MDSR-S/CAT User Manual V1
Contents
1. status cfg demodulation mode of the mode USB LSB LSB CW USB CW MDSR LP frequency 11700 to 15500Hz LIF filter HP frequency 8500 to 12300Hz LIF filter filter slope 0 2 0 25 0 3 slope selection autosetup off USB LSB lock_to_TXVR radio auto mode setup by CAT reverse mode off on mode reverse USB LSB Audio cfg audio imput normal reversed sets audio input channel audio output normal reversed sets audio output channel audio boost 20 0 20 LIF input boost by 20dB Modulation off on Mic signal processing statusRX cfg RX frequency 100000 to 30000000 frequency in Hz synth Sate RX TX OFF Synth audio state txvalues cfg RF Gain Value 0 100 RF output gain setting Mic Gain Value 0 100 Mic output gain setting HP frequency 100 500 Mic high pass filter setting LP frequency 1500 3000 Mic low pass filter setting Compression 0 100 compression setting RS232 cfg port 1 to 15 port number baud rate 4800 38400 speed of RS232 connection parity None Even Odd parity of error correction data bits 6 to 9 length of data word stop bits 1 13 2 length of stop bit buffer size 4to 16 receive buffer size flow control None Hardware Xon Xoff handshaking control setting PTT control OMNIRIG COM ARDUINO NONE PTT control interface autosetup BOYH RTS DTR COM line selector txvalues cfg TX on off on off RX o2. De Modulation Demodulation Software Radio FILES File Originator Destinator calibration cfg MDSR MDSR calall cfg MDSR MDSR SA usbcal cfg MDSR MDSR Isbcal cfg MDSR MDSR cwusbcal cfg MDSR MDSR cwlsbcal cfg MDSR MDSR status cfg MDSR MDSR SA statusRX cfg OmniRig SA txvalues cfg MDSR MDSR transmitter cfg MDSR OmniRig RS232 cfg MDSR SA FreqSets cfg SA OmniRig Descriptor Value s Description calibration cfg frequency offset 500 to 500 LIF frequency correction in Hz Display offset 7 to 7 Display offset frequency in kHz IF Frequency 10 to 17 IF frequency in kHz usbcal cfg frequency offset 500 to 500 LIF frequency correction in Hz Display offset 7 to 7 Display offset frequency in kHz IF Frequency 10 to 17 IF frequency in kHz Isbcal cfg frequency offset 500 to 500 LIF frequency correction in Hz Display offset 7 to 7 Display offset frequency in kHz IF Frequency 10 to 17 IF frequency in kHz cwusbcal cfg frequency offset 500 to 500 LIF frequency correction in Hz Display offset 7 to 7 Display offset frequency in kHz IF Frequency 10 to 17 IF frequency in kHz cwlsbcal cfg frequency offset 500 to 500 LIF frequency correction in Hz Display offset 7 to 7 Display offset frequency in kHz IF Frequency 10 to 17 IF frequency in kHz Modulation Demodulation Software Radio
3. Spectrum Filter Pass BFO Line Oscilloscope Display Gain bar mode Window ine Eper canes MDSR SA CAT 2 1 VON6MU Exgine MDSR V1 0J Rig FT 817 E Start Stop BERIS PERRE EEEE PRE EREE SR AE EE NS AN i RAER TP WT Ey ary ae Pa oP PE Se F Enter Setup Start Pause gt T RX TX Waterfall Mode Frequency Curser Curser delta Dominant RX TX State Frequency frequency Frequency Functionality of the MDSR SA user interface Intro The MDSR SA was designed as the companion software to the MDSR synthesizer engine It provides a spectral display of the signal 12kHz IF present on the line audio port of the computer s sound card It also provides a time domain oscilloscope and has a multi functional display for the RX TX frequency RX TX status of the radio mode of radio a delta frequency and a dominant frequency display which is referenced to the actual RX frequency Modulation Demodulation Software Radio FUNCTIONS Spectrum Analysis In the spectrum analysis window the resulting spectrum of the input signal either line input or microphone input of the sound card is displayed The spectrum display can be customized to provide the best viewing results for the user For the best resolution the recording sample rate has to be set to the highest possible setting MDSR SA Settings e Spectrum Mode either normal no filter window Okc 22kc display range Full Spectrum BFO line and filter window Okc 22kc range
