OM Power OM4000A
Product Information
- Overview
- Description
The OM Power model OM4000A is an automatic power amplifier, designed for use on all short wave amateur bands from 1.8 to 29.7 MHz (including WARC bands) and all modes. It is equipped with a two pieces of ceramic tetrode FU728F.
The advantages of OM4000A:
- Automatic switching between bands
- Automatic tuning with the band according to segments
- Automatic switching of band pass filter
- Automatic switching of the antenna switch
- The possibility to use 2 different antennas within one band or segment
- Full compatibility with
- - ICOM
- - YAESU
- - ELECRAFT
- - Ten-Tec Orion
- - Kenwood
- - Icom transceive protocol using by microHAM devices –CI-V output (MK II, MK2R, MK2R+, etc)
- - Flex Radio Series 6xxx
Specification of OM4000A:
| 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: | 46 kg |
| Protection circuits: | - 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 | |
| LED indicators: | - Current at control grid (Ig1) - 2 LEDs |
| - WAIT – preheating of tube (150 sec.) | |
| - STBY - standby | |
| - OPR – operation mode | |
| - FAULT – failure, switching off for abt. 2 sec. | |
| - INHIBIT – operating condition | |
| - ANT 1 - which ANT is in use | |
| - ANT 2 – which ANT is in use | |
| - ANT - ANT selection | |
| Bar graph indications: | - Power output – 50 LEDs |
| - Reflected power – 20 LEDs | |
| - Ig2 current - 10 LEDs | |
| - Anode voltage, anode current, tuning – 30 LEDs |
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