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OM4000HF FCC approved

GENERAL DESCRIPTION OF THE OM4000 HF POWER AMPLIFIER

NEW FCC approved version for USA. Exclusively available at our dealer for North America - Array Solutions (http://www.arraysolutions.com)

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: 1500W PEP continuous output – no time limit
Input Power: Usually 50 to 70W for full Output Power
Input power can not exceed 100W !
Input Impedance: 50 Ohm, VSWR < 1.5 : 1
Power Gain: 15 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: 240V – 60 Hz
Transformers: 2 pcs of toroidal transformer 3kVA
Dimensions: 485 x 200 x 455mm (19” x 8” x 18”) [width x height x depth]
Weight: 43 kg (94.8 lbs)
FCC ID: X8NOM4000HF
PROTECTIONS: - VSWR too high
  - 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. 2 sec