4. 1 Select the tool icon and then the Configure OmniRig button and the Omni Rig Setting window will appear Important MDSR SA does NOT work without OmniRig installed Setting the OmniRig properties for the CAT interface Omni Rig Settings x RIG 1 RIG 2 About Rig type chooses the transceiver to be controlled from the drop down menu Ri FT 817 Lis Port selects the COM port the transceiver is physically com 5 connected to Baud Rate setting has to match the setting in the transceiver Data Bits defines the length of the data word sent to the transceiver and can be obtained from the user manual Parity defines the error correction used The setting can be obtained from the user manual Stop bits defines the length of the data sent after each data word transmission and can be obtained from the user manual RTS DTR are only used in special cases and should be left as default Poll int ms selects the time interval between each query to obtain the transceiver status and Timeout ms selects the time until OmniRig returns a No COM condition in case the transceiver does not respond to the data query Both settings are in mS Modulation Demodulation Software Radio About OmniRig OmniRig is a COM component for transceiver receiver CAT control developed by Alex Shovkoplyas VE3NEA Homepage http www dxatlas com OmniRig Download http Awww dxatlas com OmniRig Files OmniRig zip Trouble
5. 5 dollar a disk principle is allowed AND UNALTERED By using the program you accept these conditions NO GUARANTEE It is your responsibility not to take any action that might breach any local regulations regarding the purpose for which you use this program Thank you for using the MDSR and please tell your friends about this project All the best The DADP MDSR Team
6. Modulation Demodulation Software Radio MDSR S CAT User Manual V1 By ON6MU Guy Roels 2010 11 ON6MU Aalst Belgium DADP J Engine Alex Schwarz 2010 11 VE7DXW Vancouver Canada Beta tester Alex VE7DXW OmniRig Alex Shovkoplyas VE3NEA MDSR homepage http users skynet be myspace mdsr MDSR DADP support group http groups yahoo com group mdsradio ON6MU homepage http Awww gsl net on6mu OMNIRIG homepage http www dxatlas com OmniRig FREEWARE Modulation Demodulation Software Radio MDSR V1 1J MDSR SA 2 0 OmniRig Intro The MDSR SA spectrum analyzer has been designed by Guy Roels ON6MU primarily for use with the MDSR J modulator demodulator application designed by Alex Schwarz VE7DXW It uses OmniRig to communicate with the transceiver and MDSR engine OmniRig is a universal CAT interface and can communicate with 48 different makes and models of transceivers OmniRig was designed by Alex Shovkoplyas VE3NEA This software package integrates the computer with the HF transceiver and creates a sophisticated and easy to use interface and it provides functionality otherwise only found in high end transceivers This de modulator is designed to work with a single ended 12kHz IF signal provided to the mic or line input of a soundcard Unlike all other SDR software this program will work with the LIF2010 PCB or both single ended down converters described on the website http users skynet be myspace
7. Shooting OmniRig issues If OmniRig is installed outside the MDSR J Windows installation program files must be copied into the MDSR J engine folder MDSR by default OmniRig and the Java Runtime Environment have to be installed both are needed and this is done automatically following the setup procedure If MDSR SA crashes or shows the error Class not registered then download OmniRig and reinstall it MDSR SA shows RigOffLine when the rig is not responding A frequency will be shown on the multifunction toolbar If the message N A is showing then OmniRig is not configured properly Calibrate and Customize Calibrate and Customize pe Timing Noma Spectrum base Sensitivity 99 y Oscilloscope Sensitivity 20 4 S meter Sensitivity 43 z Resolution Normal Waterfall Clarity 0 Color Waterfall Speed 1 Recording sample rate 441 00 User Color Settings bie Audio Input Settings 56 Audio Output Settings CAT OmniRig Configuration F Change user defined frequency Rese t Total Reset to Defaults Vv fo In order to open the Calibrate and Customize window the F9 function key can be pressed or the wrench button can be pressed and then select the selection item Calibration and Customization Scan Frequency Timing sets the decay time of the spectral display Specirum base Sensitivity affects the size and the noise floor line o
