Acom 1200S – Solid State 1.2kW Amplifier


The Acom 1200S is a state-of-the-art solid-state amplifier that boasts a substantial 1.2kW output, powered by the new LDMOS MRF1K80 output device from NXP for enhanced performance across various applications.

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This latest iteration features a large 108 x 65 mm colour display, offering high resolution (800 x 480 pixels) and 24-bit colour depth, making it easy to monitor the amplifier’s status.

Designed to handle challenging conditions, the Acom 1200S utilizes the robust MRF1K80 LDMOS device, renowned for its high tolerance to mismatched loads (SWR), making it ideal for use in aerospace, industrial, mobile, and radio broadcast environments.Acom 1200S - Solid State 1.2kW Amplifier

The amplifier is capable of automatic band switching when connected to a transceiver via a CAT interface, ensuring it stays in sync with the operating frequency without manual intervention.

Acom 1200S - Solid State 1.2kW AmplifierFor scenarios where a CAT interface is unavailable, the Acom 1200S continues to impress with its built-in frequency counter that detects the input signal’s frequency and autonomously adjusts the band settings.

This feature-rich amplifier is designed to deliver superior performance, reliability, and user-friendliness, making it a top choice for serious amateur radio operators and professionals alike.

Complies with EU safety regulations and electromagnetic compatibility standards, as well as with the US Federal Communications Commission (FCC) rules.


Rated Output Power1000W +/-0.5dB, PEP or continuous carrier (1200W typically)
Covers1.8 to 54 MHz
Inter-Modulation Distortions (IMD3)Better than 30dB below the rated PEP output
Harmonic and Parasitic Emissions Output SuppressionBetter than 60dB (65dB typically)
Input and Output ImpedancesNominal value: 50 Ohm unbalanced, UHF (SO239) type connectors
Input CircuitBroadband, SWR below 1.2:1 (1.1:1 typically) continuous range without retuning or switching
RF Bypass Path SWRBelow 1.1:1
Admissible SWR at the Output Load (the Antenna)Up to 3:1 with proportional power reduction and up to 1.5:1 for full output power
RF Power Gain13dB +/-1dB
Mains Power Supply Voltage93V to 265V AC without switching
Mains Power Consumption at Full Output Power2000VA or less with a power factor of 0.95 or higher
Mains Power Consumption in Low Energy (Waiting) ModeLess than 1VA
Temperature Range-10 C to +40 C
Relative Air HumidityUp to 95% @ 35 C
Dimensions Operating418 x 372 x 162 mm
Weight12 kg

Additional information

Weight12.3 kg