RF Field Strength Meter, Power Meter, Detector etc..

Electronics Infoline Web

Linear RF-power detector

using AD8361

http://www.edn.com/article/CA243222.html

makes buzzing sound when strong enough RF field is detected

http://www.ee.washington.edu/circuit_archive/circuits/rfsniff.txt

http://www.intio.or.jp/jf10zl/swrk.htm

Schematic of North Country Radio RF Field Strength Kit

http://www.northcountryradio.com/Schematics/rffsm.gif

http://cs.okanagan.bc.ca/ve7ouc/eng/kc6wdk-mirror/fsm.html

With LED Signal Indication

http://geocities.com/ajpotts19/wavemeter.html

view the signal and frequency output of transmitter with oscilloscope

http://www.qsl.net/k6ls/rfsampler.html

http://www.geocities.com/tomzi.geo/fsm/fsm.htm