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Spectrum Analyzer

1. Power Keypad and unit USB A port button keys LCD display 640 X 480 color LCD display The display shows the soft keys for the current function frequency amplitude and marker information Function keys 7 The F1 to F6 function keys directly correspond to the soft keys on the right hand side of display Frequency Sets the center frequency start frequency stop frequency and step frequency Span Sets the span with options for full span zero span and last span 10 GW INSTEK GETTING STARTED Amplitude Sets the amplitude reference level Amplitude scale and amplitude units Autoset Automatically searches the peak signal with maximum amplitude and displays it with appropriate horizontal and vertical scales Marker The Marker key is used to configure the markers trace markers as well as other related functionality Marker Peak Search Peak Finds each maximum and sa minimum peak Used with the Marker functions Meas Configures ACPR and OCBW measurements Meas Limit Line Limit Line Sets and tests Pass Fail limit lines BW Sets the resolution bandwidth w Sets traces and trace related functions Trace Trace Display The Display key configures the split screen windowing mode and the basic display
2. Input Parameter Values 22 Selecting this type of menu key will allow you to enter a new value with the numeric keypad or increment decrement the value using the scroll wheel or number pad See the parameter input description below for more details GW INSTEK GETTING STARTED Toggle State Pressing this menu key will toggle the state Notice that any soft menu key that can be toggled will have the active parameter underlined Toggle State amp Input Parameter Pressing this menu key will allow you to toggle the state of the function between on and off When in the on state the parameter value can be manually edited Use the numeric keypad to enter the new value or use the scroll wheel to increment decrement the current value Again the setting that is underlined is the active setting Sub Menu Pressing the More menu key will enter a submenu Sub Menu to select parameter Pressing this type of menu key will enter a submenu to select a parameter 23 GW INSTEK GSP 730 User Manual Return to the Start of a Menu Tree Active Function Parameter input 24 When you have navigated down a menu tree and you wish to return to the start of the menu tree simply press the same Menu again For example if you pressed trace gt More F6 gt Min Hold F2 s
3. 142 0 152 0 APPENDIX 109 GW INSTEK GSP 730 User Manual Declaration of Conformity We GOOD WILL INSTRUMENT CO LTD No 7 1 Jhongsing Rd Tucheng Dist New Taipei City 236 Taiwan GOOD WILL INSTRUMENT SUZHOU CO LTD No 69 Lushan Road Suzhou New District Jiangsu China declare that the below mentioned product Type of Product Spectrum Analyzer Model Number GSP 730 is herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Laws of the Member States relating to Electromagnetic Compatibility 2004 108 EEC and Low Voltage Directive 2006 95 EEC For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Directive the following standards were applied EMC EN 61326 1 EN 61326 2 1 Electrical equipment for measurement control and EN 61326 2 2 laboratory use EMC requirements 2006 Conducted and Radiated Emissions Electrostatic Discharge EN 55011 2009 A1 2010 EN 61000 4 2 2009 Current Harmonic Radiated Immunity EN 61000 3 2 2006 A1 2009 A2 2009 EN 61000 4 3 2006 A1 2008 A2 2010 Voltage Fluctuation Electrical Fast Transients EN 61000 3 3 2008 EN 61000 4 4 2004 A1 2010
4. RS232 port VGA port Security slot Power socket RS232 fore RS232 9 pin DSUB port USB B USB B Device port USB 1 1 2 0 VGA VGA video out port Supports SVGA 480X640 Fan Power Socket 100 240V 50 60Hz 15W Max Power Socket Security Slot o Kensington type security slot 14 GW INSTEK GETTING STARTED Display Marker information Function w menu Reference ak biba CE Frequency level Traces and Softme u waveforms keys Frequency Bandwidth C E cop 1520 settings NN Entry Message area Trace icons Reference level Displays the reference level For details see page 34 Marker Displays marker information For details see page information 38 Function menu Displays the current function menu Soft menu keys The Soft menu keys are associated with the F1 to F6 function keys to the right of the display Trace Icons Displays the color of each active trace and the trace mode of each active trace See page 62 for more information about traces Entry Message This area is used to show system messages errors area and input values parameters 15 GW INSTEK GSP 730 User Manual Frequency Displays the Start Center and Stop frequencies Bandwidth RBW Span and Sweep settings settings Trace and Main display showing the traces page 62 limit waveforms lines 57
5. Description While the Marker Table function is the active function the position of each marker and delta marker can be edited within the marker table 1 Use the arrow keys to move the cursor to the frequency column of the desired marker Cursor 2 Enter the new position of the marker using the keypad and units keys 45 GW INSTEK GSP 730 User Manual Peak Search The Peak Search key is used to find trace peaks The currently active marker is used in conjunction with the peak functions to mark the peaks that are found Peaks can be sorted by frequency or amplitude in the peak table Move Marker to Peak Description Move the active marker to the highest peak The highest peak can be either found once or continuously Operation 1 Press Matter gt Marker F1 and select a marker number 2 Press 5 gt Peak Search F1 The marker will move to the highest signal peak 3 To continually search for the peak each sweep press 85 gt More F6 gt Peak Track F1 and set Peak Track to ON Move Marker and Peak to Center Description The Peak to Center function moves the marker to the highest signal peak and moves the center frequency to that peak Operation 1 Press w e gt Select Marker F1 and select a marker number 2 Press 8 gt Peak to Center F5 The span will not be changed Note 46 GW INSTEK BASIC OPERATION Search for Peaks Description T
6. Freq Sort by frequency in ascending order Amp Sort by amplitude in ascending order Display The bottom half of the screen shows the peak table with the peak marker no frequency and amplitude Peak markers Peak Search 591 dBm Start 0 0KHz Center 20 0MHz Stop 40 0MHz RBW 300kHz Span 40 0MHz Sw 500 0ms Peak Table dBm No Peak Search Peak Table 49 GW INSTEK GSP 730 User Manual Measurement This section describes how to use the automatic measurement modes The GSP 730 includes the following measurements e ACPR from page 51 e OCBW from page 54 Channel Analysis Overview Description Channel analysis measurement includes ACPR adjacent channel power and OCBW occupied bandwidth measurements Parameters Channel bandwidth The frequency bandwidth the target channel occupies Range Between 0Hz 3GHz 0Hz excepted Channel Space The frequency distance between each main channel Range Between 0Hz 3GHz Adjacent channel The frequency bandwidth 1 amp 2 bandwidth the adjacent channels occupy Range Between 0Hz 3GHz 0Hz excepted 50 GW INSTEK BASIC OPERATION Adjacent channel offset The frequency distance 1 2 between the adjacent channels and main channel Range 1 Between 0Hz 3GHz 0Hz excepted OCBW The ratio of occupied bandwidth to the amount of power consumed Range 0 to 100 0 1 resolution ACPR Descriptio
7. Surge Immunity EN 61000 4 5 2006 Conducted Susceptibility EN 61000 4 6 2009 Power Frequency Magnetic Field EN 61000 4 8 2010 Voltage Dip Interruption EN 61000 4 11 2004 Low Voltage Equipment Directive 2006 95 EEC Safety Requirements EN 61010 1 2010 EN 61010 2 030 2010 GW INSTEK INDEX AGPRieihsts hen deelncieanattiees 51 SY DOARA 3 Adjacent channel power 51 Limit lines Amplitude Creation ivelbacivvacsucsvvead ects wasvessventsente Reference level c cccceeeees 34 35 Overview ae Scale diV scsssssssssssssssesesssseeeeseee 35 Pass fail testing ccceeeseeeeees 59 Autost sheesh hes 36 List Of features 8 Horizontal settings 0ccc 37 Marker Vertical settings eee 37 Delta markers ccccccseeseeseeees 40 Average Move TO APACE unrar 43 Ae etn ite tas inden nae 65 Moving markers manually 41 Bandwidth Moving markers to preset RBW ooo 61 iar E EE tices E Caution SyMDOI cesses 3 Pea a sae ain 16 Cleaning the instrument 5 Peak table 48 Conventions MT abe westiseoecieratvesasniebedetnnace 44 Declaration of conformity 110 Marketing Default settings ccccee 105 COREACE E 104 Display Measurement Brightness ccscsseseseeeseeteseseeees Reference level line me Spit spectrum VieW cceeeee Video OUltissi ie cieessnsvisssseceeard Displ
8. Frequency Example Ref 30 0dBm 3 F Start 0 0kHz Center 15GHz Stop 3 0GHz RBW 1 MHz Span 3 0GHz Sweep 84sec Center 10MHz 2 Before Autoset default state Autoset 32 a 5 5 Start 500 0kHz Center LOMHz Stop L5MHz RBW 30kHz Span 1 0MHz Sweep 1 5sec Ref 20 After Autoset 36 GW INSTEK BASIC OPERATION AN RBW setting is reset to Auto when the Autoset Note function is used Limiting the Autoset Vertical Search Range Description You can set the amplitude floor so that the signals lower than the setting will be ignored by the Autoset search Operation 1 Press gt Amp Floor F2 and switch the range from Auto to Man 1 Enter the amplitude limit with the number pad and Enter key Range 50 to 20dBm AN See page 35 for setting the amplitude units Note Limiting the Autoset Horizontal Search Range Description You can change the frequency span limit in the display to get a better view of the Autoset result By default the frequency span after Autoset is set at 3MHz Operation 1 Press ost gt Span F3 and switch the range from Auto to Man 2 Enter the span frequency for the Autoset search Manual Range full amplitude range 37 GW INSTEK GSP 730 User Manual Marker A Marker shows the frequency and amplitude of a waveform point The GSP 730 can activate up to 5 markers or marker pairs simultaneously
