4000 W output automatic tuning HF amplifier. 160 m to 10 m. See the Optional Remote Control Unit for ON/OFF, Operate/Stdby, and that can be connected to WLAN for remote operation.
Uses two FU-728F Ceramic Tetrodes.
See table table below for MARS frequencies.
The OM4001A linear amplifieris 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 tetrodes.
The advantages of the OM4001A:
Frequency coverage: Amateur bands 1.8 – 29.7 MHz including WARC
Power output: 4000 W in SSB/CW on HF bands, 3000W on RTTY, FM
Drive power: 30 to 60 W for full output power
Input impedance: 50 Ohm VSWR < 1,5:1
Output amplification: 17 dB
Output impedance: 50 Ohm unbalanced
Maximum output SWR: 3:1
SWR protection: Automatic switching to STBY when reflected power is 350 W or higher
Intermodulation distortion: better then -32 dBc
Suppression of harmonics: < -50 dBc
Response speed of AUTO tune: less than 0,5s within same BAND , less than 1s if out of BAND
Supported TRXs-CAT : ICOM, ELECRAFT, KENWOOD, TEN-TEC ORION,
YEASU, Icom transceiver protocol using by microHAM
devices – CI-V OUPUT, Flex Radios and Anan (Apache Labs)
Tube: Two FU-728F ceramic tetrode
Cooling: Centrifugal blower + axial blower
Electrical Requirements: Two 20A circuits with NEMA 6-15/20 receptacle
Power supply: Switchable 220V, 230V, 240V, 60 Hz
Transformers: Two 3.0 kVA toroidal transformers
· 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
· 4,3” color touch screen
· support automatic external ANT switching
· Memory for faults and warning, easy maintenance
· Automatic set-up idle current (BIAS) – no need to manually adjust after changing the tube(s)
· Automatic operation of additional fan according to temperature
· T/R System : QSK operation
· REMOTE control - connector for LAN connection – remote control software
free of charge
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
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 username or password. It is highly recommended to secure web interface with username and password.
For remote control and monitoring over LAN special software is needed. It is available free of charge, it can be downloaded from the following address:
Dimensions 19 in. x 18 in. x 8 in. (width x depth x height)
OM Power OM-4001A - Heavy Duty Legal Limit HF Automatic Amplifier and MARS frequencies. Full QSK-ready.
- Brand: OM Power
- Product Code: OM-4001A
- Availability: 3 Weeks
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