8. Zoomed Spectrum BFO line and filter window 3kc range Stay on Top this selection keeps the SA application on top of all other apps Spectrum Bars switches spectral display from line mode to bar mode Oscilloscope turns the oscilloscope on or off Remember Screen Size keeps the current size of the window even if application is exited and then restarted e Absolute Screen Labels displays the actual frequency as received in the soundcard relative is referenced from the BFO line e Dominant Frequency Detection measures and displays the frequency of the highest peak in the spectrum If unchecked this field will not be visible in the multifunctional toolbar e Edit User Colors allows for customization of the spectral display window In the Calibrate and Customize menu the Scan Frequency timing which affects the rise and fall time of the spectrum can be selected The Spectrum and Base sensitivity affects the size and the noise floor line of the spectrum Values from 1 99 are acceptable 99 is the most sensitive setting Basic Oscilloscope The Basic Oscilloscope measures and displays the V t domain present on the line or microphone input of the soundcard This measurement can be turned off via the menu function In the Calibrate and Customize menu the Oscilloscope sensitivity values are 1 to 20 20 being most sensitive Waterfall The Waterfall is a different way of displaying the spectrum with the advantage of having a time segment of t
9. es and Labels setup window Set your rig to any frequency Clicking on the wrench icon and selecting Set TRX frequency and then Enter Frequency a frequency can manually be typed in and then by pressing the OK button the transceiver is updated via the CAT interface Predefined Frequencies Setup Clicking on the frequency field opens up a drop down menu and allows the user to quickly set the transceiver to a predefined frequency Up to ten different frequencies can be predefined Setup Pre defined Frequencies and Labels X Pre defined Frequencies and Label Setu In this setup window the predefined frequencies DURS oe mets can be edited to match the user s preferences om 1810000 Hz The frequencies have to be entered in Hz 80m 3729000 Hz resolution Clicking the checkmark button closes the window saving the changes The no parking 40m 7000000 Hz sign closes the window without saving the Bm tst C lt Ci i S S 10000000 Hz changes made to the frequency information 20m 14000000 Hz fm ie000000 He CET fam zaes0000 He fim 2ao00000 He F2 canne 1424500 Hz Y Shortcut Keys MDSR SA e F2 saves the spectrum display as bmp in the MDSR SA BMP folder F5 saves the spectrum display to the clipart F9 calibrates and customizes F11 runs DADP engine F12 closes DADP engine Modulation Demodulation Software Radio e left right arrow keys 10Hz e up down arrow
10. f the spectrum Values from 1 99 are acceptable 99 is the most sensitive setting Oscilloscope Sensitivity affects the size y axis of the displayed image values are 1 to 20 20 being most sensitive S Meter Sensitivity allows calibrating the S meter bar graph on the right side of the MDSR window Acceptable values are between 0 1 to 49 49 being most sensitive Resolution sets the base resolution of the spectral display The resolution can be lowered if there is an issue with performance Waterfall Clarity can be adjusted between 0 99 Waterfall Speed set property between 1 10 Recording sample rate should be left at 44100 User Color Settings opens up the color selection window Place the mouse over the graphics to change the color of the specific items Audio Input Settings opens up the Windows record control settings Audio Output Settings opens up the Windows play control settings Modulation Demodulation Software Radio CAT OmniRig Configuration opens up the OmniRig configuration window Change User defined frequency opens up the user defined frequencies window Total Rest to Defaults resets all the custom settings of the MDSR SA to the setup default values use with care Set your rig to any band Clicking on the wrench icon and selecting Set TRX frequency and then selecting the band listing will set the transceiver via the CAT interface to the frequencies defined in the Pre defined Frequenci
11. he spectrum displayed In a normal spectrum display the y axis is the intensity of the signal in a waterfall display the y axis is a time domain The intensity of the signal is displayed in the variance of the gray or color scale The latest spectral line is added on the top and the lines are moved down This creates a waterfall effect This type of display can be used to decode CW or display digital modulation schemes like PSK In the Calibrate and Customize menu the Waterfall Clarity can be adjusted between 0 99 The base color can be selected in either one of the basic colors red green blue grayscale or color variance The waterfall speed can be set between 1 10 Modulation Demodulation Software Radio Dominant frequency detection The dominant frequency detection indicates the most prominent strongest spectral line and displays its frequency corrected to the actual incoming RF signal This field can be turned off if it is not needed Left clicking on the displayed value will set the transceiver to the currently displayed value This can be used to set the radio to a peak without using the frequency dial of the radio Easy one button start pause The FFT Fast Fourier Transformation that changes the signal from time domain to frequency domain is very processor intensive If the computer is being used for a different task and the processor time is needed the spectrum analyzer can be paused The SA window will freeze and the pr
