Issue B Page 1 of 8 G4KWT November 2003 RADARC SE550
Contents
1. channel from scan same as see P 3 Bank COMM Indicates which memory banks are empty STATUS MENU ZVEI buf STAT Shows last tone code received N B not supported Tone code STAT 2 RX VCO STAT DAC 0 TX VCO STAT DAC 0 Issue B Page 8of 8 G4KWT November 20032. characters is assigned to each key Repeated pressing of the key cycles through the available characters This can also be done with the F and buttons The cursor is moved using the and buttons The button will give a space if at the end of the line of text and if over a character will erase it and cause the following characters to shift back Like a DEL key The keys are assigned as follows O i lt gt en V 2ABCabeaA 4a 3 DE Fdefe 14 GHIg hii fs 5 J KLj kl 5 6 MN OmnoO 6 7 7 PQRS pgqr fe 8 TUVtuvU ad 3 9 WX YZwxryz 0 0 SPACE amp DISPLAY LAMPS OAR FAW is lee Memory Scanning Rx Tone verride Chomel locked squelch active out Error light See Hardware Menu status sub menu Issue B Page Sof 8 Display auto dimming sensor Transmitting Squelch Open Indicates when 2 function is pressed in Menu mode allowing menu item to be changed G4KWT November 2003 THE MENU SELECTIONS These are displayed by pressing followed by Scroll through the different menus submenus and multiple menu options using and F To change a menu or submenu option or to select the submenu press To come out of the menu or submenu press s5 N B Several of the menu submenu functions are not apparently supported in this version of firmware but have been included for completeness Shift MENU Set the repeater shift Default 01 600 000kHz Tx limi
3. RADARC SE550 PA4DEN FIRMWARE UPGRADE USER MANUAL Specification Frequency Range 68 88 MHz general coverage Direct frequency entry and 7 banks of 100 user programmable channels Channel Spacing 5KHz 6 25KHz 10KHz 12 5KHz 15KHz 18 75KHz 20KHz or 25KHz Mode Frequency or Phase Modulation Antenna BNC 50 TX Power 2W 2 5W 12 5W or 25W Deviation 2 5kHz nominal 4kHz peak DC Power Nominal 13 2V 10 8 15 6V RX approx 0 5A TX 6A 25W This document is based on information kindly supplied by Stephen Tompsett of the Rugby Amateur Transmitting Society RATS and from PA4DEN s website N B DTMF and CTCSS functions are not implemented in this firmware The radio will however transmit user defined tone signals ZVEI tones Basic Frequency Selection The transceiver has three frequency modes VFO Memory amp Favourite Channel VFO Mode In this mode the display shows frequency on the top line and the selected memory bank at bottom right The desired frequency is entered using the numeric keypad The frequency entry will auto complete dependant on the selected step size e g with 12 5kHz steps selected 70 45MHz is entered as 7 0 4 5 and with 5kHz steps selected 70 45MHz is entered as 7 0 4 5 O Note No decimal point Memory Mode In this mode the display shows the Memory Channel Number at top left followed by the channel frequency or alpha tag The selected memory bank is shown at bottom right There are 700 mem
4. and buttons The display indicates the selected power level 25W approx 12 5W approx 2 5W approx No Bars 2W approx Allows the Squelch Rx Sensitivity to be changed Adjustment is with the F and buttons The display indicates the selected Squelch and Rx Sensitivity level No Bars Maximum Sensitivity Squelch Level increased by about 5dB Rx Sensitivity reduced by about 20dB Squelch Level increased and Rx Sensitivity reduced Activate MENU selections See P 6 to 8 Activate STATUS MENU See P 8 Toggle display of Memory Channel or Favourite Channel Alpha Tag Allows selection of VFO frequency step size Select the required step size with the F and buttons Available step sizes are 5KHz 6 25KHz 10KHz 12 5KHz 15KHz 18 75KHz 20KHz amp 25KHz Memory channel lockout from scan Set tones and call with tone signalling ZVEI tones Select repeater shift Toggles or None Set Tone Squelch codes N B only the Transmit code is supported Delete or Store Favourite channel See P 4 Delete or Store Memory channel See P 4 Page 30f 8 G4KWT November 2003 MEMORY OPERATION To programme a memory channel Select the required Memory Bank using Get into VFO Mode 5 if not there already Select the required frequency and Shift if required Press then s Select a channel number using the numeric keypad or up down arrows An arrow on the display to the
