OM POWER OM4001A, Manual

Page 1: ...1 MADE IN SLOVAKIA WWW OM POWER COM OM Power s r o 93030 Báč126 SLOVAKIA Contact 421 905 321 410 e mail om power om power com e mail om power om power com OM4001A SHORTWAVE POWER AMPLIFIER ...

Page 2: ...ENERAL DESCRIPTION 7 3 1 HF Compartment 7 3 2 Power Supply 9 3 3 Safety Devices 9 4 INSTALLATION 9 4 1 Grounding 10 4 2 Coaxial Cable 10 4 3 Control Cable 11 4 4 Cooling 11 5 OPERATION 12 5 1 OM4001A Front Panel 12 5 2 OM4001A Control 13 5 3 Preparing for operation 20 5 4 Operation mode 26 6 MAINTENANCE 30 6 1 Indication of Fault Conditions 30 6 2 Fuse Replacement 31 6 3 Tube Replacement 32 6 4 Cl...

Page 3: ...anging OM4001A connection settings 40 7 4 2 Setting up in the Remote software 41 7 4 3 Remote Control without own IP Address behind a router 42 7 5 OM4001A firmware upgrade 43 7 6 Icom connection with OM4001A 47 7 7 Yaesu plus BPF plus ANT Switch connection with OM4001A 48 7 8 Control panel connectors pin out 49 7 9 Block Diagram of the OM4001A Power Amplifier 53 7 10 Troubleshooting 54 ...

Page 4: ...s Input Power Usually 40 to 60W for full Output Power Input Impedance 50 Ohm VSWR 1 5 1 Power Gain 17 dB Output Impedance 50 Ohm unbalanced Maximum Output SWR 3 1 SWR protection Automatic switching to STBY when reflected power is 350W or higher Intermodulation distortion 32dB below nominal output Suppression of harmonics 50 dBc Tubes 2 x FU 728F Ceramic tetrode Cooler Centrifugal blower Axial blow...

Page 5: ...mmable working modes of the centrifugal blower turbine axial blower Full QSK with silent relay Many operational parameters to display Easy transport due to detachable HV transformer The smallest and lightest 4000 W Power Amplifier on the market 1 2 4 The Advantages of OM40001A Full compatibility with ICOM ELECRAFT KENWOOD TEN TEC ORION YAESU Icom transceive protocol using by MicroHAM devices CI V ...

Page 6: ...TO SHORT OR BYPASS safety switch under upper lid The OM4001A amplifier should not be used in a WET or HUMID environment or be exposed to RAINFALL Do not turn the amplifier ON without having connected the ANTENNA or properly rated DUMMY LOAD A hazardous HF voltage may build up on the antenna connector after turning the amplifier on with no antenna or dummy load connected Before removing the upper l...

Page 7: ...er is to take proper actions to mitigate this disturbance Read this manual carefully Fallow all of instructions during installation and operation to avoid damage to the amplifier not covered by manufacturer s warranty Do not attempt to perform any change of hardware or software 3 GENERAL DESCRIPTION 3 1 HF Compartment his amplifier is using a par of ceramic tetrode FU 728F in a grounded cathode ci...

Page 8: ... are seperate This enables the amplifier to be tuned exactly and makes it possible to easily return to the previously set positions after band changes Top view on the opened OM4001A Tetrode FU728F Blower Switch ON Board Output Pi L Circuit Tuning Capacitor Front Subpanel Power Supply Board ...

Page 9: ...setting is 230 VAC If the AC voltage in your network is 220 or 240 Volts you need to set the correct transformer tap before first starting the PA See part 7 1 for more information Other primary voltage is possible on request for example 200V 50 60 Hz for Japan 3 3 Safety Devices Control and monitoring circuits ensure control and safety during malfunctions of the PA These are placed on the Control ...

Page 10: ...d With poor grounding you may risk damaging your equipment have problems with TVI BCI or possible distortion of your transmitted signal 4 2 Coaxial Cable The output of the transceiver is to be connected to the input of the amplifier via RG58 or similar 50 Ohm cable For the connection between the power amplifier and the antenna RG213 or similar coaxial cable suited for high power is recommended SO ...

Page 11: ...your TCVR set the delay to 15ms please The amplifier is equipped with safety devices which ensure that the output relay is not switched under power mistakenly hot switching KEY IN RCA Phono Input signal PTT switching voltage current 5V 2mA KEY OUT RCA Phono Output signal PTT maximum switching of 30V 50mA See section 7 9 for Control and ANT BPF connector PIN OUT Be sure that your power system is co...

Page 12: ...densation may develop This condition could result in damage to the high voltage circuits We do not recommend changing antennas during a transmission Hot switching When you decide to have a short operating break We recommend placing the amplifier to the standby mode rather than switch it off 5 1 OM4001A Front Panel Front panel of the OM4001A is almost empty Containing only the touch TFT display plu...

