Simple field strength meter

Posted on Sep 10, 2012

The circuit is frequency selective. It has been used from 2 meters through 160 meters. The telescoping antenna may be adjusted to its shortest length when working at 2 meters to keep the needle on the scale, Meter should be a 100 microamp to a 500 microamp movement

Simple field strength meter
Click here to download the full size of the above Circuit.

The diodes are germanium type, such as 1N34, etc. Silicon diodes will also work, but they are a bit less sensitive.

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