5. is code Not supported Step USER Acc 5 This sets the acceleration of the Up and Down buttons The longer the key is pressed the faster the frequency will change Keys USER Repeat Sets whether buttons auto repeat or not when pressed Options are Repeat Only Once Settings USER Clear memory Pushing changes display to lt CLEAR gt A Further push clears all memories Hardware MENU Submenu gt IF HARD Select 1 IF 21 855MHz or 20 945MHz LP filters HARD Select 20kHz raster or 2OkHz raster Issue B Page 7of 8 G4KWT November 2003 Status MENU Give diagnose When the red error light is on above the zs button this menu gives error messages viewable by repeated pushing of the button The red error light appears to be always on when the Rx is tuned below 72MHz and this menu option gives an Rx VCO Limit error message even though the radio appears to work OK Common MENU Submenu gt TX Power COMM Allows adjustment of RF power level same as 1 See P 3 Squelch COMM Allows adjustment of squelch and Rx sensitivity same as See P 3 Tone sql COMM Toggles tone squelch ON OFF for RX amp TX N B RX not supported Rx Code COMM Set code for RX tone squelch N B not supported Tx Code COMM Set code transmitted when Tone sgl set to ON for TX above View name COMM Toggle display to indicate either frequency or alpha tag same as 6 see P 3 Lock out COMM Lockout selected memory
6. left of the channel number indicates that the channel has already been programmed and will be overwritten e Press e Enter an alpha tag for the channel if required using the numeric keypad See P 5 Press to complete the channel programming gt e To clear a memory channel Select the memory channel to be cleared Press and again To scan the memories within a bank Select the bank to scan using the button Press to start scanning Press it again to stop scanning Use F and to change the scan direction Memory Channel lockout from scan Select the memory channel to be locked out Press then 4 to lockout skip the channel when scanning Repeat the above to unlock FAVOURITE CHANNEL To programme the favourite channel Select VFO Mode Select the required frequency and Shift if required Press ana again Enter an alpha tag if required using the numeric keypad See P 5 Press p to complete favourite channel programming gt e 6 To clear the favourite channel e Select the favourite channel with Press and again VFO SCAN Select VFO Mode Start and Stop VFO Scan at selected step size using e Change direction of scan using and 2 Issue B Page 4o0f 8 G4KWT November 2003 ENTERING TEXT FOR ALPHA TAGS Text is entered using the numeric keypad in the same way as on a mobile phone A series of
7. ory channels arranged as 7 banks of 100 Each channel can have its own alpha tag of up to 23 characters Note Memory Mode will only appear if 1 or more of the memories in the selected bank has been programmed Favourite Channel Mode In this mode the display shows A at top left followed by the frequency or alpha tag The selected memory bank is shown at bottom right Issue B Page lof 8 G4KWT November 2003 KEYPAD OVERVIEW DOA Aa eo EI MAIN FUNCTIONS Rx Volume Up Rx Volume Down Speaker is fully off at minimum Power ON OFF Q Squelch Override in Rx 1750Hz tone when pressed in Tx DOWN 1MHz or 10 Memory Channels UP 1MHz or 10 Memory Channels Select Memory Bank DOWN 1Frequency Step or 1Memory Channel UP 1 Frequency Step or 1 memory Channel Exit Sub Menu when using Second Function 4 SCAN VFO or currently selected Memory Bank Reverse Shift Second Function of next key pressed See P 3 Toggle between VFO mode and Memory Channel mode Toggle in and out of Favourite Channel Mode Tone Squelch ON OFF toggles Rx Only Tx only Both and Off N B Only Tx is Supported k le e e pal el Ee fo ty E 1 0 Le e Issue B Page 2of 8 G4KWT November 2003 SECOND FUNCTIONS After first pressing the Second function button 4 a gt E el al J gt gt l e l Issue B Allows the Transmitter RF Power Output to be changed The Power is adjusted with the
8. t MENU Set the Tx timeout timer value Default N one Scan Mode MENU Sets how the radio reacts when receiving a signal while scanning Wait silence Waits for squelch to close before continuing scan Scan and stop Does not re start scanning automatically when squelch closes W ait Pause for 5 seconds then continue scanning Audio MENU Submenu gt Rx mode AUDI Select FM or PM mode of Rx operation Default FM TX mode AUDI Select FM or PM mode of Tx operation Default FM Datakiller AUDI Suppress ZVEI tones Default On N B Not supported Key beep AUDI Turn On Off keypad beeps Default On Key beep AUDI Volume Adjust volume of key beeps Default Rogerbeep AUDI Turn On Off transmitted beep at end of each transmission Default On DTMF tones AUDI Set the length of the DT MF tones Default 100mS N B Not supported ZVEI tones AUDI Set the length of the ZVEI tones Default 70mS Issue B Page 60f 8 G4KWT November 2003 Calltutor MENU S ubmenu gt This allows the setting up of some sort of beacon Not supported Calltutor CALL Sets function Off On On Hold TX Callsign CALL Allows text entry Calltutor CALL After TX 10S Time is adjustable Calltutor CALL Every 270S Time is adjustable User MENU Submenu gt My number USER Allows entry of personal 5 tone code of the user Radio gives alarm when receiving th
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