Full-color, full-resolution graphics from the pages of QRP Homebrewer
QHB #10 -- April 2003
The NJQRP "Sniffer" Field Strength Meter, by J. Everhart, N2CX and G. Heron, N2APB |
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Here’s one idea of a layout for the board. The white circles represent pads. As indicated in the text, this just happens to be my layout … yours could be entirely different, more ergonomic, and better performing for you. Be ingenious and come up with your own version! And how about an enclosure?!
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Manhattan-style base board, 3” x 6”
with
“island pads” cut with NJQRP
Islander Pad Cutter.
(Standard “PC dots” could also be
glued on for pads.)
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Partially assembled Sniffer
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Simulation plots showing selectivity of
front end
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Table of frequencies covered in tuning
range.
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