Page 13: ... touch screen is active for some information and control settings while the PA is still OFF BAND Touch the left side of BAND button to go down touch the right site to go up The band information is displayed above the button ANTENNA Transmitting antenna choice Functional ONLY when the antenna switch is programmed and antennas are defined see page 17 This antenna feature allows switching between ant...

Page 14: ...rious menu settings for CAT NO CAT ANTENNA DISPLAY EBS CLEAR user settings for one or all bands BLOWER mode and other INFO Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON ...

Page 15: ...detects transmit frequency from the input signal With the input signal frequency changing the PA automatically reacts and tunes itself to optimal output parameters If NO CAT is used we recommend using BAND DATA BCD information for much faster band changing If you choose YAESU or ICOM NEW after SET pressing you will go to deeper level which allows you to select specific type of TCVR ee the followin...

Page 16: ... green squares To disable some square select port up down touch SET for antenna name and then select band left right Press SET Four types of antennas for four different bands were disabled Black square means disabled combination Press EXIT to go back to SETTINGS menu BCD code 4 bits is used for automatic antenna and BPF switching see Antenna BPF connector on the Control panel rear side of the PA S...

Page 17: ...ress ENT Use next lines and set brightness and sound volume use up down and left right Confirm with SAVE Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working...

Page 18: ...on Next lines are for EBS Electronic Bias Setting ON OFF and for EBS level selection We recommend EBS ON See next comment for more details Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON ...

Page 19: ...are not speaking loud enough some syllables can be cut off In such a case you should turn OFF the EBS The next two settings allow deletion of the manual user settings of the amplifier tunings for a single band or for all bands Settings in all segments will return to the factory default values for 50 Ohms In the next line you can define working mode of the blower In the first mode speed depends on ...

Page 20: ...ximum allowed power in bypass mode is 200 Watts The bypass RF power is displayed if PA is in standby mode To turn PA ON press ON OFF button on the front panel black one and hold it abt 1 second PA will start tube heating It will take 180 seconds Turning PA ON is possible ONLY from the home screen If you have other display active press EXIT more times to go back to the home screen These same functi...

Page 21: ...nd SEGMENT buttons In this mode exact frequency will be read from RF input and PA will set up on it automatically COM LOST appears if CAT was defined but TCVR is not connected with the PA CAT cable See the following pictures FREQ button has two functions It allows displaying the working frequency or active band segment NOTE If CAT is used the working frequency will be read directly from the TCVR U...

Page 22: ...O and press SHOW A new button is visible SET Umain Press it Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LE...

Page 23: ...w constant monitoring Three different bar graphs can be defined using BARG1 BARG2 or BARG3 buttons Press BARG1 Green graph may show one of the user selectable 8 monitored parameters Select the wanted parameter from the list at the bottom of the screen and press SAVE NOTE Follow these steps to populate BARG2 and BARG3 as desired Type of supported TCVR and working frequency are visible on the displa...

Page 24: ...ally set 20mA on the front and back tube separately When finished successfully you will see SET EBS1 AUTO OK on the screen Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supporte...

Page 25: ...ture allows user to switch OFF the SWR This feature allows the user to switch OFF the SWR protection We recommend to set it ON SWR protection circuit will stay active max allowed SWR is 3 1 If OFF is selected higher SWR is allowed but reflected power is measured If it exceeds 350W transmit will be blocked Press EXIT Type of supported TCVR and working frequency are visible on the display AUTO LED i...

Page 26: ... the light indicator on the touch Screen has changed to OPERATE Press MENU Now try to press PTT foot switch for example We are now in TRANSMIT mode without RF Note the new TRANSMIT light indicator on the touch screen We also have a new M TUNE button here Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible o...

Page 27: ... the 0 to 40mA range At that time maximum efficiency and optimal linearity are achieved This applies to each power application It is not necessary to retune the PA if we decrease the output power The PA stays in linear mode with slightly lower efficiency If we increase the output power retuning is necessary only if Ig2 exceeds 60mA Press SAVE for writing values to the memory and press EXIT NOTE Re...

Page 28: ...nnot deliver the full power 4000W or some of the protection circuits may be automatically activated In such cases we recommend doing a manual tuning M TUNE The best indication of proper PA tuning is the Screen Current In the properly tuned PA this should be within 0 to 40mA at full output power M TUNE Tuning procedure Press M TUNE button If CAT is active the TCVR will automatically tune itself to ...

Page 29: ...output power and the PA Screen current is inside 0 40mA then press the SAVE button Notice 1 If the tuning process takes more than 1 minute allow for a short break to prevent temperature overloading of the PA Notice 2 If you use the PA with the output power adjusted lower than the maximum settings Screen current can take negative values There is no need to readjust the PA it is still working in the...

