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General description and the advantages of the OM4001A amplifier

The OM Power model OM4001A 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 OM4001A:


Full compatibility with TRXs-CAT

- 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

- Apache Labs Anan

RF sensitive Band and Frequency switching, for use with radios which do not have CAT

Automatic switching between bands

Automatic tuning with the band according to segments

Automatic switching of band pass filter – BAND DATA output compatible with YAESU radios (BCD code)

Automatic switching of the antenna switches - maximum number of antennas is 10, controlled by BCD output code

Remote control via PC Windows Application


Specification of OM4001A:


Frequency coverage: Amateur Bands 1.8 – 29.7 MHz including WARC

Power output: 4000+ W in SSB and CW on HF bands,

3000W in RTTY and DIGI modes

Input Power: Usually 40 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: 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

Response speed of AUTO tune: less than 0,5s within same BAND, less than 2s if out of BAND

Power supply: switchable 2 x 220/230/240V – 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

  - 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

LAN Connection

Power amplifier is interfaced to LAN via XPORT made by Lantronix (type XP1001000-05R). More info can be found at www.lantronix.com .


Default factory settings of XPORT are:


IP address: 192.168.1.222

Mask: 255.255.255.0

Gateway: 192.168.1.1


These are strictly default settings. You can modify any of these by going to XPORT web GUI via your web browser. We do not recommend changing any other parameters of the XPORT interface as loss of communication can be caused by doing so. There is no default user name or password. It is highly recommended to secure web interface with username and password.

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Om power OM4001A

  • Brand: OM-Power
  • Product Code: Om power OM4001A
  • Availability: 2-4 Days
  • €7,018.00

  • Ex Tax: €5,800.00

Tags: Om power OM4001A