12. keys 1Kc e PgUp PgDn keys 1Mc MDSR e Ctrl S starts the MDSR synth engine Ctrl U changes mode to USB Ctrl L changes mode to LSB Ctrl W changes mode to CW USB Ctrl E exits the MDSR software and closes window Ctrl R opens the filter selection window Ctrl T opens the TX setup window Mouse Click shortcuts e right click in spectrum display sets the modulation mode e aleft click in spectrum display sets the TRX frequency according to the cursor position in the display RESTORE DEFAULTS Restore defaults can be done in the program by going to Calibration and Customization then choose Total Reset to Defaults If the program fails to respond gives an error or crashes before it starts reset the MDSR SA by running it with a command line parameter MDSR SA Properties wd e Add the parameter RESET on the command General Shortcut Compatibility Security line prompt i e Create a reset shortcut right click MDSR SA ail MDSR SA icon then choose properties and select the Shortcut tab Press the space bar and then Target ype Application type RESET after the Target path Target location MDSR C MDSR MDSR SA exe RESET Target C Program Files MDSR MDSR SA exeRESET e Press OK and then double click the shortcut to execute the reset Start in C Program Files MDSR e Restore the shortcut to the original and restart Shortout key None the MDSR SA Bun Normal window Comment
13. mdsr The advantage of using an existing transceiver is that today s commercial amateur radios are very rugged and they also have a very good IP3 intercept point All the other low priced SDR hardware is very prone to cross modulation in strong signal conditions Now with the additional modulator the MDSR software can upgrade older shortwave transceivers to the latest SDR interface with all the DSP features only found in high end units The BiLIF interface takes advantage of the sturdiness of commercial radios and the MDSR provides the graphic user interface and signal processing An existing radio can be upgraded and enhanced without a lot of expense Changes and updates in the MDSR SA software release Summary The MDSR Team has been hard at work developing the next step of the DADP The MDSR synthesizer provides a full RX TX capable DSP engine and utilizes the soundcard to convert the digital audio stream into an analog 12kHz IF output The MDSR SA is the companion software and was derived from the DADP SA The development of the original CAT interface was discontinued and instead the OmniRig CAT interface was implemented for greater functionality and compatibility with 48 transceivers Modulation Demodulation Software Radio The MDSR software offers the following features MDSR SA spectrum analyzer and function display MDSR OmniRi Spectrum analysis Basic oscilloscope Highlighted filter band Multi function displa
14. ocessor can perform other tasks If the processor speed of the computer has trouble with the FFT process fewer spectral lines can be selected in the Calibration and Customization setup By selecting a lower resolution less processor time is needed and the MDSR program can coexist with other software programs Record the audio to a wav file WAY Player LA Record the audio to wav file allows the user to record the MDSRSA_11 03 05_ 20 46 16 wav incoming and outgoing MDSRSA_11 04 03 20 45 47 wav audio to a wav tile The ICEA default recording directory 4 Program Files WAV is located in the SJMDSR MDSR folder but can be changed to any available directory on the hard drive or mapped network drive By pressing the record on off button on the SA M as Enr window the wav file is sl 7 2 Jager automatically created stating the date and time the recording took place By pressing the floppy icon and then selecting the Open Play Recordings menu the MDSR SA WAV Player can be opened It allows the file to be played back and if the Key Rig when Playing checkbox is selected it will key the radio at the same time rebroadcasting the recoded wav file Run and or close the DADP J engine as the MDSR SA starts closes The MDSR SA allows for tight integration of the MDSR synth engine In the Automation menu selection the behavior of the MDSR application is set up When the Run MDSR Engine is selected the MDSR SA will run
