SALE 

The 4000 W output OM401HF linear amplifier is designed for all short wave amateur bands from 1.8 to 29 MHz (including WARC – bands ) and all modes. It is equipped with two FU-728F ceramic tetrode tubes.

Please see the table below for the MARS frequencies.

Specifications of the OM-4001HF MARS:

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                                                                     30 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 2 : 1

SWR protection                                                                             Automatic switching to STBY, when reflected power

                                                                                                          is 350W or higher

Intermodulation distortion                                                         32 dB below nominal output

Suppression of harmonics                                                           < -50 dBc

Tubes                                                                                               Two FU728F Ceramic tetrode

Cooler                                                                                              Centrifugal blower + Axial blower

Electrical Requirements                                                                 Two 20A circuits with NEMA 6-15/20 receptacle

Power supply                                                                                  2 x 240V – 60 Hz singhle phase

Transformers                                                                                  Two 3kVA toroidal transformer

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“ when amplifier is turned on

Display:                                                 

·           4,3” color touch screen

Features                               

·         Memory for faults and warning, easy maintenance

·         Automatic set-up idle current (BIAS) – no need to manually adjust after changing the tube(s)

·         Automatic switch on of additional fan according to temperature

·         T/R System : QSK operation

Mechanical

Dimensions                                           19 in. x 18 in. x 8 in. (width x depth x height)

Weight:                                                   94 pounds 13 oz

See how to tune an OM-Power 2500, 3500, 4000 series click here

Click here to download the OM4001HF manual

MARS Frequencies Table for the OM-4001

PRICE INCLUDES SHIPPING TO YOUR DOOR