From EDN magazine Ideas for Design: Low-cost RF sniffer finds 2.4-GHz sources.
The input filter can be cannibalized from any Wi-Fi device with a ceramic bandpass filter near the antenna.
Low-cost RF sniffer finds 2.4-GHz sources
Dec 16, 2006
1 Replies
I have one of the first generation Zap Checkers (when they were being sold at electronics flea markets).
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've seen these modified with a switch and SMA for external antenna use. It seems to me adding a filter would turn the zap checker into a wifi sniffer.
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