Page 30: ...on See the table above for warning and fault conditions When a fault condition occurs during the tuning or operation of the amplifier the safety circuits will block transmitting The amplifier stays in OPER mode After approx 1 sec the control circuits will automatically switch the amplifier back to the transmitting mode If the problem persists the safety circuit will react again and the appropriate...

Page 31: ...ide the amplifier except the tube or fuses Substitution of parts may void intrinsic safety Manufacturer s contacts OM POWER s r o 930 30 Báč 126 SLOVAKIA Email om power om power co 6 2 Fuse Replacement The user is allowed to change mains fuses 6 3 x 32mm accessible from the rear panel only In the case of fuse fuses interruption inside the power amplifier exchange can be carried out only by profess...

Page 32: ...procedure must be done 6 4 Cleaning To prevent damage to the amplifier surface and plastic components do not use aggressive chemicals for cleaning Do not open the amplifier for cleaning Outer surface cleaning may be safely accomplished by using a piece of soft cotton cloth moistured with clean water or window cleaner 7 APPENDIX 7 1 Primary AC voltage selection Primary section of the HV transformer...

Page 33: ...ounted On the right upper side is Switch ON board where AC selector is located There are AC selector for each transformer The blue wire one side of primary winding is conected to N pole Wire marked with proper voltage connect to L pole AC voltage is marked at every black terminals Type of supported TCVR and working frequency are visible on the display AUTO LED is ON ...

Page 34: ...o possible methods to connect the Flex Radio series 6xxx to the OM4001A Using the SmartSDR CAT program Using the USB connector at Flex 6xxx Flex Radio 6xxx series connection using SmartSDR CAT Choose the control port in the SmartSDR CAT window that you will use to control the power amplifier It must be an existing serial port a hardware COM port in your PC or an USB to serial port adapter Connect ...

Page 35: ...and a null modem serial cable both ends of the cable have a female DB 9 connectors pins 2 and 3 are crossed NOTE A USB adapter equipped with a genuine FTDI chip set is a must Knock off FTDI chip sets do not work properly Now connect the DB9 end of the null modem cable FTDI adapter to the TCVR port on the OM4001A Activate Smart SDR and from the Flex SSDR main screen choose Settings then USB Cables ...

Page 36: ... software which allows controlling the PA OM4001A remotely Download it from the official OM Power website http www om power com downloads The software allows the following controls Switch the PA ON and OFF Switch between STBY and OPERATE Switch between preprogrammed antennas Read and reset the last 20 warnings and fault messages Manual fine tuning of the PA Tune and Load To check most operating pa...

Page 37: ...37 Connection setting Set up TCP IP address and port Connect disconnect to OM4001A ...

Page 38: ...38 View last 20 PA faults Anennas Settings Screen selections Minimal view NOTE To return to the normal view from the minimal view just right click with your mouse ...

Page 39: ...39 Normal view Advanced view Fine tune screen It is possible to retune the PA TUNE and LOAD remotely See page 31 ...

Page 40: ...owser and enter the OM4001A current IP address default is 192 168 1 222 An authentication window will show up Leave the fields empty and click OK Open the Network menu and change the IP address Subnet mask Default Gateway and DNS Server settings to the ones given by the internet provider When done click OK Type of supported TCVR and working frequency are visible on the display AUTO LED is ON ...

Page 41: ...d click Apply Settings in the main Menu 7 4 2 Setting up in the Remote software In the Remote Control software open the Manager Settings and enter the IP Address and Port number that you set in point 7 5 1 Press enter when done Now you are ready to work with the OM4001A over the internet Type of supported TCVR and working frequency are visible on the display AUTO LED is ON ...

Page 42: ...rewall Settings depends on router software can be called Forwarding Port Forwarding or something similar As Server IP enter the OM4001A IP Address 192 168 1 222 if you haven t changed it or the one you changed to in point 7 5 1 Private port should be 10001 in default or the one you changed to in point 7 5 1 Some routers don t have separate Public Port settings Enter an available port number usuall...

Page 43: ... or Public Port if separate from the port forwarding page Now you are ready to work with OM4001A over the internet 7 5 OM4001A firmware upgrade Download the firmware upgrade software and latest firmware file for the OM4001A from the official OM Power website http www om power com downloads Store it to OM4001A folder created on your PC NOTE Use a serial null modem cable and connect the TCVR port on...

Page 44: ...w Select the Firmware tab and click on the LOAD BIN button Choose OM4001A Vxxx bin file in the OM4001A folder Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON ...

Page 45: ...go to the PC and the PIC Loader software and press button the SEND TO LINE button Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible ...