9. Start 500 0kHz Center LOMHz Stop LSMHz RBW 30kHz UU Sweep 1 5sec Center 10MHz Set center frequency 28 GW INSTEK BASIC OPERATION Start and Stop Frequency Description The start stop frequency function will set the start and stop frequency of the span Operation 1 To set the start frequency press Frequency gt Start F2 and enter the frequency and unit 2 To set the stop frequency press Frequency gt Stop F3 and enter the frequency and unit Range 0kHz 3GHz Default Start frequency OHz Default Stop frequency 3GHz Display E Ref 20 0dBm Start 500 0kHz Cent 10MHz Start Frequency Stop Frequency AN The start and stop frequency can change when the Note span settings are used The stop frequency must be set higher than the start frequency for spans 0 29 GW INSTEK GSP 730 User Manual Center Frequency Step Description The Step function sets the step size of the center frequency when using the arrow keys When the arrow keys are used to alter the center frequency each press will move the center frequency by the step size specified by the Step function By default the center frequency step size is equal to 10 of the span Operation 1 Press Frequency gt Step F4 and set the center frequency step size Range 1Hz 3GHz Display inal 30 GW INSTEK BASIC OPERATION Span Settings Span Description The Span fun
10. st stp 81 GW INSTEK GSP 730 User Manual Command types There are a number of different instrument commands and queries A command sends instructions or data to the unit and a query receives data or status information from the unit Command types Single A single command Command with without a parameter Example meas freq cen 100 MHz Query A query is a simple or compound command followed by a question mark 2 A parameter data is returned Example meas freq cen Command Meas freq cen 100 khz Format l UUJ 1 2345 1 Commandheader 4 Optional space 2 Space 5 Unit or suffix 3 Parameter 1 Common Type Description Example npun Returni lt Boolean gt Boolean logic 0 1 Parameters lt NR1 gt integers 0 1 2 3 lt NR2 gt decimal 0 1 3 14 8 5 numbers lt NRf amp any of NR1 2 1 1 5 82 GW INSTEK REMOTE CONTROL lt freq gt lt NRf gt unit 2 5 mhz Unit kHz MHz GHz Note The unit can be omitted defaults to currently set unit lt refl gt lt NRf gt unit 30 dBm Unit dBm dBmV dBuV Note The unit can be omitted defaults to currently set unit lt ampl gt NR3 unit 30 0 dBm Note The unit can be omitted Unit defaults to current unit lt trace data gt 92 91 89 92 92 91 CSV data that represents each point in a trace lt string gt ASCII string data Message Sree set LF Line feed code 0x0A 83 GW INSTEK G
11. The marker table and peak table functions help editing and viewing multiple markers in a single display The delta marker function allows you to see the frequency and amplitude differences between reference markers The GSP 730 can automatically move a marker to various locations including the peak signal center frequency and start stop frequency Other marker operations regarding signal peaks are available in the Peak Search function e Activating a Marker from page 39 e Activate a Delta Marker from page 40 e Move Marker Manually from page 41 e Move Marker to Preset Locations from page 42 e Move Marker to Trace from page 43 e Turn All Markers On or Off from page 44 e Show Markers in Table from page 44 e Peak Search from page 46 e Move Marker to Peak from page 46 e Move Marker and Peak to Center from page 46 e Search for Peaks from page 47 e Peak Table from page 48 38 GW INSTEK BASIC OPERATION Activating a Marker There are two basic marker types normal markers and delta markers Normal markers are used to measure the frequency time or amplitude of a point on the trace Delta markers are used to measure the difference between a reference point and a selected point on the trace Activate a Normal Marker Operation 1 Press se gt Marker F1 and select a marker number Marker 1 5 2 Press F2 to turn the selected marker on 3 Press Mode F3 and set the marke
12. meas acpr lower Description Returns the lower ACPR measurement result for the selected channel offset offset 1 or 2 Query syntax meas acpr lower 1 2 Parameter 1 Channel offset 1 2 Channel offset 2 Return parameter lt NR2 gt Returns the ACPR measurement result Example meas acpr lower 1 gt 6 0 meas acpr upper Description Returns the upper ACPR measurement result for the selected channel offset offset 1 or 2 Query syntax meas acpr upper 1 2 Parameter 1 Channel offset 1 2 Channel offset 2 Return parameter lt NR2 gt Returns the ACPR measurement result Example meas acpr upper 1 gt 11 8 Set meas ocbw Description Turns the OCBW function on or off or queries its status 97 GW INSTEK GSP 730 User Manual Syntax meas ocbw onl off Query Syntax meas ocbw Parameter On OCBW mode on Return parameter Off OCBW mode off Example meas ocbw on Turns the OCBW function on meas ocbw bw Description Returns the OCBW in kHz Query syntax meas ocbw bw Return parameter lt freq gt Returns the OCBW in kHz Example meas ocbw bw gt 4000kHz meas ocbw chpw Description Returns the channel power in the current unit Query syntax meas ocbw chpw Return parameter lt power gt Returns the channel power Example meas ocbw chpw gt 63 5 Limit Line Commands meas lmtline passfail ssssssssssssssssssssssrssssrstsssssrer
13. 300 0ms Lower spectrum Start 0 0kHz Center LOMHz Stop 2 0MHz Alternate RBW 30kHz Span 2 0MHz Sw 15sec Sweep Split Screen On 68 GW INSTEK BASIC OPERATION Split spectrum Half Upper functions Half Lower Alternate Sweep Half Upper will put the spectrum analyzer into split screen mode It will make the top sweep the active sweep and pause the bottom sweep When Half Upper is on only the upper sweep parameters can be edited Half Lower will put the spectrum analyzer into split screen mode It will make the bottom sweep the active sweep and pause the top sweep When Half Lower is on only the lower sweep settings can be edited This setting will alternate the sweep between the bottom and top spectrums If alternate sweep is turned on only the upper sweep parameters can be edited 69 GW INSTEK GSP 730 User Manual Operation Press i Display gt Half Upper F4 or Half Lower F5 or Alternate Sweep F6 to enable the split spectrum view Turning Half Upper on will automatically turn Half Lower off Turning Half Lower on will automatically turn Half Upper off If Alternate Sweep is turned on each sweep will alternate but only the upper sweep parameters can be edited To return to a full screen single spectrum display press Full Display F2 N Note 70 After exiting the split spectrum view the analyzer will use the settings from the active window The
14. Example con sys ser gt XXXXXXXX _ 02 GW INSTEK FAQ Fag connected the signal but it does not appear on screen The trace is updated too slowly cannot see the trace on the screen The performance does not match the specification connected the signal but it does not appear on screen Run Autoset and let the GSP 730 find the best display scale for your target signal Press the Autoset key then press Autoset F1 For details see page 36 The trace is updated too slowly on the screen The sweep time determines how often the trace is updated on the screen To increase the sweep time try reducing the span or using a wider RBW setting cannot see the trace on the screen If you cannot see the trace on the screen there may be a number of possibilities 1 The trace is just off screen Try to adjust the reference level with the amplitude key 2 The trace may be in the Blank mode Putting the trace into view mode will enable the trace to be viewed again 103 GW INSTEK GSP 730 User Manual The performance does not match the specification Make sure the device is powered On for at least 30 minutes within 20 C 30 C This is necessary to stabilize the unit to match the specification For more information contact your local dealer or GWInstek at www gwinstek com marketing goodwill com GW INSTEK APPENDIX A pren DIX GSP 730 Default Settings The follow
15. AN The default settings cannot be changed Note 75 GW INSTEK GSP 730 User Manual System Settings System Information Description The System Information displays the following Serial Number XX digit serial number HW Version Hardware version FW Version Firmware version SW Version Software version Language Shows the language number as seen in the System gt Language menu Operation 1 Press Ss gt Information F4 to display the system information The system information will be displayed on the system menu soft keys Example ee System information System Language Description The language option sets the icon display language 76 GW INSTEK BASIC OPERATION Operation 1 Press Sm gt Language F3 to bring up the Language menu 2 Choose a system language The language number is the number that will be displayed in the system information Sets the language to Language 1 English English Language 2 Chinese S Sets the language to simplified Chinese 77 GW INSTEK GSP 730 User Manual REMOTE CONTROL This chapter describes basic configuration of TEEE488 2 based remote control For a command list refer to the programming manual downloadable from GW Instek website www gwinstek com Interface Configuration cccccscccacsoscscasseacsencnencesnenenesenctenever 79 Configure Remote Interface 0405 79 Remote Control Function Check 8
16. C to 60 C lt 60 C 70 RH Disposal Do not dispose this instrument as unsorted municipal waste Please use a separate collection 4 facility or contact the supplier from which this instrument was purchased Please make sure discarded electrical waste is properly recycled to reduce environmental impact GW INSTEK GSP 730 User Manual Power cord for the United Kingdom When using the instrument in the United Kingdom make sure the power cord meets the following safety instructions NOTE This lead appliance must only be wired by competent persons WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT The wires in this lead are coloured in accordance with the following code Green Yellow Earth Of Blue Neutral fe Brown Live Phase As the colours of the wires in main leads may not correspond with the coloured marking identified in your plug appliance proceed as follows The wire which is coloured Green amp Yellow must be connected to the Earth terminal marked with either the letter E the earth symbol or coloured Green Green amp Yellow The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the equipment or contact the supplier This cable ap
