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C4iSR: Joint & Common Equipment

DSEI 2017: Barrett Communications details new 4075 SDR

17 September 2017

Barrett Communications showcased its new high-frequency (HF) radio transmitter at DSEI 2017 in London.

The Barrett 4075 high-power software defined radio (SDR) couples 500 W and 1 kW liquid-cooled linear amplifiers with Barrett’s existing 4050 SDR HF transmitter, which has a transmit frequency range of 1.6-30 MHz and a receive range of 250 kHz-30 MHz, with a seven-band low pass filter.

The liquid-cooled solid state design, which uses a water propylene glycol mixture and is claimed by Barrett to be unique, reduces the requirement for forced air cooling. This arrangement provides greater power efficiency and improved reliability and service life, while eliminating fan noise.

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