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.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    sensitive FM Transmitter
    fm radio receiver circuit with ic tda
    square wave oscillator circuit
    The Gentle Touch
    27MHz CB Amplifier Circuit
    Electronic Dictionary Radar Terms
    Intermittent start and stop cycle control circuit of the four