17. CH Offs 1 F2 Sets the channel offset of the 1st adjacent channel Adj CH BW 2 F3 Sets the bandwidth of the 2 adjacent channel Adj CH Offs 2 F4 Sets the channel offset of the 274 adjacent channel The adjacent channel bandwidth and space settings are shown in the setup area at the bottom of the screen not on the soft key icons Adj CH1 settings i Adj CH BW 2 Adj CH2 settings Adj CH Offset 2 ACPR Move Channels 1 Up Down Press the again or press Return F6 repeatedly to return to the start of the Measure menu tree Press CH Up F5 to go to the next main channel Press CH Down F6 to go to the previous main channel N Note The channel space Main CH Space setting determines where the next main channel is located 53 GW INSTEK GSP 730 User Manual OCBW Description Occupied bandwidth measurements are used to measure the power of the occupied channel as a percentage to the power of the channel Example CBW 2 E Operation Press C gt OCBW F3 and turn OCBW on Setting up the main channel 54 Any other measurement mode will automatically be disabled The display splits into two screens The top shows the channel bandwidth The bottom screen shows the OCBW measurement results in real time Turn OCBW off to return back to the normal mode GW INSTEK BASIC OPERATION CH BW Measurement Start 0 0KHz Center 10 0MHz Stop 20 0MHz RBW 30
18. Multidrop Stop Bit F3 1 1 5 2 Data F4 5 6 7 8 Remote Control Function Check Functionality Invoke a terminal application such as MTTTY check Multi Threaded TTY To check the COM port No see the Device Manager in the PC For WinXP go to Control panel System Hardware tab Run this query command via the terminal after the instrument has been configured for remote control page 79 idn 80 GW INSTEK REMOTE CONTROL This should return the Manufacturer Model number Serial number and Firmware version in the following format e GW INSTEK GSP 730 XXXXXXXX V VV Manufacturer GW INSTEK Model number GSP 730 Serial number XXXXXXXXXXXX Firmware version V VV AN For further details or if you have trouble running Note this function check please see the programming manual available on the GW Instek web site www gwinstek com Command Syntax Partial compatibilit Compatible ERE TO alae satin Standard SCPI 1999 Partial compatibility Command SCPI Standard Commands for Programmable Structure Instruments commands follow a tree like structure organized into nodes Each level of the command tree is a node Each keyword ina SCPI command represents each node in the command tree Each keyword node of a SCPI command is separated by a colon For example the diagram below shows an SCPI sub structure and a command example meas meas freq cen freq cen
19. USB flash drive The screen shot is saved as a bitmap file 73 GW INSTEK GSP 730 User Manual Operation 1 Insert a USB flash drive into the USB port 2 Press and the image file will begin saving Wait a few moments for the file to save When the file has finished saving Screen Saved OK will appear at the bottom of the display AN The file name will be automatically created in the Note following format File name SCRXX bmp Where XX is a number that is incremented each time the file is saved AN Do not remove the USB drive until the file has Warning completed saving Hardcopy Setup Description The Hardcopy Setup key is used set the image file properties of the bitmap file that is created when the Hardcopy key is pressed Ink Normal This is the normal default image setting Ink Saving This will invert all the colors on the display so that the file will conserve ink when printed Operation 1 Press and choose the image type Ink NormalfF1 Ink Saving F2 74 GW INSTEK BASIC OPERATION AN The next time the Hardcopy key is pressed the Note image will be saved using the settings above Load Default Settings Description The Preset key is used to load the default settings The default settings are listed in the appendix on page 105 Operation 1 Press Preset e The system will load the preset settings and the screen will update with the new settings
20. e D EEEE TE 96 measurement meas acpr lower SeSedesesesedesedsdedegeseseceesecesesecesedesesesesesesesedsseseses 97 commands meas acpr upper MEAS OCDW eeseeeee meas ocbw bw meas Ocbw ChpW isssiiisiesririsiririsissririrsssririsisriniiiisssisiirisiss 98 Limit Line commands BW commands Display commands Preset commands System commands meas lmtline passfail meas lmtline on meas lmtline off cccccccccesscssescsscsscscsscsscsecsssscsscscescescesseeeees COND Ws AUULO vacexeisdaxansaadscavadedinessdadinavedsdsaansdsdieavaaadisrscaitanendates CONMDWP seeeeeseeeeeee COMO WAM EEE E S 100 CONTO dE anasan anna annaa 100 LOTUS WO ods Fe esos ck cases kad caasandenstsceseaatsascsnsassacedeteastsasusscsebieas 101 Con disp splitUPPer s ssssssssssssrsssssssrssssssrrsessssreessssrrressssreees 101 COndisp spltloWet ic niec rk ni anni iene 101 con disp split alt ats sins insti LOL COnidisp split full sie ccssascsccsscsdissssssessavassaevsnsansacissesgiersacasscayeis 102 CONIPLESEL si sassascssasscsesnessss cavacsceasnacscenszassdeasesesioeaascaieatasaadsaseoaas 102 COMES YS SEUP rrin rE EP S 102 85 GW INSTEK GSP 730 User Manual IEEE488 2 Standard Commands DN ee R nuaatieeraaess 86 IDN Description Queries the manufacturer model number serial number and firmware version of the instrument Query Syntax IDN Return parameter lt string gt Returns the instrume
21. gt Marker F1 and select a marker number 2 Use the left right arrow keys to move the marker one screen division at a time or the use the scroll wheel to move the marker in fine increments one pixel at a time 3 Alternatively the numeric keypad can be used to directly enter the frequency of the marker position 41 GW INSTEK GSP 730 User Manual Move Marker to Preset Locations Preset conditions The currently selected marker normal marker or delta marker can be moved to a number of preset positions Center Move to center frequency Peak Move to the highest peak Start Move to start frequency Stop Move to stop frequency Step Move to step frequency Ref Level Move to reference level amplitude A N When a marker is moved to a preset position the Note span and other settings may be automatically changed Move marker to Press e gt To Peak F4 peak Move marker to Press e gt To Center F5 center Move marker to Press er gt More F6 gt Marker to F4 and other positions select one of the preset positions Marker to Start F2 Marker to Stop F3 Marker to Step F4 Marker to Ref Level F5 GW INSTEK BASIC OPERATION Move Marker to Trace Description The Marker Trace function moves the selected marker to the currently active trace Operation 1 Press Matter gt Marker F1 and select a marker number 2 Press More F6 gt Marker Trace and select a t
22. in trace A or swaps the data from trace A to trace B Math functions A lt gt B Swaps the data from trace A to B and vice versa A B gt A Adds trace A and B and stores the result in trace A A B gt A Subtracts trace B from trace and stores the result in trace A A const gt A Adds an offset to trace A A const gt A Subtracts an offset from trace A Operation 1 Press te gt Trace Math F3 and select a trace math function A lt gt B F7 A B gt A F2 A B gt A F3 A const gt A F4 A const gt A F5 2 If A const gt A or A const gt A was selected set the constant offset value Constant 40dBm 40dBm g GW INSTEK BASIC OPERATION Average Trace Description The Average function averages the currently selected trace for a user defined number of times before it is displayed This feature smoothes the noise level but has the drawback of slowing down the display update rate Operation 1 Press te gt More F6 and toggle Avg on 2 Set the number of averages Range 4 100 Default 4 GW INSTEK GSP 730 User Manual Example Ref 20 0dBm Stop LoMHz Sweep 15sec Trace Functions Average Off Ref 20 0dBm Stop L5MHz Sweep 15sec Average 8 Average On 8x 66 GW INSTEK BASIC OPERATION Display The Display key configures the basic display settings as well as the split screen modes Adjusting the LCD Bri
23. is recognized by the Windows Device Manager when the GSP 730 in connected to the PC In Windows XP go to Start gt Control Panel gt Device Manager 20 GW INSTEK GETTING STARTED The GSP 730 should be shown under the Ports COM amp LPT node gt 7 Ports COM amp LPT ne J 5P 7350 COMMIS AN If the USB driver installation fails you can try to Note manually install the driver You can tell that the driver hasn t been installed if you see the AT91USBSerial icon in the ports node iv ATSLUSBSerial Right clicking this icon will allow you to manually install the GSP 730 ini driver Restoring Default Settings Description The factory default settings can be easily restored using the Preset key on the front panel The default settings cannot be changed See page 105 for a list of the factory default settings Steps 1 Press Preset e The spectrum analyzer will load the default factory settings 21 GW INSTEK GSP 730 User Manual Conventions The following conventions are used throughout the user manual Read the conventions below for a basic grasp of how to operate the GSP 730 menu system and front panel keys Soft Menu keys The F1 to F6 function keys on the right side of the display correspond directly to the soft menu keys on their left F1 F6 function keys Soft menu keys TAMSTER GSP 730
24. refl Description Sets or queries the reference level 89 GW INSTEK GSP 730 User Manual Syntax meas refl lt refl gt Query Syntax meas refl Parameter lt refl gt Reference level in the currently selected unit from the meas refl unit command Return parameter lt refl gt Returns reference level and unit Example meas refl 10 Sets the reference level to 10 dBm for unit dBm Query Example Meas refl gt 10 dBm Marker and Peak Search Commands meas mark meas mark meas mar meas mar meas mar meas mar meas mar meas mar meas mar meas mark topedle c seccissiscsisssssscsecosesesossesessenseseseseseseiesninsets 93 PLEAS Mar EON pia nA R rs 94 MEASHMALK tLACE eiorinn Na 94 Set meas mark on Description Sets or queries which markers are turned on Syntax meas mark on lt NR1 gt all Query Syntax meas mark on lt NR1 gt Parameter lt NRI1 gt Marker number 1 5 all All markers Return parameter ON The selected marker is on OFF The selected marker is off 90 GW INSTEK REMOTE CONTROL Example meas mark on 1 Turns marker 1 on Query Example Meas mark 1 gt OFF meas mark off Set Description Sets which markers are turned off Syntax meas mark off lt NR1 gt all Parameter lt NR1 gt Marker number 1 5 All All markers Example meas mark off 1 Turns marker 1 off meas mark norm Set Description
