Acom 1400 solid state hf amplifier 1.8-54 Mhz 1200 watts is based on the latest LDMOS transistor technology. The PA final stage uses a robust 65V LDMOS transistor for heavy-duty operating modes. The amplifier is equipped as standard with an Ethernet interface and can therefore be controlled remotely via the Internet via the integrated web interface.
Standard frequency coverage
All amateur bands from 1.8 to 54 MHz:
1,800 - 2,000 MHz (160 m band)
3,500 - 4,000 MHz (80 m band)
5.020 - 5.455 MHz (60 m band)*
7,000 - 7,300 MHz (40 m band)
10.100 - 10.150 MHz (30 m band)
14,000 - 14,350 MHz (20 m band)
18.068 - 18.168 MHz (17 m band)
21.000 - 21.450 MHz (15 m band)
24.890 - 24.990 MHz (12 m band)
28,000 - 29,700 MHz (10 m band)
50,000 - 54,000 MHz (6m band)*
(*) For specific information on allocations and limitations, please refer to regional bandwidth plans and applicable laws;
In specific business cases, extensions or changes to the frequency coverage can be discussed, but this must be agreed before ordering. In any case, this is not an obligation of the manufacturer and cannot be contrary to local regulations and laws.
Nominal output power
1200 W ±0.5 dB, PEP or continuous carrier, without mode limitation, at 200-264 VAC mains;
600W when powered by 90-132V AC.
Intermodulation distortion (IM3)
Better than 31 dB below nominal PEP;
Suppression of harmonic and parasitic emissions
-60 / -70 dB or less (HF/50 MHz band);
Input and output impedances
Rating: 50 Ohm unbalanced, UHF type connectors (SO-239);
Input circuit: broadband, SWR less than 1.2 (typically 1.1), continuous range 1.8-54 MHz without retuning or switching;
RF bypass path: SWR - less than 1.1, 1.8-54 MHz;
Acceptable SWR on the output load (the antenna): up to 3 with proportional power reduction and up to 1.5 for full output power;
RF power gain
14 dB ±1 dB (typically 50 W for 1200 W output power);
Mains supply voltage
100-240 V AC, ±10%, 50-60 Hz, single phase;
Mains power consumption at full output power
Power factor equal to or greater than 0.95;
Up to 3100 VA at nominal power (200 VAC);
Up to 2000 VA at 600 W output from 100/120 VAC;
Network power consumption in low power mode (standby)
Less than 1 VA;
Reception/transmission control
KEY-IN - Phono RCA connector
Voltage applied to the transceiver keying output: up to +12 V;
Closed-loop current flow to transceiver keying output: up to 6 mA;
KEY-OUT - open-drain Phono RCA connector
Output resistance: not more than 120 Ohm;
The maximum allowable open circuit voltage from connecting external devices is +50 V;
Maximum closed-loop current flow allowed from external devices: 20 mA;
Minimum required sequencing time between sending a transmit request (KEY-IN "transmit ground" signal) and applying RF drive power to the RF INPUT connector for safe switching from receive to transmit: 10 ms.
Safety and electromagnetic compatibility
Complies with CE safety and electromagnetic compatibility requirements;
FCC (US Federal Communications Commission) certification is being organized starting in October 2024;
Dimensions and weight (operation, excluding attached cables)
Amplifier, WxDxH: 372x418x170 mm, 14.6 kg (14.7x16.5x6.7 inches, 32.2 lbs);
Remote control unit, WxDxH: 179x118x86 mm, 0.730 kg (7.1x4.7x3.4 inches, 1.6 lbs);
Dimensions and weight of shipment
Please contact us for shipping details;
Operating environments
Temperature range: -10 to +40 degrees Celsius (14 to 104 degrees F);
Relative air humidity: up to 95% at +35 degrees Celsius (95 degrees F);
Height above sea level: up to 3050 m (10000 feet) without deterioration in power.