OM POWER OM1002+ Manuel utilisateur
OM1002+
SOLID STATE 145 MHz
POWER AMPLIFIER
User Manual
OM POWER, s. r. o.
930 30 Báč 126 E-mail : om-power@om-power.com
SLOVAKIA WEB : WWW.OM-POWER.COM
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Thank you for purchasing a new model of the power amplifier for the 2m amateur band. Parameters,
the quality of design and functionality meet the requirements of the market and are the result of our own
development.
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.
OM POWER Team
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TABLE OF CONTENTS
1. GENERAL INFORMATION 6
1.1. Introduction 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 14
3.3. Power Supply 15
3.4. Safety Devices 17
4. INSTALLATION 18
4.1. Grounding 18
4.2. Coaxial Cable 19
4
4.3. Control Cable 19
4.4. Main Supply 20
4.5. Cooling 21
5. OPERATION 22
5.1. Operation Elements 23
5.2. Preparing for Use 24
5.3. Setup Menu 25
5.3.1. Language selection 26
5.3.2. Display contrast 26
5.3.3. Display delay 27
5.3.4. Bias switch 27
5.3.5. Preamplifier delay 28
5.3.6. Bias current 29
5.4. Operating Mode 30
6. MAINTENANCE 35
6.1. Fault conditions 35
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6.2. Fuses 38
6.3. Cleaning 39
7. Block Diagram 40
8. Timing 41
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1. General Information
1.1. Introduction
The OM Power model OM1002+ is a single band, solid state amplifier, designed for duty operation on 2
meter’s amateur band with all modes and no time limit. It is equipped with a new Freescale high rugged N-
channel double MOSFET. This amplifier is characterized by compact design, small size and a low weight.
1.2. Specification
1.2.1. Parameters
Frequency Coverage 144 –148 MHz Amateur Band
Power Output 1000W in CW
800W in SSB (linearity), RTTY, AM, FM and digi modes,
50% duty cycle
Input Power 10 to 15 W for full output power 1000W
Input Impedance 50 Ohm, VSWR < 1.3 : 1
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Power Gain Typically 19 dB
Output impedance 50 Ohm unbalanced
Maximum output SWR 1,9 : 1 for full output power 1000W
SWR protection: Automatic switching to STBY , when reflected power is
100W or higher
Intermodulation distortion - 32 dBc
Suppression of harmonics < -70 dBc
MOSFET MRFE6VP61K25HR6
Cooler 1 axial fan (cooler) + 1 axial fan (power supply)
Supplying 100 –250VAC , 50 –60 Hz
Power Supplies inside 50V DC switching mode PS
12V DC for logic and protection circuits
Size 318 mm x 144 mm x 362 mm [12.5” x 5.7” x 14.3”]
(Width x height x depth)
Weight 9.5 kg ( 20.9 lb )
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1.2.2. Protection Circuits
There is several special protection circuits used in the amplifier. They are activated when one or more of next
parameters exceed defined values or some unwanted occasion occurs.
Output power too high
Reflected power too high
Drain current too high
VSWR too high
DC voltage too low or DC voltage error
Input power too high (hardware protection & software protection)
Inside temperature too high
Soft start for power supply protection (PS feature)
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2. Safety Instructions
WARNING! Before you will start to install and operate power amplifier, read carefully next safety
instructions!
WARNING! AVOID CHILDREN to play around PA or to touch power amplifier or connected cables in working
condition, or to push anything into the holes!
WARNING! Never turn the amplifier on without the upper lid in place.
WARNING! The OM1002+ amplifier is neither to be used in a WET or HUMID environment nor to be exposed
to RAINFALL!
WARNING! 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!
WARNING! Before opening the upper lid of the amplifier make sure that power supply has been disconnected.
Take out power cord from the outlet!
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CAUTION! The amplifier must be installed in such a way that free flow of hot air from inside is allowed. The
amplifier must not be installed in a constrained surrounding (i.e. tight shelves etc.)
CAUTION! The amplifier must be properly grounded during operation.
CAUTION! During operation the amplifier must be 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 take proper actions to mitigate this disturbance.
CAUTION! Read this manual carefully. Follow 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!
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