25. 0 Command Syntax cciccssseisacavoisieiet aussie 81 Command Listessi nissana perinne en anenee 84 78 GW INSTEK REMOTE CONTROL Interface Configuration Configure Remote Interface USB PC side Type A host configuration connector GSP side Rear panel Type B slave connector Speed 1 1 2 0 full speed RS232 PC side RS232 male port configuration connector GSP side RS232 female port connector Baud Rate 9600 19200 38400 57600 115200 Parity None Even Odd Space Mark Multidrop Stop bit 1 1 5 2 Data bit 5 6 7 8 Description The GSP 730 can use either the type B USB port or the RS232 on the rear panel for remote control When using the USB B port the GSP 730 uses a USB driver to simulate an RS232 connection with a PC via USB It is these RS232 settings that are configured for remote control Before using the USB B port for remote control please install the USB driver See page 20 for details 79 GW INSTEK GSP 730 User Manual Panel operation 1 USB Connection Connect a USB cable from the PC oR e to the rear panel USB B port RS232 Connection RS232 Connect an RS232C cable from the PC to the rear panel RS232 port 2 Press sem gt Serial Port F1 gt Serial F1 to enter the remote configuration 3 Set the following RS 232 settings using the arrow keys Baud RatefF1 9600 19200 38400 57600 115200 Parity F2 None Even Odd Space Mark
26. 0kHz Span 20 0MHz OCEH Measurement Mz 75 4 dBm OCBW ON Channel power and OCBW power results 3 Press Channel Setup F1 and set the following Main CH BW F1 Set the bandwidth of the main channel Main CH Space F2 Specify the channel spacing Note The main channel bandwidth and space settings are shown in the setup area at the bottom of the screen not on the soft key icon Channel BW Channel space i 55 GW INSTEK GSP 730 User Manual Move Channels 1 Press again or press Return F6 Up Down repeatedly to return to the start of the Measure menu tree 2 Press CH Up F5 to go to the next main channel 3 Press CH Down F6 to go to the previous main channel AN The channel space Main CH Space setting Note determines where the next main channel is located 56 GW INSTEK BASIC OPERATION Limit Line Testing The Limit Line function is used to set the upper or lower amplitude limits over the entire frequency range The limit lines can be used to detect whether the input signal is above below or within the limit lines The limit lines can be manually edited using 10 frequency points from the start to the stop frequencies To save and recall limit lines please see page 73 Activate a Limit Line Operation 1 Press to enter the Limit Line menu 2 Press H Limit F1 or L Limit F2 and turn the high or low limit on or off H Limit L Limit On Off e The H Limi
27. GW INSTEK REMOTE CONTROL Parameter lt NR1 gt Marker number 1 5 Return parameter lt freq gt Returns the relative frequency and unit of the selected delta marker Example meas mark norm freq 1 gt 12 0kHz meas mark delta level Description Queries the amplitude of the selected delta marker Query syntax meas mark delta level lt NR1 gt Parameter lt NR1 gt Marker number 1 5 Return parameter lt amp gt Returns the amplitude and unit of the selected delta marker Example meas mark delta level 1 gt 10 0dBm meas mark tomin Set Description Sets the selected marker to the minimum peak Syntax meas mark tomin lt NR1 gt Parameter lt NR1 gt Marker number 1 5 Example meas mark tomin 1 Sets marker 1 to the minimum peak meas mark topeak Set Description Sets the selected marker to the peak Syntax meas mark topeak lt NR1 gt Parameter lt NR1 gt Marker number 1 5 Example meas mark topeak 1 Sets marker 1 to the peak 93 GW INSTEK GSP 730 User Manual meas mark tonp Set Description Moves the selected normal or delta marker to the next peak Syntax meas mark tonp lt NR1 gt Parameter lt NRI gt Marker number 1 5 Example meas mark tono 1 Moves marker 1 to the next peak meas mark trace Set Description Sets the selected marker to the selected trace Syntax meas mark topeak lt NR1 gt lt trace gt Par
28. Line Testing sisescecdiatscscicccsssctsaessacsusseessasecneecesssace one 57 Activate a Limit Line oo eee 57 Creating a Limit Point by Point 58 Bandwidth ssid aware ie iat ssie inisee sE EEE EEEE EESE KE EKN 61 Resolution Bandwidth Setting RBW 61 LE E E dacs ake iocaibcaponsedackwensansenaneaduiadaee 62 Selecting a Trace eeseseseseseseseseseseseseeese 62 Trace Mathisens honnan eeano 64 Aveta g TraCErsreiis meae Eae ea 65 Displayzenoei e E wend 67 Adjusting the LCD Brightness 67 Setting a Display Line Reference Level LIME sesics senses dtiwvccses venting eabeanes sebeeeesmawecsce sabe 67 Using the Video Out Port 68 Split Spectrum VieW eere 68 Save Recall Files ssivccssesicerssovccerdvavevetivoscrvespoveveerewteeeevevs 71 Save Recall Setup sonseccererestetiauncaamrnseane 71 Save Recall Trace Data 72 Save Recall Limit Lines 73 Saving an Image File Hardcopy 73 Load Default Settings oeer 75 Syst m Setting Ssesceccocp E on n anepo Enn a 76 System Information sicrccwssivsccernorrclosndbinendes 76 System Language eects ee sence ees 76 27 GW INSTEK GSP 730 User Manual Frequency Settings Center Frequency Description The center frequency function sets the center frequency and centers the display to the center frequency Operation 1 Press Feaveney gt Cen ter F1 and enter the frequency and unit Range 0kHz 3GHz Default 1 5GHz Display am Freauency Ref 20 0dBm
29. MHz 1GHz Inherent Spurious Response less than 45dBc 40dBm Ref Level typical less than 50dBc Amplitude Reference Level Input Range 20 to 40dBm Accuracy Within 2dB 1GHz SPAN 5MHz Unit dBm dBV dBuV Average Noise Level lt 100dBm typical center frequency 1GHz RBW 30kHz Frequency Characteristic within 3 0dB 300MHz 2 6GHz within 6 0dB 80 300MHz 2 6 3GHz 107 GW INSTEK GSP 730 User Manual Input Input Impedance 50ohm Input VSWR less than 2 0 input att 210dB Input damage 30dBm CW average power 25VDC level Input connector N connector Sweep Sweep Time Setting Range 300ms to 8 4s auto not adjustable Accuracy within 2 frequency span full span General Communication Display 640 480 RGB color LCD Interface RS 232C Sub D female D 9 pins USB Connector USB Host Device full speed supported VGA Output Sub D female 15 pins Power Source AC 100 240V 50 60Hz Other Operating 5 to 45 C Temperature Guaranteed at 25 5 C without soft carrying case Operating Less than 45 C 90 RH Humidity Storage 20 to 60 C less than 60 C 70 RH Temperature Dimensions 296 L x 153 W x 105 H mm Weight Approx 2 2kg 108 GW INSTEK GSP 730 Dimensions
30. SP 730 User Manual Command List IEEE488 2 ATDIND A E A AA E 86 Standard Commands Sweep Commands Frequency MEAS freg CON sciis isna eia Ea 87 Commands MEASHLEG SE sccsisicissasecesesesaseiasnssiatessseteseoedesaiecasadssanesedsbeseseiasennie 87 aA HEGESEP sitting WA niacin nena Ain 88 Span Commands MEAS SPAN cssssccssccsssscsssscssesscsssessvsesssvessssessivesseasssssesavivest deeseaseee 88 Mmeasispan full icccicsssesoseseseseissessistesssesesooesesaiscesasssanesesesesesesnsesnse 89 Amplitude HPS ASHE Hl ATA 550556585 515 505e ssh ocadeced ein E aS 89 Commands meas refl nesnr sonn En R NEEC RENERE ERREN REENER 89 Marker meas martk on Commands meas mark off meas mark norm meas mark norm freq meas mark norm level Heas mark delta 2 sieieevssiecsesisaseevsgatixnsaadesevesatanresuatereeaseearae meas mark delta freq ceccescesesseesesessessessesseseessssessessessesee 92 meas mark delta level meas mark tomin meas mark topeak MeastiiarkstOM pp arseno neinni E E meas mark trace e sesessessessesseseoseeseesersessessessossesseseeseesessessessesees Trace commands meas tra vall val2 sssssssesesessosesessosesessesesessosesessosesensosesesseses 94 84 GW INSTEK REMOTE CONTROL MEAS tEAAV LION ssscsecessseiscniessssssseceseseseseiacuiasstecaietedooesesedesasesaion 95 MEAS HPALAV SOLE sus nn aa run NER RS 95 tieas traitead esninsisirinisieserssersirisirirsearort isase 96 Power ranla eTe
31. Sets the selected marker to normal mode Syntax meas mark norm lt NR1 gt Parameter lt NR1 gt Marker number 1 5 Example meas mark norm 1 Sets marker 1 to normal mode meas mark norm freq Description Queries the frequency of the selected normal marker Query syntax meas mark norm freq lt NR1 gt Parameter lt NR1 gt Marker number 1 5 91 GW INSTEK GSP 730 User Manual Return parameter lt freq gt Returns the frequency and unit of the selected marker Example meas mark norm freq 1 gt 1 5GHz meas mark norm level Description Queries the amplitude of the selected normal marker Query syntax meas mark norm level lt NR1 gt Parameter lt NR1 gt Marker number 1 5 Return parameter lt amp gt Returns the amplitude and unit of the selected marker Example meas mark norm level 1 gt 10 0dBm meas mark delta Set Description Sets the selected marker to delta mode It also sets the relative frequency of the delta marker in relation to the normal marker frequency Syntax meas mark delta lt NR1 gt lt freq gt Parameter lt NRI1 gt Marker number 1 5 lt freq gt Relative frequency of the delta marker Example meas mark freq 1 10 MHz Turns delta marker 1 on and sets its offset to IOMHz meas mark delta freq Description Queries the relative frequency of the selected delta marker Query syntax meas mark delta freq lt NR1 gt 92
32. Spectrum Analyzer GSP 730 USER MANUAL REVISION 1 0 MAY 2012 4 ISO 9001 CERTIFIED MANUFACTURER GW INSTEK This manual contains proprietary information which is protected by copyright All rights are reserved No part of this manual may be photocopied reproduced or translated to another language without prior written consent of Good Will company The information in this manual was correct at the time of printing However Good Will continues to improve products and reserves the rights to change specification equipment and maintenance procedures at any time without notice Good Will Instrument Co Ltd No 7 1 Jhongsing Rd Tucheng Dist New Taipei City 236 Taiwan GW INSTEK SAFETY INSTRUCTIONS Table of Contents SAFETY INSTRUCTIONS icchscercncnsconsnedensssawbsurinnetasessuatensts 3 GETTING STARTED ssssccissseczsicncicacicasesceiss sade isserrat 7 GSP 730 Introduction sccccksiesisiaeenes 8 Appearance sss rnvcsensseiieye acwececssebeceessesensesnaie 10 First Use Instructions c cece ee eee eee 17 BASIC OPERATION wisceeccittcateasecnnescadeneneeucnecnees 26 Frequency Settings cece ceeeeeee anes 28 Span Settings cwciscissvvestscpesverenbeceanoereascesany 31 Amplitude Settings eeens 34 AUTOS Cb eenig eree e E ia 36 MES EE EE 38 MGaSULEMONE ssvesecscieevetecsecastecpieseeesieeasse cee 50 Limit Line Testing cccceccceeeeeeeeeeene ees 57 Bandwidthescisnsieiei nedenini 61 WACO E E EA E aes see dade
