OM power hf amplifier OM 2501 HF 1.8 - 30 MHz

hf amplifier  om power OM 2501 HF 1.8 - 30 Mhz, 

General description of the OM2501HF amplifier

The OM2501HF linear amplifier is a manual tuner designed for all shortwave amateur bands from 1.8 to 29 MHz (including WARC) and all modes. It features a single piece of FU728F or GU84B ceramic tetrode.

Technical specifications:

Frequency coverage: Amateur bands 1.8 – 29.7 MHz including WARC

Output power: 2500W in SSB and CW on HF bands,

2000W in RTTY, AM and FM

Input Power: Typically 30 to 60W for maximum 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 the reflected power is equal to or greater than 350 W

Intermodulation distortion: -32 dB below nominal output

Harmonic suppression: <-50 dBc

Tubes: 1 FU728F or GU84B ceramic tetrode

Cooler: Centrifugal Fan + Axial Fan

Power supply: switchable voltages - 220/230/240 V for 50 Hz or 230/240/250 V for 60 Hz

(or other primary voltages, e.g. 200 V 50/60 Hz for Japan)

Transformers: 2 pcs of 2kVA toroidal transformer

Dimensions: 485 x 200 x 455 mm (width x height x depth)

Weight: 40kg

Protection circuits: - VSWR too high

  - Anode current too high

  - Anode voltage error

  - Screen current too high

  - Screen voltage error

  - Mains current too high

  - Mains voltage error

  - Heating voltage error

  - PA Mistuning

  - Temperature too high

  - Soft start to protect fuses

  - "Ignition lock" with amplifier open

Indications: 4.3" color touchscreen display.

Features: High level of protection

  Memory for faults and warnings, easy maintenance

  Automatic anode current setting (BIAS): no need to manually adjust after changing tubes

  Three programmable working modes of the axial fan

  QSK operation complete

  Many operating parameters to view