Page 46: ... disappears At the end you will return to the main screen of OM4001A Switch PA OFF disconnect the TCVR serial cable and you are ready to use the OM4001A with the new firmware Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are visible on the display AUTO LED is ON Type of supported TCVR and working frequency are vi...

Page 47: ...47 7 6 ICOM connection with OM4001A AC 1 GND OUT LAN COM port RS 232 PC to ANT ANT2 ANT1 SEND REMOTE TRX ICOM REAR VIEW OM4001A PC TCVR CI V IN KEY ANT BPF CONTROL INPUT OUTPUT F2 F1 AC 2 ...

Page 48: ... with OM4001A AC 1 OM6BPF BCD decoder GND OUT LAN REAR VIEW OM4001A PC TCVR CI V IN KEY ANT BPF CONTROL INPUT OUTPUT F2 F1 AC 2 ANT switch Bandpass filter OUTPUT INPUT TX GND BAND DATA CAT COM port RS 232 PC ANT ANT2 ANT1 SEND RS 232 FT1000MP FT9000 ...

Page 49: ...pin out TCVR connector DB 9 male RS232 connection with TCVR For CAT communication connect pin 2 RX D pin 3 TX D and pin 5 GROUND CI V connector Use CI V connection for communication with ICOM type transceiver Signal CI V is connected to the Tip ...

Page 50: ... CAT communication connect pin 2 TX D pin 3 RX D and pin 5 GROUND KEY IN RCA connector Input signal PTT switching voltage current 5V 2mA KEY OUT RCA connector Output signal PTT maximum switching of 30V 50mA LAN connector Use for connection to the LAN or WAN network ...

Page 51: ... bit 3 Pin 9 GROUND Pin 10 CI V SW connect to Ground if you use CI V input on pin 4 Not used for CI V with Jack 3 5mm Pin 11 IC band data Icom Band data input Band data information from ICOM TCVR Pin 12 INHIBIT Inhibit output for TCVR 12V 2mA inhibit transmit 0 V if transmit is allowed Pin 13 No connect Pin 14 No connect Pin 15 No connect ANT BPF Connector D sub 15 male Pin 1 ANT data D output BCD...

Page 52: ...put BCD Yaesu BAND data compatibile code Use for automatic bandpass filter OM6BPF Pin 13 Not connected Pin 14 GND Pin 15 12V 100mA the same as pin 8 OM2000A can address up to 10 antenna port see antenna BCD code table below D C B A Logic value Antenna port 0 0 0 0 0 UNDEFINED 0 0 0 1 1 ANT 1 0 0 1 0 2 ANT 2 0 0 1 1 3 ANT 3 0 1 0 0 4 ANT 4 0 1 0 1 5 ANT 5 0 1 1 0 6 ANT 6 0 1 1 1 7 ANT 7 1 0 0 0 8 A...

Page 53: ...3 3 3 3 3 J5 CONTROL BOARD DISPLAY J4 J3 J2 J14 J10 J9 KEY IN KEY OUT LOAD TUNE J12 Ext bl K2 K3 Kl 8 Kl 7 K1 Kl 3 Kl 4 Kl 2 Kl 1 K1 J5 J8 TR2 TR1 AC24V AC2 AC1 J9 J6 J1 Cover SW OM 4001A Block diagram Fuse Blower SW ON BOARD HV SUPPLY OUTPUT AC 2 AC 1 INPUT PWR METER SCREEN BOARD INPUT BOARD 2 3 2 1 2 1 2 1 7 5 4 3 2 X2 FU728f 2 1 1 2 7 5 4 3 2 X1 FU728f 1 2 2 1 2 1 2 1 1 4 5 3 1 2 1 2 2 1 2 1 2 ...

Page 54: ...cted Check antenna switch configuration If you want to use an antenna with higher SWR this SWR protection can be switched off page 25 But reflected power will stay checked max 350W Power In is too high Reduce input power Check amplifier tuning PA input is too high decrease it If maximum output power is not achievable check plate voltage and PA tuning Low output power tune Tune mistake Retune your ...

Page 55: ...t from the HV supply caused the HARD FAULT then protection is activated and the PA is automatically switched OFF Check HV circuits blocking capacitors and the tube itself Heating voltage error Set up proper transformer voltage selector This error is usually due to improper setting of the primary voltage on the transformer page 35 In normal condition Uh readings should be 9V 0 3V Cooling error Chec...

Page 56: ... you are sure you want a full factory reset press YES After the FACTORY RESET completes the PA is ready for operation Important notice Perform a Factory Reset only if absolutely necessary to clear abnormal behaviour because personalized settings mainly CAT communication with TCVR antenna switch settings and any USER settings must be re input Type of supported TCVR and working frequency are visible...