1. Manuals
  2. Brands
  3. OM POWER Manuals
  4. Amplifier
  5. OM2000A+
  6. Manual

OM POWER OM2000A+ Manual

Shortwave plus 50 mhz power amplifier
Hide thumbs Also See for OM2000A+:
Table of Contents

Advertisement

Quick Links

Download this manual
MADE IN SLOVAKIA
OM2000A+
SHORTWAVE PLUS 50 MHz
POWER AMPLIFIER
WWW.OM-POWER.COM
OM Power, s.r.o. 93030 Báč 126,
SLOVAKIA
Contact : +421 905 321 410
e-mail
: om-power@om-power.com
e-mail
: om-power@om-power.com
1

Advertisement

Table of Contents
loading

Related Manuals for OM POWER OM2000A+

Summary of Contents for OM POWER OM2000A+

  • Page 1 MADE IN SLOVAKIA OM2000A+ SHORTWAVE PLUS 50 MHz POWER AMPLIFIER WWW.OM-POWER.COM OM Power, s.r.o. 93030 Báč 126, SLOVAKIA Contact : +421 905 321 410 e-mail : om-power@om-power.com e-mail : om-power@om-power.com...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. GENERAL INFORMATION ..............1.1. Introduction …………………………………………………………………. 1.2. Specification …………………………………………………………………. 1.2.1. Parameters …………………………………………………………………. 1.2.2. Protection Circuits …………………………………………………………………. 1.2.3. Features …………………………………………………………………. 1.2.4. The Advantages of OM2000A+ ………………………………………………… 2. SAFETY INSTRUCTIONS …………………………………………………………………. 3. GENERAL DESCRIPTION …………………………………………………………………. 3.1. HF part ………………………………………………………………….
  • Page 3 6.3. Tube Replacement …………………………………………………………………. 6.4. Cleaning …………………………………………………………………. 7. APPENDIX …………………………………………………………………. 7.1. Primary AC selection …………………………………………………………………. 7.2. Removing the HV Transformer …………………………………………………….. 7.3. Controlling OM200A+ with FLEX Radio Series 6xxx …………………………. 7.4. OM2000A+ Remote Control …………………………………………………………. 7.5. Remote Control using own public IP Address ........7.5.1.

  • Page 4: General Information

    1. GENERAL INFORMATION 1.1. Introduction he OM Power model OM2000A+ is designed for all short wave amateur bands from 1.8 to 29.7 MHz (including WARC bands) plus 50 MHz and all modes. It is equipped with a ceramic tetrode FU-728F. 1.2.

  • Page 5: Protection Circuits

    1.2.2. Protection Circuits There are several protection circuits used in the amplifier. They are activated when one or more of next parameters exceed defined values or some unwanted occasion occurs.  VSWR too high  Anode current too high  Anode voltage error ...

  • Page 6: Safety Instructions

    SAFETY INSTRUCTIONS DANGEROUS HIGH VOLTAGE INSIDE! The power amplifier is using high voltage up to 3200V DC, which is very dangerous for human life! Read next safety instructions carefully first, before you will start to install and operate power amplifier! NEVER VIOLATE NEXT RULES! NEVER ALLOW CHILDREN to play around PA or to touch power amplifier or connected cables in working condition, or to push anything into the case holes!

  • Page 7: General Description

    CAUTION The amplifier must be installed in such a way that free flow of hot air from the tube is allowed. The amplifier must not be installed in a constrained surrounding (i.e. tight shelves etc.). During long time operation ventilation grid can reach high temperature. Do not touch it! The amplifier must be properly grounded during operation During operation the amplifier must be installed in such a way that the rear side remains accessible.
  • Page 8 The output of the amplifier is a Pi-L circuit. The ceramic capacitor for TUNE and LOAD are divided. This enables the amplifier to be tuned exactly and makes it possible to easily return to the previously set positions after band changes.

  • Page 9: Power Supply

    3.2. Power Supply Power amplifier is using one 3 KVA toroidal transformer. A soft start is provided using relays and resistors (placed on the switch-ON board). The high voltage is made by combining 4 x 575V AC (total abt. 3200V DC) @ 1.2A. Each has its own rectifier and filter.

  • Page 10: Grounding

    4.1. Grounding The amplifier has to be grounded properly! Connect the screw on the rear panel of the amplifier to your local grounding system with a copper cable; use a cross-section of 4 mm at least. Connect your transceiver to the same grounding system of your shack carefully! Use minimum length cables and make certain that the connections are both physically and electrically sound.

