Remote Field Strength Meter Circuit


Posted on Apr 1, 2013

This field strength meter consists of a tuned crystal detector producing a dc output voltage from a transmitted signal. The dc voltage is used to shift the frequency of a transmitter of 100-mW power operating at 1650 kHz. The frequency shift is proportional to the received field strength.


Remote Field Strength Meter Circuit
Click here to download the full size of the above Circuit.

This unit has a range of several hundred feet and is operated under FCC part 15 rules (100-mW max power into a 2-m-iong antenna between 510 and 1705 kHz).




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    The Link Telephone Intercom Every Home Should Have One!
    regulated dc power supply
    Flashing-LED Battery-Status Indicator Circuit
    60W Linear amplifier
    Simplest Solid State Tesla Switch
    The input circuit common mode noise suppression microphone amplifier with balance
    Microcontroller Based Telephone Remote Control Circuit



    Top