• OM Power OM-4000HF - Heavy Duty Legal Limit HF Manual Tune Amplifier. 160 - 10 m. Full QSK-ready.



The 4000 W output OM4000HF linear amplifier is designed for all short wave amateur bands from 1.8 to 29 MHz (including WARC – bands ) and all modes. It is equipped with two FU-728F ceramic tetrodes.



 

Specifications of the OM-4000HF:

Frequency Coverage: Amateur Bands 1.8 – 29.7 MHz including WARC
Power Output: 4000 W Peak output – 2500 W no time limit
Input Power: Usually 50 to 70 W 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: 32 dB below nominal output
Suppression of harmonics: < -50 dBc
Tubes: Two FU-728F Ceramic Tetrodes
Cooler: Centrifugal blower + Axial blower
Power supply: 2 x 240 V AC – 60 Hz
Transformers: Two toroidal transformers 3 kVA each
Dimensions: 485 mm x 200 mm x 455 mm (19” x 8” x 18”) [width x height x depth]
Weight: 43 kg (94.8 lb)
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

- Grid Current (Ig2 - 10 LEDs)


- Control Grid Current - (Ig1 - 2 LEDs)

LED indicators:

- WAIT – preheating of tubes (180 seconds )
  - STBY – standby
  - OPR – operating condition
  - FAULT – failure, switching off for abtout 2 seconds


 

See how to tune an OM-Power 2500, 3500, 4000, click here

Click here to download the OM4000HF manual


Shipping direct from OM Power and importation fees ad up to $375.00. 

OM Power OM-4000HF - Heavy Duty Legal Limit HF Manual Tune Amplifier. 160 - 10 m. Full QSK-ready.

  • Brand: OM Power
  • Product Code: OM-4000HF
  • Availability: Call for Shipping Details
  • $5,868.00


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