33. ameter lt NRI1 gt Marker number 1 5 lt trace gt 0 Auto auto assign a trace 1 Trace A 2 Trace B 3 Trace C Example meas mark trace 1 2 Sets marker 1 to trace B Trace Commands Meas trarvall sy al 2 vs ssssssssscssescusssisnassssansssevensserssanseaversesesuesanseys 94 Meas tiA aV O eon ton nunen E REREN UREE N AGREN ENNE 95 mieas traavg Offisier 95 EEH E E a Ca PEE 96 meas tra vall val2 Set Description Sets the mode for the selected trace Syntax meas tra lt trace gt lt mode gt GW INSTEK REMOTE CONTROL Parameter lt trace gt Trace A 1 2 Trace B 3 Trace C 1 Clear and write mode 2 Peak hold mode 3 4 5 lt mode gt View mode Blank mode Minimum hold mode Example meas tra 1 1 Sets trace A to clear and write mode meas tra avg on Set Description Turns the average function on and sets the number of averages for the slected trace Syntax meas tra avg on lt trace gt lt NR1 gt Parameter lt trace gt 1 Trace A 2 Trace B 3 Trace C lt NRI gt 4 20 Number of averages Example meas tra avg on 1 4 Sets the number of averages used for Trace A to 4 meas tra avg off Set Description Turns the average function off for the slected trace Syntax meas tra avg on lt trace gt Parameter lt trace gt 1 Trace A Trace B 3 Trace C all All traces Example meas tra avg off all Turns the average function o
34. and marker positions 38 16 GW INSTEK GETTING STARTED First Time Use Instructions Use the procedures below when first using the GSP 730 to tilt the stand power up the instrument update the firmware and restore the unit back to the default settings Lastly the Conventions sections will introduce you to the basic operating conventions used throughout the user manual Tilting the Stand Description The GSP 730 has two adjustable tabs at the front that can be used to position the instrument into two preset orientations Leaning Position Set the tabs down to have the GSP 730 leaning backward Upright Position Set the tabs flat to have the GSP 730 in an upright position 17 GW INSTEK GSP 730 User Manual Power UP and Down Power Up 1 Insert the AC power cord into the power socket Ba 7 2 Press the power button to turn the GSP 730 on 3 The GSP 730 will begin to boot up in under a few seconds AN If system fails to start please see your local GW Note Instek distributor Power Down 1 Press the power button to power down 18 GW INSTEK GETTING STARTED Software Update Description The GSP 730 allows the software to be updated by end users Before using the GSP 730 please check the GW Instek website or ask your local distributor for the latest software The update file MAIN1 BIN must be placed in the root directory of a USB flash drive System version Befo
35. ay diagram ssssue Occupied bandwidth 54 Disposal instructions 00 5 Package content cceeeeees 9 Disposal syMbo 0 seeee 3 Peak search ccccccscescsseseesesseees 46 EN61010 Peak table ccssccsssssssssssesssseeeeses 48 Measurement category 0 0 0 4 Power COWDhL ccccceceseceeseeeseecsees 18 Pollution degree isurrirrreriis 5 Power on off nvironment Safety instruction eee 4 Safety instruction 5 P OWET UP is ssescsdscis iss seatseteesasseceoss 18 BAO eaaet ES 103 RBW cc 61 casos hes update ee ena 2 Rear panel diagram 0 14 First time use instructions 17 Remote control 78 Frequency Command list ccceeeeeeeeeeees 84 Center EGU ERCY oasis 28 Command syntax 81 Center frequency step 11 30 USB configuration 79 Start frequency Remote control function check 80 Stop frequency Restore default settings 21 Front panel diagram 4 10 Giound Service operation About disassembly eee 4 GW INSTEK GSP 730 User Manual COMACE seeeeeseeeseseeteseeteseeeenenees 104 Span Full Spatii Last span DOCS oennoracosan inaona Zero Spahe eoir Specifications Amplitude riii Dimensions 5 System 112 View error messages 76 Tilting stand oes 17 Trace UK power Cord 6 USB driver installation 20 Video out POT cece 68 Warning symbol ccceeeeees 3
36. be judged a FAIL 60 GW INSTEK BASIC OPERATION Bandwidth BW key sets the resolution bandwidth RBW The resolution bandwidth and the sweep time are related Please take into account how the sweep time is effected by the resolution bandwidth Resolution Bandwidth Setting RBW Description The RBW Resolution Bandwidth defines the width of the IF intermediate frequency filter that is used to separate signal peaks from one another The narrower the RBW the greater the capability to separate signals at close frequencies But it also makes the sweep time longer under specific frequency spans the display is updated less frequently Operation 1 Press BW gt RBWI F1 and set the RBW to Auto or Man 2 Set the resolution bandwidth and unit for Man mode Mode Auto Man Frequency Range 1MHz 300kHz 100kHz AN The manual RBW is only available when the Note span lt 10MHZ If the span is greater than 1OMHz then the RBW is automatically set to Auto 61 GW INSTEK GSP 730 User Manual Trace The GSP 730 is able to set the parameters of up to 3 different traces on the display at once Each trace is represented by a different color and is updated with each sweep To save or recall traces to from memory see page 71 Selecting a Trace Description Each trace A B C is represented by a different color Trace A is green trace B is orange and trace C is yellow When activated an icon for each t
37. ction will set the frequency range of the sweep The sweep will be centered around the center frequency Setting the span will alter the start and stop frequencies Operation 1 Press C sran gt Span F1 and enter the span frequency range and unit Range 0kHz 3GHz Default Span 3GHz Display Span Span Zero Span Start 500 0kHz Span 1 0MHz Set Span 31 GW INSTEK GSP 730 User Manual Full Span Description The Full Span function will set the span to the full frequency range This function will set the start and stop frequencies to 0Hz and 3GHz respectively Operation 1 Press gt Full Span F2 Zero Span Description The Zero Span function will set the frequency range of the sweep to 0Hz and fixes the start and stop frequencies to the center frequency The Zero Span function measures the time domain characteristics of the input signal at the center frequency The horizontal axis is displayed in the time domain Operation 1 Press sean gt Zero Span F3 The span changes accordingly GW INSTEK BASIC OPERATION Display Time domain Span Span O 0kHz Center 1 5GHz Span 0 0kHz pan ya Span 0 0kHz 2 OHz Span Example Amplitude modulation N The measurement functions such as ACPR and gt Note OCBW are not available with the zero span setting Last Span Description The last span function returns the spectrum analyzer to the previous
38. e points will revert to their default frequency and amplitude values 8 To delete a point from the editing table press Delete e The whole points including the frequency value and the amplitude are removed This command reduces the number of points used in the limit line 9 Press Undelete F5 the restore the last point that was deleted Pass Fail Testing Description The Pass Fail testing uses the limit lines as boundaries When the input signal escapes the boundary of the limit lines then the test is judged as a FAIL if the signal stays within the boundary the test is judged as a PASS 59 GW INSTEK GSP 730 User Manual Pass Fail Upper limit Upper limit Lower limit Lower limit AN i Before pass fail testing can begin limit lines for ote the upper and or lower limits must first be saved and activated See the page 57 Operation 1 Press Umitine gt Pass Fail F4 to turn the testing on or off 2 The test result is updated in real time at the bottom of the display Pass PASS Fail FAIL AN At least one limit line high or low must be turned Note on to enable testing If only high limit line is on each trace point has to be lower than the high limit line to get a PASS judgment otherwise get the judgment will be FAIL Conversely if only low limit line is on then each trace point has to be higher than the low limit line to get a PASS otherwise get the test will
39. ecalling trace data from a split spectrum only the active spectrum is saved recalled Save 1 To save the current trace data press gt Save Trace Data F3 2 Press Source Trace F1 and select the source Source A B C 3 Press Destination F2 and select the memory location to save to Destination 1 5 4 Press Start F5 to save the selected tracedata Recall 5 To recall trace data press gt Recall Trace Data F3 6 Press Source Trace F1 and select the memory location to recall from Source 1 5 7 Press Destination F2 and select the destination trace Destination A B C GW INSTEK BASIC OPERATION 8 Press Start F5 to recall the selected trace data Save Recall Limit Lines Description Upper and lower limit lines can be saved to one of 5 pre set internal memory locations The limit line data cannot be saved to USB Save 9 To save the current upper and lower limit lines press gt Limitln to F5 and choose a memory location to save to with the arrow keys Limit line 1 5 10 Press Limitin to F5 again to execute the save Recall 11 To recall pre saved upper and lower limit lines press gt Limitln from F6 and choose a memory location to recall from with the arrow keys Limit line 1 5 12 Press Limitin from F6 again to execute the recall Saving an Image File Hardcopy Description The Hardcopy key can be used to save a screenshot of the display to a
40. eses eles 62 US FAY 2 saretactn crane dnabacislaricSincatas e 67 Save Recall Files eresse 71 System SCttinGS cccsvesessepesesieaececssereceesears 76 REMOTE CONTRO L uuisiennicsinseinensa nai ara e 78 Interface Configuration nesssssssssesreeeesse 79 Command SyntaX eeeeseessesesesseerseersesrererse 81 Command List esssireresierecrereoi reniei 84 PAQ cciusicersoadipencyedusesapesidescsevar evigesesepioesigesasesieasevenesenenes 103 APPENDIX us saccssnessaseseiecunsacducsncemqesmuasasiwneuencresantesinieoers 105 GSP 730 Default Settings 105 GSP 730 Specifications sons sssasserzcdsaneeedaoays 107 GW INSTEK GSP 730 User Manual GSP 730 DIMENSIONS seeen 109 Declaration of Conformity e 110 UNIRI D OE enacts E 111 GW INSTEK SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow during operation and storage Read the following before any operation to insure your safety and to keep the instrument in the best possible condition Safety Symbols These safety symbols may appear in this manual or on the instrument AN Warning Identifies conditions or practices that WARNING could result in injury or loss of life AN Caution Identifies conditions or practices that CAUTION could result in damage to the instrument or to other properties DANGER High Voltage Attention Refer to the Manual Earth ground Terminal Frame or Chassis Terminal Do
