background image

22

Previous pictures they show couple of different kinds of visual display during the same test.
This test gave us result of power gain 20.2 dB in class AB.

If all looks ok, you can increase RF power from the transceiver

slowly

 and check important

parameters of PA. Do not exceed the output power of 1000 watts in CW operation mode and
about 800 watts in SSB, AM, FM and digi  operation mode even if more is reachable.

NOTE

We recommend using the maximum output power of 800 watts to maintain good linearity of
output signal in SSB or AM mode.

CAUTION

Never use CW mode in the PA, if this is driven by SSB signal, otherwise strong and
unpleasant intermodulation distortion occurs!

Содержание OM1002

Страница 1: ...Instruction Manual OM1002 Solid State 145 MHz Power Amplifier OM POWER s r o 930 30 B 126 SLOVAKIA E mail om power om power com...

Страница 2: ...ON 6 3 1 HF part 6 3 2 Power Supply 8 3 3 Safety Devices 8 4 INSTALLATION 9 4 1 Grounding 9 4 2 Coaxial Cable 9 4 3 Control Cable 9 4 4 Main Supply 11 4 5 Cooling 11 5 OPERATION 11 5 1 Operation Eleme...

Страница 3: ...SB No 1 18 5 2 2 6 Bias CW No 1 18 5 2 2 7 Software version 19 5 2 3 Operating mode 19 6 MAINTENANCE 23 6 1 Indication of Fault Conditions 23 6 2 Fuse Replacement 24 6 3 Cleaning 25 7 APPENDIX 26 7 1...

Страница 4: ...1000W SWR protection Automatic switching to STBY when reflected power is 100W or higher Intermodulation distortion 32 dBc Suppression of harmonics 60 dBc MOSFET MRFE6VP61K25HR6 Cooler 3 axial fans 2...

Страница 5: ...ght in edit mode Settings menu PRE Preamplifier ON Edit mode start cursor to the left in edit mode CW SSB mode switch OSD Indicator 140 x 16 dot graphic display to view Display menu Settings menu Warn...

Страница 6: ...installed in such a way that the rear panel will stay accessible CAUTION The amplifier is an A category product In a household it can influence other electric appliances In such cases the user is to...

Страница 7: ...red impedance level and the length of the coax was tuned to achieve maximum efficiency and maximum power transfer between the device and its load impedance Top view on the opened OM1002 Input Output R...

Страница 8: ...external source of AC in the range from 100VAC to 250VAC 50 or 60 Hz It can be powered by a portable generator for example Switch Mode Power Supply and the Supply Board Two fuses are visible 3 3 Safet...

Страница 9: ...may risk damaging to your equipment having problems with TVI BCI or your transmitted signal may be distorted 4 2 Coaxial Cable The output of the transceiver is to be connected to the input of the amp...

Страница 10: ...we recommend to connect the PA in such a way that the transmit receive switch foot switch for example is connected with the KEY IN socket of the amplifier The KEY OUT socket is to be connected with th...

Страница 11: ...activated when inside temperature exceeds 40 deg Celsius Their speed is gradually rising with increasing temperature Two fans inside the power supply start to operate depending on the current drawn by...

Страница 12: ...y loss 5 1 Operation Elements There is couple of operational elements accessible and visible on the front panel STBY Standby mode LED OPERATE Operation mode LED CW CW mode LED PREAMP Preamplifier ON L...

Страница 13: ...s to start editing mode in the Settings menu short press to move cursor to the left in editing mode CW SSB long press to change between CW CW LED is ON and SSB mode LED is OFF UP DWN short press to li...

Страница 14: ...es using UP DWN buttons UP for upper line scroll DWN for bottom line scroll OM POWER amplifier Own text Bar graph for output power PWR in watts short bar graph PWR in watts REF in watts PWR in watts S...

Страница 15: ...tton s corner will light The top line will display Settings menu in the bottom line user can scroll these parameters or texts Own text Display delay Bias delay Preamplifier delay Bias SSB No 1 Bias CW...

Страница 16: ...etc Maximum 20 characters When you finish editing press the SET button for about 2 5 seconds to confirm new text and to leave editing New text replaces the original Own text in the Display Menu 5 2 2...

Страница 17: ...uch a case bias value after pressing the PTT will depend on the working mode Settings menu appears in the upper line Select Bias delay in the bottom line To open edit mode press PRE Use UP DWN buttons...

Страница 18: ...second line about 2 7A Do not leave this status active long time Use the SET button to release checking 5 2 2 6 Bias CW No 1 This parameter will be checked without the possibility to change it When Se...

Страница 19: ...lowed power in bypass mode is 100 Watts Passing RF power is not measured and displayed if PA is either in standby mode or turned OFF Push the OPER button to activate operation mode At that moment 50V...

Страница 20: ...T for the first time set the RF power in your transceiver to the minimum from 3 to 5 watts Select parameters in the Display menu as is visible in the previous or next picture and press PTT You can che...

Страница 21: ...366W Power gain from input to output of the PA was 18 2 dB When operation mode of the PA was changed from CW to SSB output power increased TCVR output power remained the same This is because the oper...

Страница 22: ...important parameters of PA Do not exceed the output power of 1000 watts in CW operation mode and about 800 watts in SSB AM FM and digi operation mode even if more is reachable NOTE We recommend using...

Страница 23: ...ifier will stay in the operation mode but transmitting will be blocked Decrease the input power to allow transmits again When reflected the power of the PA exceed 100 watts Reflected power too high fa...

Страница 24: ...ain When current of the PA exceed the limit value Current is too high fault message appears on the display amplifier will stay in operation mode and transmitting will be blocked Decrease input power f...

Страница 25: ...fier surfaces and the plastic components do not use aggressive chemicals for cleaning Do not open the amplifier for cleaning Outer surface may be safely accomplished by using piece of soft cotton clot...

Страница 26: ...26 7 APPENDIX 7 1 Block Diagram of OM1002 Power Amplifier...

Отзывы: