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Old 7th Apr 2020, 11:13 pm   #9
Julesomega
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Join Date: Dec 2012
Location: Stockport, Greater Manchester, UK.
Posts: 2,085
Default Re: GEC-Marconi single-frequency HF Rx

Just to put this to bed, this version of the HF Module can be set in the range 12.5-18.5MHz. The Minicircuits TAK-1H mixer requires +17dBm LO drive which would account for the two tuned transformers and amplifier devices after the xtal osc. The dynamic range of the front end must be rather impressive. Whatever sort of noise it delivers is output via a balanced line transformer.

Just leaves the question, what application requires banks of high performance single-channel receivers in this frequency range.
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