  • Page 11: Control Cable

    4.3. Control Cable Control cable maintains TX / RX switching of the PA (TX GND). The cable is shielded. On the side of the power amplifier a CINCH-socket is used. On the side of your transceiver you have to use a socket suitable for this transceiver.

  • Page 12: Operation

    OPERATION Before switching PA on, make sure that amplifier is grounded, antenna or dummy load is connected, and line cord is putted to the outlet. Be sure you selected AC input by 7.1. Do not turn PA on for at least 2 hours after unpacking it and locating in its operating location. Especially when amplifier is moved from a cold place to a warm one because not visible condensation may develop, and this could result in damage to the high voltage circuits.

  • Page 13: Om2000A+ Control

    OPR/STBY Short press for switching betwen STBY and OPERATION mode. ON/OFF Long press (1 sec.) for switching the PA ON (tube heating first), 2 seconds for PA OFF. Do NOT use the green button for switching the PA OFF as first! Every time use ON/OFF button as first to give chance for cooling the tube and inside area of the PA.
  • Page 14 Also it provides an overview of the last 20 Type of supported TCVR and warnings and faults: working frequency are visible on the display. Touch FAULTS. AUTO LED is ON. Type of supported TCVR and working frequency are visible on the Press EXIT to go back to the home screen.
  • Page 15 Screen shows settings possibilities for CAT, ANTENNA, DISPLAY, NETWORK SETTING, EBS, Type of supported TCVR and BLOWER and other infos. working Scroll to CAT SETTINGS (up or down) and touch frequency are visible on the SET. display. AUTO LED is ON. Scroll to your TCVR family (up or down) and Type of supported TCVR and select bit rate (left or right), then press SET.
  • Page 16 You selected IC7800 addr.6AH and 19200 Bd. Press SET to write to the memory, then press Type of supported TCVR and EXIT to go back to the SETTINGS possibilities. working “SET OTHER ADDRESS” means that you must frequency are visible on the add here a new type of used ICOM TCVR which display.
  • Page 17 Next SETTINGS position is for display Type of supported TCVR and parameters. First choose the background working color. Scroll on it and choose the color frequency are visible on the (left/right). display. Press SAVE twice, then scroll to OWN CALL. AUTO LED is ON.
  • Page 18 Use next lines and set brightness and sound Type of supported TCVR and working volume (use up/down and left/right). Confirm frequency are visible on the display. with SAVE. AUTO LED is ON. Press NETWORK SETTING and then press Type of supported TCVR and working ENTER.
  • Page 19 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. Electronic Bias Settings (EBS) is one of significant feature of the power amplifier. It allows to set low plate current after pressing the PTT regardless of whether you have CW or SSB mode, until RF signal is no present at the input.
  • Page 20 In the next line you can define working mode of the blower. In the first case speed depends Type of supported TCVR and on the temperature (TEMP), during PTT speed working increased to maximum, ALLWAYS means maximum speed all the time during PA frequency are visible on the operation (recommended for DIGI modes).

  • Page 21: Preparing For Operation

    5.3. Preparing for operation In STBY the amplifier is in bypass-mode and your transceiver is directly connected to the antenna. Maximum allowed power in bypass mode is 200 Watts! Passing 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.
  • Page 22 Another display 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 to Type of supported TCVR and working display working frequency or active band frequency are visible on the display.
  • Page 23 We are in the settings mode again, but with Type of supported TCVR and working little difference in INFO part. frequency are visible on the display. Scroll to INFO and press SET. AUTO LED is ON. Type of supported TCVR and working New button is visible –...
  • Page 24 This means not programmable setting of the primary voltage. It is just information for the processor, which protects the permitted limits ( up or down) for a given value of the primary voltage (protection circuit). MEAS pressing shows this screen. Instantaneous values of the basic parameters Type of supported TCVR and working are displayed.
  • Page 25 Type of supported TCVR and working Touch BARG2 in the next step, then the same frequency are visible on the display. way BARG3. AUTO LED is ON. Type of supported TCVR and working Press EXIT to go back to the Menu display, frequency are visible on the display.
  • Page 26 We selected last 20 WARNINGS to show. Type of supported TCVR and working frequency are visible on the display. Press EXIT and go to the SET EBS1 AUTO and press SET. AUTO LED is ON. PA will automatically set 20mA of EBS. Type of supported TCVR and working You can try to do this manually, too.
  • Page 27 Or another value of EBS2 by MANUAL Set. Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. Scroll to CALIBRATION Ip, Is and press SET. Calibration will be done automatically. Type of supported TCVR and working Go to the bottom line.

