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SOLID STATE 145 MHz
POWER AMPLIFIER

User Manual

OM POWER, s. r. o.

930 30 Báč 126

E-mail : [email protected]

SLOVAKIA

Web : www.om-powwer.com

Содержание OM2002+

Страница 1: ...OM2002 SOLID STATE 145 MHz POWER AMPLIFIER User Manual OM POWER s r o 93030 B 126 E mail om power om power com SLOVAKIA Web www om powwer com...

Страница 2: ...This product is covered by 3 years of warranty period We wish you many years trouble free use of this equipment lot of fun and successful connections in the world of amateur radio The OM POWER Team Co...

Страница 3: ...6 1 2 Specification 6 1 2 1 Parameters 6 1 2 2 Protection Circuits 8 2 SAFETY INSTRUCTIONS 9 3 GENERAL DESCRIPTION 11 3 1 Front and Rear Panel 11 3 2 HF Part 15 3 3 Power Supply 16 3 4 Safety Devices...

Страница 4: ...Operation Elements 24 5 2 Preparing for Use 25 5 3 Setup Menu 26 5 3 1 Language selection 27 5 3 2 Display contrast 27 5 3 3 Display delay 28 5 3 4 Bias switch 28 5 3 5 Preamplifier delay 29 5 3 6 Bia...

Страница 5: ...5 6 2 Fuses 38 6 3 Cleaning 38 7 BLOCK DIAGRAM 39 8 TIMING 40...

Страница 6: ...is equipped with a Freescale high rugged N channel double MOSFETs This amplifier is characterized by compact design small size and a low weight 1 2 Specification 1 2 1 Parameters Frequency Coverage 14...

Страница 7: ...er is 180W or higher Intermodulation distortion 32 dBc Suppression of harmonics 70 dBc MOSFET 2 x MRFE6VP61K25HR6 Cooler 2 axial fans cooler 1 axial fan power supply Supplying 100 250VAC 50 60 Hz Powe...

Страница 8: ...s or some unwanted occasion occurs Output power too high Reflected power too high Drain current too high Differential drain current to high Power coupler fault VSWR too high DC voltage too low or DC v...

Страница 9: ...ithout the upper lid in place The OM2002 amplifier is neither to be used in a WET or HUMID environment nor to be exposed to RAINFALL Do not turn the amplifier on without having connected the ANTENNA o...

Страница 10: ...r must be installed in such a way that the rear panel will stay accessible The amplifier is an A category product In a household it can influence other electric appliances In such cases the user is to...

Страница 11: ...ription 3 1 Front and Rear Panel Main switch green on the right side and OLED display are visible on the front panel After switch PA ON the display lights up in couple of seconds and shows the control...

Страница 12: ...12 RF Output See Note RF Input Grounding Point Mains Plug Power Supply Cooler inside...

Страница 13: ...socket of the amplifier The KEY OUT socket is to be connected with the PTT socket in the transceiver The amplifier is equipped with safety devices which ensure that the output relay is not switched un...

Страница 14: ...sible on the right upper side Left side shows the main RF part two boards with MOSFETs amplifiers everyone for max 1 kW of output power Down are two axial fans on the left side together with display b...

Страница 15: ...sign was tuned for performance at 1800W CW output 50VDC It consists of no tune distributed element matching circuits designed to be as small as possible For operating it is important that adequate hea...

Страница 16: ...m power transfer between the device and its load impedance Low Pass Filter is installed behind the amplifier to attenuate harmonics Part of the output coupler is visible too 3 3 Power Supply The ampli...

Страница 17: ...eed Power amplifier should be connected to any external source of AC in the range from 100 VAC to 277 VAC from 45 to 60 Hz It can be powered by a portable generator for example Small Power Supply for...

Страница 18: ...otection board Control board is located behind the front panel Protection board is visible on the right hand side of PA close to the input output relay Protection board with Input circuits Input split...

Страница 19: ...future shipment Check unpacked power amplifier If you find some damaging contact your dealer immediately to keep full warranty During installation go step by step according to next parts 4 1 Groundin...