41. ff for all the traces 95 GW INSTEK GSP 730 User Manual meas tra read Description Returns the all the trace data for the selected trace Query syntax meas tra read lt trace gt Parameter lt trace gt 1 Trace A 2 Trace B 3 Trace C all All traces Return parameter lt trace Comma separated data values data gt encapsulated in brackets i e 92 91 90 81 Example meas tra read 1 gt 92 91 90 90 90 88 89 92 92 91 Returns the trace data for the selected trace s A total of 501 trace points are returned from the start frequency to the stop frequency If all is selected the trace data is returned in three lots trace A trace B traceC The units are in decibels If the selected trace is not active Os will be returned for each trace point Power Measurement Commands IMEASIACHE EEEE EEEE 96 mleas acprilOwWeT isisisi 97 Meas AaCpriUp PEL anisa E 97 meas ocbw S sais MeASIOCH WIDOW ssiccssvissscesssnsssececesssesscesssesesssecesnseascesssesssosesestsess 98 mibas ocbwichpw arire cine hn NRO REREN 98 Set meas acpr Description Turns the ACPR function on or off or queries its status Syntax meas acpr onloff 96 GW INSTEK REMOTE CONTROL Query Syntax meas acpr Parameter on ACPR mode on Return parameter off ACPR mode off Example meas acpr on Turns the ACPR function on
42. ghtness Description The LCD brightness levels can be adjusted to five pre set levels Operation 1 Press y gt LCD Dimmer F1 and use either the number pad the scroll wheel or arrow keys to set the brightness Setting a Display Line Reference Level Line Description The Display Line function is used to super impose a reference level line over the traces Operation 1 Press sey gt Display Line F3 to turn the display line on 2 Set the display line level and press Enter Example Display line Start 500 0kHz Center 0MHz Stop 1 50 Alternate RBW 30kHz Span 1 0MH jeep 15sec Sweep 7 Center F4 Display line set at 50dBm 67 GW INSTEK GSP 730 User Manual Using the Video Out Port Description The GSP 730 has a dedicated VGA terminal to output the display to an external monitor The video output is always on Output resolution 480 x 640 fixed Operation 1 Connect an external monitor to the rear panel VGA terminal Split Spectrum View Description The split spectrum view is able to view two different sweep ranges on the display at the same time using a split screen view The top and bottom view can have independent sweep ranges amplitudes spans and other settings However only one split screen top or bottom can be swept each time Example ones Ref 30 0dBm_ Upper spectrum Start 115GHz Center 12GHz Stop 1 25GHz RBW 1 MHz Span 100 0MHz Sw
43. he key can be used to search for a number of different peaks Peak Search Next Peak Searches for next highest peak visible on the display Next Peak Right Searches for the next peak to the right of the marker Next Peak Left Searches for the next peak to the left of the marker Min Search Searches for the lowest peak Operation 1 Press vse gt Select Marker F1 and select a marker number 2 Press sean and select the type of peak you wish to find Exa m p l e Mkr tat 9 89MHz 1 1 dBm Rekes Next Peak Start 50 0kHz Center 10 05MHz Stop 20 05MHz RBW 300kHz Span 20 0MHz Sweep 500 0ms Peak Search 47 GW INSTEK GSP 730 User Manual Exam p E Mkr1at 9 89MHz n Peak Soarcis N Ref 0 0dBm Next Peak Right 1 m wee Ne eak Right Next Peak Left Peak to Start 60 0KHe Center 10 05MHz Stop 20 05MHz RBW 300kHz Span 20 0MHz Sweep 500 0ms Peak Search y Peak Search Exam p e Mkr Tat 9 89MHz n1 dBm Ref 0 0dBm Next Peak Left 4 Next Peak Start 60 0KH2 Center 10 05MHz Stop 20 09MHz RBW 300kHz Span 20 0MHz Sweep 500 0ms Peak Search Peak Table Description The Peak Table function will display up to 5 peaks The amplitude and frequency for each peak is listed Operation 1 Press 2 gt More F6 gt Peak Table F1 and turn the peak table on GW INSTEK BASIC OPERATION 2 Press Peak Sort F2 and set the sorting type
44. imply press Trace again to return to the start of the Trace menu Pressing this type of menu key will activate that function The menu key will be highlighted to show it is the active function Scroll wheel a N Numerical keypad Se O O O 00 e i A A A TA CS 00 90 A Se 0o00 V bhd Lod Z J Directional arrow keys Backspace Enter keys and unit keys Parameter values can be entered using the numeric keypad the scroll wheel and the arrow keys GW INSTEK GETTING STARTED Using the numeric keypad Back Space Using the scroll wheel Directional arrows When prompted to enter a parameter use the number keys 0 9 the decimal key and the minus key to enter a value After a value has been entered the unit keys can be used to select the units The value of the parameter is shown at the bottom of the screen as it is edited Ref 30dBm Ref 30 0dBm Edited parameter Use the backspace key to delete the last character or number entered Use the scroll wheel to alter the current value Clockwise increases the value anti clockwise decreases the value The scroll wheel is usually used for values that highly variable such as the center frequency settings Use the directional arrows to select discrete parameters or to alter values by a coarser resolution than the scroll wheel Left down decreases the value right up increases the value The directional arrows are usually u
45. ing default settings are the factory configuration settings for the spectrum analyzer Function settings Test settings Frequency Center Frequency 1 5GHz Start Frequency OHz Stop Frequency 3GHz CF Step Auto Span Span 3GHz Amplitude Reference level 30 0dBm Scale Div 10 Units dBm Autoset Amp Floor Auto Span Auto Marker Marker Off Peak Search N A Meas ACPR Off OCBW Off Limit Line H Limit Off L Limit Off Pass Fail Off BW RBW Auto Trace Trace A Clear amp Write Average Off Display 105 GW INSTEK GSP 730 User Manual Full Display Active Display line off Memory N A Preset N A Hardcopy N A Hardcopy Setup Ink Normal System N A 106 GW INSTEK APPENDIX GSP 730 Specifications The specifications apply when the GSP is powered on for at least 30 minutes to warm up to a temperature of 20 C to 30 C unless specified otherwise Frequency Frequency Range Setting Range 150kHz to 3GHz Center Frequency Setting Resolution 0 1MHz Accuracy within 50kHz frequency span 0 3GHz to 2 6GHz 20 5 C Frequency Span Setting range IMHz to 3GHz Accuracy within 3 frequency span 0 3GHz to 2 6GHz 20 5 C Resolution Bandwidth Setting Range 30KHz 100KHz 300KHz 1 MHz SSB Phase Noise 85dBc Hz typical 500kHz offset RBW 30kHz Sweep time 1 5s Span 1
46. jciacsaystpesrencoratenteaaveaayats 19 USB Driver Installation esce 20 Restoring Default Settings eee 21 CONVENTIONS ce ceccecee cece eeesceeeeeeseeeeeeeseeees 22 GW INSTEK GSP 730 User Manual GSP 730 Introduction The GSP 730 is a low cost basic spectrum analyzer The GSP 730 has all the basic features of our more advanced models but ina smaller package designed especially for education Main Features Performance 150kHz 3GHz bandwidth 100kHz resolution Features e Autoset with automatic floor level and span Marker table function Limit line testing Split window display ACPR measurement OCBW measurement Automatic resolution bandwidth mode Interface e 480x640 color LCD display On screen menu icons VGA video output RS 232C USB 2 0 Host port for data storage USB 2 0 Device port for the virtual com port communication GW INSTEK GETTING STARTED Package Contents Check the contents before using the GSP 730 Opening the box Contents e Main unit e Power cord x1 region single unit e Quick Start Guide dependent e User Manual CD e Calibration certificate GW INSTEK GSP 730 User Manual Appearance GSP 730 Front Panel LCD Display Function Menu keys Hardcopy key Keys Scroll wheel Arrow keys RF Input terminal
47. le con rbw mode gt auto GW INSTEK REMOTE CONTROL con swt Query Description Returns the sweep time in milliseconds Query Syntax con swt Return parameter lt NRf gt Example Con swt gt 1500 Display Commands con disp split upper con disp split lower con dispisplitialt con disp split f l syecresenusenenccaneganerunenunani con disp split upper Set Description Turns on the split window function and sweeps the top window Syntax con disp split upper con disp split lower Set Description Turns on the split window function and sweeps the bottom window Syntax con disp split lower con disp split alt Set Description Sweeps the upper and lower windows alternatively in the split window mode Syntax con disp split lower 101 GW INSTEK GSP 730 User Manual con disp split full Set Description Returns the spectrum analyzer to single window mode The upper window is used as the active window Syntax con disp split full Preset Commands COM PLES Sti EEEE RERE 102 con preset Set Description Loads the factory default settings This is the equivalent to pressing the Preset key Syntax con preset System Commands CONS YSISELE saagi aiii 102 con sys ser Description Returns the serial number Query syntax coni sys ser Return parameter lt string gt Returns the serial number in the following format XXXXXXXX
48. n Adjacent channel power refers to the amount of power leaked to the adjacent channel from the main channel This measurement is a ratio of the main channel power to power in the adjacent channel Example Offset 1 lt gt Offset 2 c Ch spacing K ren AE spacings To next mai channel Operation 1 Press C gt ACPR F2 and turn ACPR on Setting up the e Any other measurement mode will automatically be main channel 51 GW INSTEK GSP 730 User Manual disabled 2 The display splits into two screens The top screen shows the sweep waveform The bottom screen shows the ACPR settings and measurement results in real time e Turn ACPR off to return back to the normal mode Measurement Mkr4 at 29 92MHz 67 1 dBm Start O 0kHz Center 20 0MHz Stop 40 0MHz RBW 300kHz Span 40 0MHz Adj CH BW 2 Adj CH Offset 2 Channel setup Measurements 3 Press Channel Setup F1 and set the following Main CH BW F1 Set the bandwidth of the main channel Main CH Space F2 Specify the channel spacing Note The main channel bandwidth and space settings are shown in the setup area at the bottom of the screen not on the soft key icon Channel BW Channel space g 52 GW INSTEK BASIC OPERATION Operation 1 Setting up the adjacent channel s Note Press ADJCH Setup F3 to setup the adjacent channels Adj CH BW I F1 Sets the bandwidth of the 1st adjacent channel Adj
