OM Power OM4000HF

OM Power OM4000HF
RRP: £ 4949.95
£4949.95 ( £4124.96 EXC. VAT )
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Product Information
  • Overview
  • Description
The linear amplifier OM4000HF is designed for all short wave amateur bands from 1.8 till 29 MHz (including WARC) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F.

Specification of OM4000HF:

Frequency Coverage:Amateur Bands 1.8 – 29.7 MHz including WARC
Power Output:4000W in SSB and CW,
3000W in RTTY, AM and FM
Input Power:Usually 60 to 90W for full Output Power
Input Impedance:50 Ohm, VSWR < 1.5 : 1
Power Gain: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:32dB below nominal output
Suppression of harmonics:< -50 dBc
Tubes:2x FU728F Ceramic tetrode
Cooler:Centrifugal blower + Axial blower
Power supply:2 x 230V – 50 Hz one or two phases
Transformers:2 pcs of toroidal transformer 3kVA
Dimensions:485 x 200 x 455mm (width x height x depth)
Weight:43 kg
 - Input power too high
 - Output power too high
 - Plate voltage too low
 - Anode current too high
 - Screen current too high
 - Grid current too high
 - Mistuning of PA
 - Hot switching protection
 - Soft start for protecting your fuses
 - “switch-on blocking “ at opened amplifier
BAR GRAPH INDICATORS:- Power output – 50 LEDs
 - Reflected power – 20 LEDs
 - Current at screen ( Ig2 –10 LEDs )
 - Anode voltage, anode current, tuning – 30 LEDs
LED indicators:- current at control grid ( Ig1 – 2 LEDs )
 - WAIT – preheating of tube (180 sec )
 - STBY – standby
 - OPR – operating condition
 - FAULT – failure, switching off for abt. 4 sec
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