A Modular Receiver for Exploring the LF/VLF Bands

Looking around at a number of publications and Internet sites, I found several circuit ideas that seemingly could be fashioned into a complete receiver design accessible to the average ham - one that could be built up from easy-to-get components and use only freely available software. Output transfo...

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Bibliographic Details
Published inQST Vol. 92; no. 11; p. 36
Main Author Coyle, Larry
Format Magazine Article
LanguageEnglish
Published Newington American Radio Relay League, Inc 01.11.2008
Subjects
Amateur radio
Electric fields
Frequencies
Integrated circuits
Magnetic fields
Noise
Radio communications
Receivers & amplifiers
Software
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Summary:Looking around at a number of publications and Internet sites, I found several circuit ideas that seemingly could be fashioned into a complete receiver design accessible to the average ham - one that could be built up from easy-to-get components and use only freely available software. Output transformer T1 steps the 1500 ohm balanced output impedance of the mixer chip down to 50 ohm, which is a good input match for most communications receivers.
Bibliography:content type line 24
ObjectType-Commentary-1
SourceType-Magazines-1
ISSN:0033-4812