49. nd A GW INSTEK SAFETY INSTRUCTIONS Cleaning e Disconnect the power cord before cleaning e Usea soft cloth dampened in a solution of mild detergent and water Do not spray any liquid e Do not use chemicals containing harsh material such as benzene toluene xylene and acetone Operation e Location Indoor no direct sunlight dust free Environment almost non conductive pollution Note below e Temperature 5 C to 45 C e Humidity 90 45 C Pollution Degree EN 61010 1 2010 specifies the pollution degrees and their requirements as follows The instrument falls under degree 2 Pollution refers to addition of foreign matter solid liquid or gaseous ionized gases that may produce a reduction of dielectric strength or surface resistivity e Pollution degree 1 No pollution or only dry non conductive pollution occurs The pollution has no influence e Pollution degree 2 Normally only non conductive pollution occurs Occasionally however a temporary conductivity caused by condensation must be expected e Pollution degree 3 Conductive pollution occurs or dry non conductive pollution occurs which becomes conductive due to condensation which is expected In such conditions equipment is normally protected against exposure to direct sunlight precipitation and full wind pressure but neither temperature nor humidity is controlled Storage e Location Indoor environment e Temperature 20
50. not dispose electronic equipment as unsorted municipal waste Please use a separate collection facility or contact the supplier from which this instrument was purchased by Ee e GW INSTEK GSP 730 User Manual Safety Guidelines General e Do not place any heavy object on the Guideline instrument e Avoid severe impact or rough handling that CAUTION leads to damaging the instrument e Do not discharge static electricity to the instrument e Use only mating connectors not bare wires for the terminals e Ensure signals to the RF input do not exceed 30dBm 25V DC e Do not block the cooling fan opening e Do not disassemble the instrument unless you are qualified Measurement categories EN 61010 1 2010 specifies the measurement categories and their requirements as follows The instrument falls under category II e Measurement category IV is for measurement performed at the source of low voltage installation e Measurement category III is for measurement performed in the building installation e Measurement category II is for measurement performed on the circuits directly connected to the low voltage installation e Measurement category is for measurements performed on circuits not directly connected to Mains Power Supply AC Input voltage range 100V 240V e Frequency 50 60Hz WARNING e To avoid electrical shock connect the protective grounding conductor of the AC power cord to an earth grou
51. nt identification as a string in the following format GW INSTEK GSP 730 XXXXXXXX V VV Manufacturer GWINSTEK Model number GSP 730 Serial number XXXXXXXX Firmware version V VV Sweep Commands SLi TEP T E T E A 86 Sa A E E E O OER EOT 86 tS sssssvsnsvsnssseastassresssesesnsvsassseevtnsssvsseususvatvassapseressssavvasessaevesszeteressss 87 si Set Description Stops the sweep Example si sn Set Description Continues a stopped sweep Example sn GW INSTEK REMOTE CONTROL ts Set Description Resets the sweep and starts it once i e sweeps one time Example ts Frequency Commands Meas fred COM 55a esdaccdcaadaissnsafsactseccsoddanstetitsancasiasesdesseicscedaziveies MEAS FLEC St esses Meas freg SUP iswesdvecesesesieicdas nnan intone Set meas freq cen Description Sets or queries the center frequency Syntax meas freq cen lt freq gt Query Syntax meas freq cen Parameter lt freq gt Center frequency Return parameter lt freq gt Returns the frequency and unit Example meas freq cen 100 khz Sets the center frequency to 100kHz Query example Meas freq cen gt 100 kHz Set meas freq st Description Sets or queries the start frequency Syntax meas freq st lt freq gt Query Syntax meas freq st 87 GW INSTEK GSP 730 User Manual Parameter lt freq gt Start frequency Return parameter lt freq gt Returns the star
52. pliance should be protected by a suitably rated and approved HBC mains fuse refer to the rating information on the equipment and or user instructions for details As a guide a cable of 0 75mm should be protected by a 3A or 5A fuse Larger conductors would normally require 13A types depending on the connection method used Any exposed wiring from a cable plug or connection that is engaged in a live socket is extremely hazardous If a cable or plug is deemed hazardous turn off the mains power and remove the cable any fuses and fuse assemblies All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard a GW INSTEK GETTING STARTED G ETTING STARTED This chapter provides a brief overview of the GSP 730 the package contents instructions for first time use and an introduction to the front panel rear panel and GUI GSP 730 Introduction yssssssssssnavshassdcavioneaovenensecandcnoeecoanconens 8 Main Features wscsscssascascsinsrssessnteaveseosenses vasiens 8 Package COnmte tS actscedsiuspiantesnmtedieraacemetadden 9 AD BCA l ACG oscccracsnawannscaniansxpeseeeasssaniieeneonuaeteedunetuaataces 10 GSP 730 Front Panel 10 Rear Panel ccccccceecccceecccseecesueeeeaneceeneees 14 I lie Vaart sia aim E E 15 First Use INStructions ccccecececncsssscecceecseeeseeseeeaeaees 17 Tilting the Sana og eee eee iecreaea 17 Power UP and DOWN ccccceseeceaeeeeeneees 18 Software Update
53. properties Display Memory The memory key is used to save or recall setup trace and limit line data Memory Peeetee o Ot 11 GW INSTEK GSP 730 User Manual Preset The Preset key will restore the spectrum analyzer to the factory settings Hardcopy The hardcopy key is a quick save key that will save a screen shot of the display Hardcopy setup Configures the hardcopy options etup System The System key is used to configure the RS232 interface language update the firmware as well as other system options Power key Turns the instrument on off Scroll wheel Edit values select listed items Arrow keys amp Increment decrement values in 9 steps select listed items 12 GW INSTEK GETTING STARTED RF input terminal RF INPUT 50Q RF input port Accepts RF inputs e Maximum input 30dBm 20dBm measurable BERENE MAX e Input impedance 500 30dBm MAX e Maximum DC voltage 25V e N type female Numeric keypad The numeric o Q te es d keypad is used to c HED enter vales and O 2 a C enter Parameters Itis ad often used in O ORED conjunction with the arrow keys and scroll wheel USB A Micro SD S USB A port for saving recalling settings files to external memory 13 GW INSTEK GSP 730 User Manual Rear Panel USB B port
54. r mode to Normal 4 The display will show the marker on the trace centered by default with the marker measurement at the top of the display Maker No Frequency Amplitude 50 0MHz 39 dBm Ref 20 0dBm MEUG Start O 0KHz Center 50 0MHz Stop 100 0MHz RBW 1 MHz Span 100 0MHz Sweep 300 0ms Marker 50 0MHz 39 GW INSTEK GSP 730 User Manual Activate a Delta Marker Description Delta markers are marker pairs that measure the difference in frequency and amplitude between a reference marker and a delta marker When delta markers are activated the reference and delta marker appear at the position of the selected marker or in the center of the display if the selected marker has not yet be activated The marker measurement is located at the top of the display under the normal marker measurement Delta Markers Ref Reference marker designated as l Delta Delta marker designated as l Operation 1 Press e gt Marker F1 and select a marker number 2 Press F2 to turn the selected marker on 3 Press Mode F3 to set the mode to Delta to activate the delta marker GW INSTEK BASIC OPERATION Delta maker No Frequency Amplitude Marker Ref 20 0dBm AMkr 1 at LIMHz 43 0 dB Marker 12346 Start 45 0MHz Center 50 0MHz Stop 55 0MHz RBW 100kHz Span 10 0MHz Sweep Lisec AMarker 1 1MHz Move Marker Manually Operation 1 Press ater
55. race to assign the selected marker to If Auto is selected the selected marker is automatically assigned a trace Marker Trace Auto A B C 3 In the example below marker 1 is set to trace B Marker 1 Trace B Marker kr Tat 150 0MHz 151 dBm Ref 20 0dBm Marker Table ON OFF All Mkr Off Start 100 0MHz Center 150 0MHz Stop 200 0MHz Sweep 300 0ms Marker 150 0MHz 43 GW INSTEK GSP 730 User Manual Turn All Markers On or Off Description All markers that have been activated both normal and delta markers can be turned off at the same time with the All Mrk Off function Operation Press se gt Marker F1 gt More F6 gt All Mrk Off F3 and turn all the markers off Show Markers in Table Description The GSP 730 has a Marker Table function to show all the active markers and measurements at once Operation Press Matter gt Marker F1 gt More F6 gt Marker Table F2 and turn the marker table on The display will split into two screens The bottom half will show the Marker Table with the marker No normal reference or delta frequency and the amplitude of the marker GYINSTEK Marker Mkr Tat 20 08MHz 21 dBm Ref 20 0dBm AMkr 1 at 2 5MHz 450 dB Marker Trace Start 10 0MHz Center 20 0MHz Stop 30 0MHz RBW 300kHz Span 20 0MHz Sw 500 0ms gt Marker Marker Table GW INSTEK BASIC OPERATION Edit Markers in Marker Table
