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OM2000+

General description of the OM2000+ HF and 50 MHz Amplifier

The linear amplifier OM2000+ is designed for all short wave amateur bands from 1.8 to 29 MHz (including WARC – bands) + 50 MHz and all modes. It is equipped with a ceramic tetrode FU-728F.


Specification of OM2000+:

Frequency coverage: Amateur bands 1.8 – 29.7 MHz including WARC + 50 MHz
Power output: 2000+ W in SSB/CW on HF bands, 1500 W CW/SSB on 50 MHz 1500 W in RTTY
Input power: 40 to 60 W for full output power
Input impedance: 50 Ohm VSWR < 1.5 : 1
Output amplification: 15 dB
Output impedance: 50 Ohm unbalanced
Maximum output SWR: 2:1
SWR protection: Automatic switching to STBY when reflected power is 250W or higher
Intermodulation distortion: 32 dBc
Suppression of harmonics: min -50 dBc ( 30–54 MHz better than 70dBc)
Tube: FU-728F ceramic tetrode
Cooling: Centrifugal blower + axial blower
Power supply: Switchable 220, 230 , 240 V – 50/60 Hz
Transformers: 1 toroidal transformer 3 kVA
Protection circuits: - SWR too high
  - Anode current too high
  - Screen current too high
  - Grid current too high
  - Mistuning of power amplifier
  - Temperature to high
  - Soft start for fuse protection
  - “switch –on blocking “ at opened amplifier
Indications: - OLED display 4 x 20 character
  - Analog 2 systems meter for forward and reflected power
LED indicators: - ON status
  - STBY– standby
  - FAULT – warnings and faults indicator
  - ON AIR – amplifier in transmitting status
Features: - Antenna switch for 3 antennas
  - Memory for faults and warning, easy maintenance
  - Automatic set-up anode current (BIAS ) – no need to manual adjust after changing the tube
  - Temperature controlled 2-speed centrifugal blower ( turbine ) + axial blower
  - Full QSK with silent vacuum relay
  - The smallest and lightest 2000W PA on the market
Mechanical parameters: 390mm x 195mm x 370mm (width x height x depth)
Weight: 24 kg