  • Page 28: Operation Mode

    5.4. Operation mode Before switching to operation mode, check all connections between PA and TCVR. We are back in the Main display, bar graphs Type of supported TCVR and working were defined, antennas were preprogrammed, frequency are visible on the display. CAT was set.
  • Page 29 M-TUNE means entry to the manual tuning mode. It allows fine tuning of the PA, especially in the case when antenna impedance is different from real 50 Ohms. For proper adjustment we need to show Screen current (at least). Press M-TUNE. New screen is visible. Slides on the left and right side represent both variable capacitors. Adjustment process: Move TUNE left or right until maximum of FWD power reached.
  • Page 30 Output power is 1507W, reflected power reached abt. 4W and screen current is abt. -8 Type of supported TCVR and working frequency are visible on the display. If your antenna has different impedance than real 50 Ohms then is necessary to start the M- TUNE procedure to optimize PA adjustment AUTO LED is ON.
  • Page 31  When Screen current exceeds +20mA, use right LOAD button to decrease current to abt. 0 mA.  Increase the input power until you reach the used maximum output power. Again watch the Screen current. If exceeds +20mA, decrease it using right LOAD button. ...

  • Page 32: Maintenance

    MAINTENANCE 6.1. Indication of Fault Conditions If a fault condition appears during the operation of the amplifier, the safety circuits of OM2000A+ will react. There are several warning or fault messages possible to appear on the display, when some of the protection will be activated.
  • Page 33 Never try to change or move any part inside the amplifier except of 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.com Array Solutions...

  • Page 34: Fuse Replacement

    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 professionally qualified person! Internal fuses are located mainly on the SWITCH-on board (next to the HV transformer).
  • Page 35 Side view on the opened OM2000A+ HV Transformer AC Selector Remove the upper lid first. On the right side of the PA, next to the HV transformer there are two PCBs mounted. On the left upper side of the front (Switch-ON) board connector J6 is located. flat screwdriver or finger and press carefully the white stick to release contact and move upper end of the white jumper to the proper position, if necessary...

  • Page 36: Removing The Hv Transformer

    7.2. Removing HV Transformer For simpler and easier transport of the PA, HV transformer can be removed and taken separately. This distributes the weight of the PA (24 kg) about half and half. Follow next steps to do it. 1. Remove upper lid from the PA (use Phillips screwdriver bit PH1 !) . 2.
  • Page 37 – a hardware COM port in your PC or an USB to serial port adapter. Connect the chosen COM port and the transceiver port ( TCVR DB9 )to the OM Power amplifier with a null modem serial cable (both ends of the cable with a female DB-9 connector and pins 2 and 3 are crossed).
  • Page 38 Flex Radio 6xxx series connection using USB output Connect USB from Flexradio directly to TCVR port on OM2000A+ using USB – serial port adapter and null modem serial cable (both ends of the cable with a female DB-9 connectors (pins 2 and 3 are crossed). Activate the smartSDR and choose Settings / USB Cables (USB adapter to serial connect to USB port of Flexradio).

  • Page 39: Om2000A+ Remote Control

    AUTO LED is ON. 7.4. OM2000A+ Remote Control The OM Power team developed special software which allows control the PA OM2000A+ remotely. Download it from the official OM Power website http://www.om-power.com/downloads. First unzip the downloaded file, then open software.
  • Page 40  To select different screens  Antenna retuning if parameters changed Have a look on the next pictures and follow instructions to setup remote control properly. Connection setting. Set up TCP/IP address and port...
  • Page 41 Connect / disconnect to OM2000A+ View last 20 PA faults Anennas Settings...
  • Page 42 There are three possible screen selectable Minimal view To go back from Minimal view click with right mouse button and close it. Normal view will appear back. Normal view...
  • Page 43 Advanced view Fine tune screen. It is possible to retune the PA remotely (if antenna parameters changed, for example), too. Proceed the same way than with local control (page 28).

  • Page 44: Remote Control Using Own Public Ip Address

    7.5. Remote Control using own public IP address 7.5.1 Changing OM2000A+ connection settings Connect LAN connector on OM2000A+ to PC with ethernet cable. Open up a WEB browser and enter the OM2000A+ current IP address (default is 192.168.1.211). An authentication window will show up. Leave the fields empty and click OK.

  • Page 45: Setting Up In The Remote Software

    You can change the OM2000A+ Port number too, if you need / want in the Connection menu. When done, click When done, click Apply Settings in menu. 7.5.2 Setting up in the Remote software In the Remote Control software open Settings and enter the IP Address and Port number that you set in point 7.5.1.