Страница 20: ...onnected to the input of the amplifier via RG58 or similar cable For the connection between the power amplifier and the antenna Belden 9913 or similar coaxial cable suited for high power is recommende...

Страница 21: ...e a time delay between PTT switching and power output Sufficiently robust coaxial relay is using for TX RX switching 4 4 Main Supply Be sure you got PA with properly terminated line cable correspondin...

Страница 22: ...ng time operation It is automatically activated when PA is switching ON There are two modes of fan speed selectable In the normal mode fan speed is gradually rising with increasing temperature In the...

Страница 23: ...at least 2 hours after unpacking it and moving in its operating location Especially when amplifier was moved from a cold place to a warm one because not visible condensation may develop inside and th...

Страница 24: ...d shows the controls and indicators They are very intuitive There are 4 yellow touch buttons visible on the screen Above the first three buttons from the left side their status should be displayed Tou...

Страница 25: ...er turning on the power switch on the front panel power amplifier will automatically go into standby mode We recommend to start preparation for operation with SETUP menu Firstly it allows you to set t...

Страница 26: ...26 5 3 Setup Menu In the setup mode you can set the basic parameters of the display and amplifier In the first step choose language Touch SETUP on the screen Setup menu is displayed Touch LANG...

Страница 27: ...Screen will go automatically back to the Setup Menu Or if you do not want to change language touch BACK 5 3 2 Display contrast Touch CONT from Setup screen Use UP DOWN to set contrast of the touchscre...

Страница 28: ...significant feature of the power amplifier It allows to set low MOSFETs drain current abt 200mA after pressing the PTT until RF signal is no present at the input At the moment when RF signal comes to...

Страница 29: ...ition Then touch BACK Screen will go automatically back to the Setup Menu 5 3 5 Preamplifier delay You can control switching of an external remote RX preamplifier from the PA using PREAMP ON OFF touch...

Страница 30: ...delay touch BACK 5 3 6 Bias current Touch CURR to see both levels of bias current for both MOSFETs In couple of seconds you will see the values of drain current in the four lines This parameter will...

Страница 31: ...is either in standby mode or turned OFF Touch the OP STBY button to activate operating mode In the OPERATE mode you can select fan speed switching an external RX preamplifier ON or OFF but it is not p...

Страница 32: ...also read other important parameters on the display MOSFETs voltage MOSFETs current reflected power SWR and temperature Depending on the reflected power you can consider quality of your antenna impeda...

Страница 33: ...1500 watts in SSB AM FM and digi operation mode even if more is reachable We recommend using the maximum output power of 1500 watts to maintain good linearity of output signal in SSB or AM mode Check...

Страница 34: ...ked Top picture shows such a situation Fault LED is ON transmitting is blocking Under FAULT LED exceeded parameter is visible SWR Touch RESET to reset fault status and return PA to the operation mode...

Страница 35: ...D in abbreviated form when some of the protection will be activated To view fault history with full text of the faults touch FAULT from Setup Menu The OM2002 power amplifier will respond to these cond...

Страница 36: ...the impedance of your antenna Touch RESET for going back to the operation mode When the input power of the PA exceeds limit value Pin fault message appears on the display transmitting will be blocked...

Страница 37: ...starts blinking At 80 degrees protection circuit will automatically block transmitting fault condition You have to decrease the power or wait couple of minutes to be ready transmitting again Touch RES...

Страница 38: ...m the rear side of the PA There is no necessary to open upper lid If for some reason you need to open upper lid of the amplifier make sure that power supply has been disconnected Take out power cord f...

Страница 39: ...39 7 Block diagram...

Страница 40: ...40 8 Timing KEY IN KEY OUT BIAS 5 15 5 5 5 10 5 time in ms INPUT RELAY Switching time 20ms IN 15ms OUT OUTPUT RELAY Switching time 20ms IN 15ms OUT...

Страница 41: ...41 In the case if LNA is active PREAMPLIFIER ON KEY IN KEY OUT BIAS T T 10 5 5 5 10 5 INPUT relay Switching time 20ms IN 15ms OUT OUTPUT relay Switching time 20ms IN 15ms OUT LNA...

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