OM2000HF "one phase"

General description of the OM2000 HF "one phase" Amplifier

The linear amplifier OM2000 HF 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 GU84b.

Specification of OM2000 HF:

Frequency coverage: amateur bands 1.8 – 29.7 MHz including WARC
Power output: 2000+ W in SSB and CW
1500+ 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: GU84b Ceramic tetrode
Cooling: Centrifugal blower
Power supply: 1 x 230 V - 50 Hz one phase
Transformers: 1 pc of toroidal transformer 2,5 kVA
Protection circuits: - SWR too high
  - Anode current too high
  - Screen current too high
  - Grid current too high
  - Mistuning of power amplifier
  - Hot switching protection
  - Soft start for protecting your fuses
  - “switch –on blocking “ at opened amplifier
Bar graph indications: - Power output – bargraph 50 LED
  - Reflected power – bargraph 20 LED
  - Current at screen ( Ig2 – bar graph 10 LED )
  - Anode voltage, anode current, tuning – bargraph 30 LED
LED indicators: - grid current ( Igl – 2 LED )
  - WAIT – preheating of tube (180 sec )
  - STBY– standby
  - OPR – operating condition
  - FAULT – failure, switching off for abt. 2 sec
Parameters: 485 x 200 x 455mm (width x height x depth)
Weight: 28 kg