TV Relative Signal Strength Meter

This circuit was
designed to assist the installation of TV antennas. The signal is
monitored using a small portable TV set and this circuit monitors the
output of the TV’s FM detector IC via a shielded lead. To initially
calibrate the meter, adjust trimpot VR2 to zero the meter. Trimpot VR1
is a sensitivity control and can be set for a preset reading (ie, 0dB)
or can be calibrated in millivolts. Rotating the antenna for a minimum
reading on the meter (indicating FM quieting) gives the optimum
orientation for the antenna.

TV Relative Signal Strength Meter Circuit

TV Relative Signal Strength Meter Circuit Diagram

Author: Ted Sherman
Copyright: Silicon Chip Electronics

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