
4
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 SSB (linearity), RTTY,
AM, FM and digi, 50% duty cycle.
Input Power
10 to 15 W for full output power 1000W
Input Impedance
50 Ohm, VSWR < 1.3 : 1
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
< -60 dBc
MOSFET
MRFE6VP61K25HR6
Cooler
3 axial fans + 2 axial fans (power supply)
Supplying
100 – 250VAC , 50 – 60 Hz
Power Supplies inside
50V DC switch mode PS
12V DC for logic and protection circuits
Size 270 mm x 200 mm x 345 mm [10.6” x 7.9” x 13.6”]
(Width x height x depth)
Weight
12 kg ( 26.5 lb )
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
·
Gain to low
·
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)