SSB Receiver

Using the Weaver method in a receiver requires some care, but it's very doable.

Peter Traneus Anderson, KC1 HR

This article describes an experimental 75-meter Weaver-method single-sideband (SSB) receiver built by combining parts of my previously described Weaver-method exciter with two of KK7B's R1 direct-conversion receiver boards.1'2-3 Although a first-try receiver rather than an optimized design, the SSB receiver works well.

A Weaver-method SSB receiver offers advantages over filter or phasing-method receivers. Filter-type receivers tend to have broad skirts, due to limi tations in mechanical or crystal filters. Weaver-method receivers have sharp skirts, due to the sharp audio-frequency low-pass filters used to define the passbancl.

Filter-type receivers require a minimum of two frequency conversions, one

Suppressed 1 477—Hz Tone

Suppressed 1 477—Hz Tone

1000 2000 Frequency (Hz)

1 Notes appear on page

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Audio 1477—Hz Generator

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