15. r TX state of transceiver FreqSets ini Ham Band 160 Ham Band Frequency Recall Frequency 1800 2000 Frequency Setting Ham Band 80 Ham Band Frequency Recall Frequency 3500 4000 Frequency Setting Ham Band 40 Ham Band Frequency Recall Frequency 7000 7300 Frequency Setting Modulation Demodulation Software Radio Ham Band Frequency Ham Band Frequency Ham Band Frequency Ham Band Frequency Ham Band Frequency example Frequency LEGAL MDSR SA is NOT public domain but it is free for non commercial amateur radio use There is no registration and no payment The authors keep the copyright and all other rights Permission to sell MDSR SA for profit is prohibited Please contact the authors for permission Any support you can provide for MDSR projects and modules is greatly appreciated If you decide to make a contribution for the MDSR Project then please use the PayPal account at http www qsl net on6mu It is forbidden to e Modify or patch the program or in any way disassemble or change anything Distribute the program without all the matching files Distribute the program under another name other than MDSR SA Only the extension ARJ LZH ZIP and others may vary Ask for money other than the real costs of transport or postage Asking for money for the program part program or copy of the program is strictly forbidden under this concept the
16. the application and bring up the graphic user interface of the MDSR When Start MDSR engine is selected the audio engine is started automatically at startup The closing of the MDSR SA and the MDSR can also be linked together by selecting Close MDSR engine Modulation Demodulation Software Radio Save spectrum display The current spectral display can be saved to a BMP file by pressing the F2 function key The files are saved in the BMP directory under the MDSR folder This feature can be used to record certain signal conditions and have the measurement available for later reference Pressing the F5 key copies the image to the clipboard so that it can be copied into other applications Switch between USB LSB CW when using DADP engine There are several ways to use the MDSR SA interface to change the mode of the MDSR Right or left clicking on the current mode label will bring up a menu selection that will change the MDSR s mode Left clicking of the spectrum will set the radio to the curser frequency right clicking on the opposite side of the BFO line will change the mode Configure OmniRig from within MDSR SA The OmniRig application is configured from within the MDSR SA The menu item OmniRig Configuration amp Status will bring up the OmniRig setup interface OmniRig allows for the configuration of two transceivers but for MDSR only the Rig 1 is configured and therefore the radio button selection always has to stay selected for Rig
17. y delta frequency dominant frequency RX frequency mode RX TX Spectral line or bar function Waterfall mode Audio recording and playback function Favorite frequency short cuts and auto update of the transceiver A fast variety of customization utilities colors bar or line display resolution zoom average time and more Graphic capture of spectrum window Rate of integration with the MDSR is customizable via menu setup a fully RX TX capable USB LSB CW synthesizer engine with user interface Synthesized TX modulator SSB modulation can be turned off to allow for post modulation processing only Audio synthesizer and voice compressor Synthesized carrier for easy antenna tuning Normal or reversed USB LSB filter function Lock to TXCR a feature that allows the synchronization of the mode to the transceiver with the MDSR s mode Frequency calibrator which allows for a wide range of LO frequencies A wide range of selectable BFO frequencies 9kHz to 18kHz Additional auto notch filter for better beat suppression User interface supporting multiple independent graphic windows g CAT support for multiple transceivers Support of 48 preconfigured transceivers Easy setup using the OmniRig interface Second PTT COM port for support of transceivers without CAT PTT command PTT set through RTS DTR or Arduino PCB with special C routine avail from the group Modulation Demodulation Software Radio The MDSR SA interface
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