OM-POWER 2501HF AMPLIFICADOR

GENERAL DESCRIPTION OF THE OM2501HF POWER AMPLIFIER

The linear amplifier OM2501HF 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 one piece of ceramic tetrode FU728F.

PARAMETERS

Frequency Coverage Amateur Bands 1.8 – 29.7 MHz including WARC

Power Output 2500W in SSB and CW, 2000W in RTTY, AM and FM

Input Power Usually 30 to 60W 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 1x 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 2 kVA

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

Weight 40 kg

Protection circuits:

? SWR too high

? Anode current too high

? Screen current too high

? Mistuning of power amplifier

? Temperature to high

? Soft start for fuse protection

? 'switch –on blocking ' at opened amplifier

Indicator:

? 4,3' colour touch screen display

Features

? Memory for faults and warning, easy maintenance

? Automatic set-up idle current (BIAS ) – don’t need to manually adjust after changing the tube

? Automatic switch on of additional fan according to temperature

? T/R System : QSK operation