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OM2200HF

General description of the OM2200HF amplifier

The linear amplifier OM2200HF is designed for all short wave amateur bands from 1.8 till 29 MHz (including WARC – bands ) and all modes . It is equipped with a ceramic tetrode FU-728F.


Specification of OM2200HF

Frequency coverage: amateur bands 1.8 – 29.7 MHz including WARC
Power output: 2200+ W in SSB and CW
2000 W in RTTY, AM and FM
Driver Power: usually 40 to 60 W for full Output Power
Input impedance: 50 Ohm VSWR < 1.5 : 1
Output amplification: 17 dB
Output impedance: 50 Ohm unbalanced
Maximum output SWR: 2:1
SWR protection: Automatic switching to STBY, when reflected power is 350W or higher
Intermodulation distortion: 32 dB below nominal output
Suppression of harmonics: < -50 dBc
Tube: FU728F Ceramic tetrode
Cooler: Centrifugal blower + axial blower
Power supply: 1 x 230 V - 50 Hz single phase
Transformers: 1 pc of toroidal transformer 3.0 kVA
Protection circuits: - SWR too high
  - Anode current too high
  - Screen current too high
  - Grid current too high
  - Mistuning of power amplifier
  - Soft start for protecting your fuses
  - “switch –on blocking “ at opened amplifier
Bar graph indications: - Power output – bar graph 50 LED
  - Reflected power – bar graph 20 LED
  - Current at screen ( Ig2 – bar graph 10 LED )
  - Anode voltage, anode current, tuning – bar graph 30 LED
LED indicators: - current at control grid ( Ig1 – 2 LED )
  - WAIT – preheating of tube (180 sec )
  - STBY– standby
  - OPR – operating condition
  - FAULT – failure, switching off for abt. 4 sec
Parameters: 485 x 200 x 455mm (width x height x depth)
Weight: 30 kg