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