Circuit - 2.45GHz RF Signal Detector - Circuits designed by David A. Johnson, P.E.

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Circuits designed by David Johnson, P.E.
Last Updated on: Thursday, December 01, 2011 05:14 AM

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More RF Sensors Telephone Circuits Wireless Telephones

2.45GHz RF Signal Detector

This passive RF indicator is made from a few simple parts. A 100uA moving coil meter is used to display the relative intensity of the RF signal. This circuit can be used with some cellphones and many cordless telephones.

Click on Drawing Below to view PDF version of Schematic

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