56. race color and function is shown at the bottom of the display When a trace is selected parameters can be set edited from the Trace menu Display Icons mon tA B C Z B i Trace A B C Trace Type amp Icon The type of trace used determines how the trace data is stored or manipulated before being displayed The analyzer updates each trace according to the type of trace used tA l f Z Clear amp The GSP 730 continuously Write updates the display with each sweep This is the default trace type 62 GW INSTEK BASIC OPERATION The maximum or minimum points are maintained for the tA selected trace The trace points Min Hold are updated each sweep if new maximum or minimum points are found tB amp Peak Hold ie View will hold the selected View f trace and stop updating the trace data for the selected trace Pressing View F4 will display the trace data that was cleared using the Blank F5 key Blank Clears the selected trace from the display and stores trace data The trace data can be restored by pressing View F4 Operation 1 Press te gt Trace F1 and choose a trace Trace A B C 2 Select the trace type Clear amp Write F2 Peak Hold F3 View F4 Blank F5 More F6 gt Min Hold F 1 AN Traces B and C are set to Blank by default Note 63 GW INSTEK GSP 730 User Manual Trace Math Description Performs trace math from two traces A B and stores the results
57. re updating the software please check the software version 1 Press Sse gt Information F4 2 The system version is displayed on the SW Ver F4 icon M Update software 1 Place the update file MAIN1 BIN into the root directory of a USB flash drive 2 Insert the USB flash drive into the USB port on the front panel 3 Press Se gt Update From USB Flash F5 4 Press Update Now F3 to execute the update process e When the message Programmed Successful is displayed the software has successfully completed the update procedure 19 GW INSTEK GSP 730 User Manual 5 Reboot the system when the update procedure has finished by cycling the power button 6 Check the software version again to confirm the update procedure AN The upgrade process may take a few minutes Note USB Driver Installation Description If the type B USB port on the rear panel is to be used for remote control then the USB driver must be installed The USB driver is located in the CD that accompanied this manual Driver installation 1 Ensure the GSP 730 is turned on 2 Connect the USB cable from the PC o gt 0O to the rear panel USB B port 3 Windows will automatically detect the GSP 730 as a new device 4 Follow the instructions to locate the GSP 730 driver on the accompanying CD and install the driver 5 To see if the driver has been successfully installed you can check to see if the GSP 730
58. sed for values that are of a discrete nature such as selecting a memory location 25 GW INSTEK GSP 730 User Manual Basic OPERATION FREQUENCY Settings isi sscvsssisisscssacacccssacessecsscesesaceccuscscasivess 28 Center Frequency scs coiseisentes asevagienaestasess 28 Start and Stop Frequency wisicusuesaninas 29 Center Frequency Step ee eeeeee eee eee es 30 Spam Setting Sarenenst on aeann R R ADERI 31 Spaen a EEN EEE EEEE E a 31 Full S pafiocrenee r 32 Zero SPA A visinesdiiseisiedusacsaebesaecaananaiiuiaesees 32 LASt S Panter sericeressaisesise E A EER 33 Amplitude Settings inccuiancdcnnonadnnunnnuauiestin 34 Reference Level cccccceeeeseeeeeeeeeeeeeeees 34 Amplitude UNIS sscasuariuativtinenasecaiedn 35 SCRE DiVersi aa 35 AUTOSE esisereraro seriyi Kerenene anim EE saaa aks 36 USING AUTOS cicssecisevctersccriccccteceseesdecsesestes 36 Limiting the Autoset Vertical Search Range37 Limiting the Autoset Horizontal Search RANG Ou ccs scises tag Sevan E rE 37 ELA A EE E E E S E 38 Activating a Marker seseseseeeees 39 Move Marker to Trace ccccccsseeceeseeeeeeees 43 Show Markers in Table osasse 44 Peak Search ccccceccccsseececseeceaseeeeusecseneees 46 Peak Tabl Ga sscsvecceetsiccncsccieleets tsneavancioasiaeaiaecs 48 26 GW INSTEK BASIC OPERATION WE ASUNSINE Grocer clasiiexcd iaidarciarcddacamasaceeaeareceserertaaiameeaieees 50 Channel Analysis Overview nesses 50 Limit
59. settings for the inactive screen will be retained for the next time that split spectrum view is used If the spectrum analyzer was in the Alternate mode then the upper sweep settings will be returned GW INSTEK BASIC OPERATION Save Recall Files The GSP 730 can save and recall setup data trace data and limit line data to and from internal memory There are five memory locations for each save file type These files cannot be saved to USB The Hardcopy key can be used to save image files to a USB flash drive Save Recall Setup Description Setup data contains all the data necessary to recall the state of the GSP 730 to known state Setup data contains the following data Center frequency Start frequency Stop frequency Step frequency Ref Level Scale Units RBW Save 1 To save the current settings press gt Setup To F1 and choose a memory location to save to with the arrow keys Setup To 1 5 2 Press Setup To F1 again to execute the save Recall 1 To recall a setup press gt Setup From F2 and choose a memory location to recall from with the arrow keys Setup From 1 5 2 Press Setup From F2 again to execute the recall 71 GW INSTEK GSP 730 User Manual Save Recall Trace Data Description The trace data can be saved recalled for any of the A B or C traces to from one of 5 pre set internal memory locations The trace data cannot be recalled or saved to USB When saving or r
60. span settings Operation 1 Press s _ gt Last Span F4 33 GW INSTEK GSP 730 User Manual Amplitude Settings The vertical display scale is defined by the reference level amplitude attenuation scale and external gain loss Reference Level Description The reference level defines the absolute level of the amplitude on the top graticule in voltage or power Operation 1 Press ritud gt Ref Level F1 and enter the reference level amplitude Range 20dBm 20dBm Resolution 10dBm Display Ref Level reading Amplitude Start 500 0kHz Stop LSM Span OMH Sweep 1 5se1 Ref 20 0dBm 34 GW INSTEK BASIC OPERATION Amplitude Units Description The amplitude units can be set from dBm dBmvV or dBuV 1 Press arritua gt Units F3 to change the amplitude units Units dBm dBmV dBuV Scale Div Description Sets the logarithmic units for the vertical divisions Operation 1 Press mpiwse gt Scale F2 repeatedly to select the vertical division units Scale Range 10 5 2 1 Displ ay Amplitude Ref Level 20 0dBm om Wa Scale 35 GW INSTEK GSP 730 User Manual Autoset The Autoset function searches the peak signals and picks the signal peak with the maximum amplitude and then shows it in the display Using Autoset Operation 1 Press gt Autoset F1 Autoset Range Amplitude Over the full amplitude range Span Over the full span range
61. sssssseesssserees 98 teas IMNE O Nens E EEEa 99 teas antt CRO i AT 99 Set meas Imtline passfail Description Turns the Pass Fail test on off or queries its state 98 GW INSTEK REMOTE CONTROL Syntax meas Imtline passfail on off Query Syntax meas mtline passfail Parameter on Turns the pass fail test on off Turns the pass faill test off Return parameter 0 Fail 1 Pass Query example meas Imtline passfail gt 0 meas lmtline on Set Description Turns the limit lines on Syntax meas Imtline on meas Imtline off Set Description Turns the limit lines off Syntax meas Imtline off BW Commands COMM DW AULO ixessssezesseszesesssezessssacaehsseactcistiesssse E COMMDWP seececesesseeeseeeeees CONMDW MAN wo eee con tbw mode ee OTIS WY Le a A E AREA 101 con rbw auto Set Description Sets the RBW to Auto Syntax con rbw auto 99 GW INSTEK GSP 730 User Manual con rbw Description Returns the RBW Query Syntax con rbw Return parameter lt NRI gt 0 30kHz 1 100kHz 2 300kHz 3 IMHz Example con rbw gt con rbw man Set Description Sets the RBW for manual mode Syntax con rbw man 0 1 2 3 Parameter lt NR1 gt 1 100kHz 2 300kHz 3 1MHz Example con rbw man 1 Sets the RBW to 100kHz con rbw mode Description Returns the RBW mode Query Syntax con rbw mode Return parameter 2Uto Auto mode manual Manual mode Examp
62. t frequency and unit Example meas freq st 100 mhz Sets the start frequency to IOOMHz Query Example meas freq st gt 100000 kHz Set meas freq stp Description Sets or queries the stop frequency Syntax meas freq stp lt freq gt Query Syntax meas freq stp Parameter lt freq gt Stop frequency Return parameter lt freq gt Returns the stop frequency and unit Example meas freq stp 100 mhz Sets the stop frequency to 100MHz Query Example meas freq stp gt 100000 kHz Span Commands raat RHS PAN PASET 88 meas span full cssssssesssssssesesnsesssstassssstnsesestssesessssee 89 Set meas span Description Sets or queries the frequency span Syntax meas span lt freq gt Query Syntax meas span GW INSTEK REMOTE CONTROL Parameter lt freq gt Span frequency range Return parameter lt freq gt Returns the span and unit Example meas span 10 mhz Sets the span to IOMHz Query Example meas span gt 10000 0 kHz meas span full Set Description Sets the span to the full span Syntax meas span full Amplitude Commands HIG AG HOT It REEE E E 89 HUNG AG reien E nuniaeteenatted 89 Set meas refl unit Description Sets the reference level unit Syntax meas refl unit 1 2 3 Query Syntax meas refl unit Parameter 1 dBm Return parameter 2 dBmV 3 dBuV Query Example _ Meas refl unit gt The reference level units are dBm Set meas
63. t is shown as a blue line e The L Limit is shown as a pink line High limit line Limit Line Limit High Low Start 10 0MHz RBW 1 MHz Frequency Low Line 57 GW INSTEK GSP 730 User Manual Creating a Limit Point by Point Description Create a limit manually point by point Ten manually selected frequency points can be used to create the upper or lower limit line Operation 1 Press tmtte gt Limit F1 and select the limit line you wish to edit Limit High Low 2 Press Edit Table F2 and turn the edit table on The GSP 730 is split into two screens The top screen shows the trace and the selected limit line high or low and the bottom screen shows the limit line table Spectrum display Limit Line Ref 20 0d8m Limit High Low Start 10 0MHz RBW 1 MHz Span 100 0MHz Upper Limit Line Editing Table No Frequency Limit Line Table All 10 points will be displayed in a limit line table at the bottom of the display By default each point is set to OdBm 3 Use the arrow keys to move the cursor to the 58 GW INSTEK BASIC OPERATION frequency column of the desired point Cursor 4 Enter the new frequency and amplitude of the point using the keypad and the unit keys 5 Repeat steps 3 5 for the remaining points A maximum of ten points 6 To delete the selected point press Delete F3 7 To delete all the points press Delete All F4 e Th

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