  • Page 46: Remote Control Without Own Ip Address, Behind A Router

    7.5.3 Remote Control without own IP Address, behind a router If you need to change the OM2000A+ connection setings for some reason, use point 7.5.1 writen above. Change router´s settings Open up a WEB browser and enter the routers´s internal IP Address ( usually 192.168.1.1) Type of supported TCVR and working frequency are visible on the display.

  • Page 47: Om2000A+ Firmware Upgrade

    AUTO LED is ON. 7.6. OM2000A+ firmware upgrade Download firmware upgade software and latest firmware file for OM2000A+ from the official OM Power website http://www.om-power.com/downloads. Store it to OM2000A folder in your PC. Use serial null modem cable and connect TCVR port on OM2000A+ rear panel with COM port on the PC.
  • Page 48 Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. Select SETTINGS and choose COM port you want to use. Baud rate should be 115200. Close the window. Type of supported TCVR and working frequency are visible on the display.
  • Page 49 Select the Firmware tab and click on LOAD BIN Choose OM2000A+ Vxxx.bin file in the Type of supported TCVR and working OM2000A folder. frequency are visible on the display. AUTO LED is ON. Switch ON power amplifier using mains switch. Type of supported TCVR and working Press SETTINGS.
  • Page 50 Choose INFO and press SHOW. Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. Press UPGRADE. Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. When you see this screen, go to PC software and press button SEND TO LINE.
  • Page 51 Press SEND TO LINE. Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. Press LOAD on OM2000A+ to start Type of supported TCVR and loading. working frequency are visible on the display. AUTO LED is ON. You can see loading progress on the bar graph Type of supported TCVR and...
  • Page 52 You will see this screen after firmware was successfully loaded. Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. It is very important: Do not do any action. Wait until this screen disappears! Usually, it takes about 30 seconds but sometimes it might take a little bit longer.

  • Page 53: Icom Connection With Om2000A

    7.7. ICOM connection with OM2000A+...

  • Page 54: Yaesu Plus Bpf Plus Ant Switch Connection With Om2000A

    7.8. Yaesu plus BPF plus ANT Switch connection with OM2000A+...

  • Page 55: Control Panel Connectors Pin-Out

    7.9. Control panel (rear side) connectors pin-out ANT / BPF Connector - DB15 female TCVR connector DB 9 male RS232 connection with TCVR. For CAT communication you need connect pin 2 RX-D, pin 3 TX-D and pin 5 GROUND...
  • Page 56 CI-V connector Use CI-V connection for communication with ICOM type transceiver. Signal CI-V is connected to the Tip. PC connector DB 9 female RS232 connection to the computer. For CAT communication you need connect pin 2 TX-D, pin 3 RX-D and pin 5 GROUND KEY IN –...
  • Page 57 LAN connector Use for connection to the LAN or WAN network. CONTROL connector D-sub 15 female - GROUND - KEY OUT - ouput signal PTT ( maximum switching of 30V / 50mA input signal PTT – switching voltage / current 5V / 2mA - KEY IN - CI-V CI-V input for Icom CAT.
  • Page 58 2 - ANT data C - output BCD code - bit 2 for antenna switching 3 - ANT data B -- output BCD code - bit 1 for antenna switching 4 - ANT data A - output BCD code - bit 0 for antenna switching 5 - Not connected 6 - GND 7 - GND...

  • Page 59: Block Diagram Of The Om2000A+ Power Amplifier

    7.10. Block Diagram of the OM2000A+ Power Amplifier...

  • Page 60: Troubleshooting

    7.11 Troubleshooting The OM2000A+ power amplifier contains several protection circuits, which checked operation. In the case when some of parameters exceeds normal level, WARNING appears in the LAST EVENS window with yelllow back colour. If some of parameters exceeds critical level, FAULT is activated and the PA automatically switch to STBY mode.
  • Page 61 Plate voltage error Check plate power supply High voltage supply fault. Check fuses on HV board. Grid voltage is low Check grid power supply Low voltage on the grid. Check fuse F4 on SW ON board. Check fuse F5 on HV supply board and fuse F1 on the Screen voltage error Check screen power supply screen board.
  • Page 62 After finish the PA is ready for operation. Type of supported TCVR and working frequency are visible on the display. AUTO LED is ON. Important notice: Perform Factory reset unless it is really necessary, because subsequently you must recover all of personalized settings, mainly CAT communication with TCVR, antenna switch settings etc.

Table of Contents