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OM1000+

General description of the OM1000+ HF and 50 MHz Amplifier

The linear amplifier OM1000+ 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 GS-23B.


Specification of OM1000+:

Frequency coverage: Amateur bands 1.8 – 29.7 MHz including WARC + 50 MHz
Power output: 1200+W PEP in SSB, 1000W CW on HF bands,
1000W PEP SSB, 800W CW on 50 MHz,
800W on RTTY
Input power: 35 to 40 W for full output power
Input impedance: 50 Ohm VSWR < 1.5 : 1
Output amplification: 14 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 (between 30–54 MHz better than 70dBc)
Tube: GS-23B ceramic tetrode
Cooling: Centrifugal blower
Power supply: Switchable 220, 230, 240 V – 50Hz
Transformers: 1 toroidal transformer 1.6 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
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
  - Full QSK with silent vacuum relay
Mechanical parameters: 390mm x 195mm x 370mm (width x height x depth)
Weight: 23.5 kg