The linear amplifier OM4001HF is a manual tune 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 OM4001HF:
| Frequency coverage: | Amateur Bands 1.8 – 29.7 MHz including WARC |
| Power output: | 4000W in SSB and CW on HF bands, 3000W in RTTY, AM and FM |
| Input Power: | Usually 40 to 70W for full Output Power |
| Input Impedance: | 50 Ohm, VSWR < 1.5 : 1 |
| Power Gain: | 17 dB |
| Output Impedance: | 50 Ohm unbalanced |
| Maximum Output SWR: | 3:1 |
| 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: | switchable voltages - 220/230/240V for 50Hz or 230/240/250V for 60Hz (or other primary voltages e.g. 200V 50/60Hz for Japan) |
| 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 |
| - Anode current too high | |
| - Anode voltage error | |
| - Screen current too high | |
| - Screen voltage error | |
| - Grid current too high | |
| - Grid voltage error | |
| - Heating voltage error | |
| - Mistuning of PA | |
| - Temperature too high | |
| - Soft start for protecting your fuses | |
| - “switch-on blocking“ at opened amplifier | |
| Indications: | 4.3" color touch screen display |
| Features: | High level of protection |
| Memory for faults and warnings, easy maintenance | |
| Automatic set-up anode current (BIAS) – no need to adjust manually after changing the tubes | |
| Three programmable working modes of the axial blower | |
| Full QSK operation | |
| Many operational parameters to display | |
| The smallest and lightest 4000 W Power Amplifier on the market |
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The linear amplifier OM4001HF is a manual tune 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.
