OM-4001HF Amplifier 4000W
Available from 07.12.2023
- 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
Product Name | OM-4001HF |
---|---|
Remote Control capabilities | No |
Amplification (dB) | 17 |
Brand | OM-Power |
Max. Power [W] | 4000 W |