OM-4001HF Amplifier 4000W

€6,340.00
incl. VAT, plus shipping €5,327.73

In stock, shipped in 1 to 2 days

SKU
OM-4001HF
  • 2x FU-728F Ceramic Tetrodes
  • max.4000 W Outoput Power
  • Manual Tuning
  • Multiple protection mechanisms


The OM-Power amplifier OM-4001HF offers sufficient power for most situations. With two ceramic tetrodes of type FU-728F the PA provides up to 4000W output power in SSB and CW, and approx. 3000W in RTTY/FT8. Usually, 40 to 70 W drive power is sufficient to fully drive the PA (corresponds to approx. 17 dB gain). This ensures a trouble free operation with any typical 100W radio. The tuning is done with the band selector switch (all bands from 160-10m incl. WARC) and the load/tune controls, either to maximum transmit power or grid current dip. Tuning is very simple and sensitive. As usual with the manufacturer OM-Power, the power amplifier is protected against many error conditions and switches off automatically in case of a fault. For example too high SWR (above 3:1) is detected, as well as too high current at the anode, screen or control grid. Other sensors check the voltages, temperature or housing switches to ensure safe operation.

The OM-4001HF is controlled via a 4.3" color touch LCD on the front panel. During normal operation, the output power and SWR are displayed, a menu is available for settings. The processor used in the amp stores error conditions to facilitate diagnosis in case of a problem. The data can be read out via a serial interface. A special function is the automatic adjustment of the anode current (bias current), this makes a tube change very easy. The OM-4001HF requires two separate phases of mains voltage for operation, but conversion to only one (adequately fused) phase is also possible.



Features OM-4001HF

  • Tubes 2x FU-728F
  • All Bands from 160 - 10m, incl. WARC
  • Up to 4000 W output power in SSB and CW
  • Up to 3000 W output power in RTTY, FM, FT8 etc.
  • Drive power approx. 40 to 70W
  • Input Impedance 50 Ohm, SWR 1.5:1 or better
  • Amplifications ca. 17 dB
  • Output 50 Ohm coaxial
  • Max. SWR at antenna 3:1
  • Supporession of harmonic emissions better than 50 dBc
  • Forced cooling with two fans (1x Axial, 1x Radial)
  • Size: 485 x 200 x 455 mm
  • Weight: 46 kg



Technical Data
Product Name OM-4001HF
Amplification (dB) 17
Remote Control capabilities No
Brand OM-Power
Max. Power [W] 4000 W
OM-4001HF Amplifier 4000W
OM-4001HF Amplifier 4000W

Fast Delivery Free consulting Secure payment

€6,340.00
incl. VAT, plus shipping €5,327.73

In stock, shipped in 1 to 2 days

Related categories