TV antenna tester
This device serves a purpose of TV signal quality estimation in an antenna. It measures average input voltage at a specified frequency (as in selective voltage multimeter), shows carrier frequency and shift direction from it, forms low-frequency signal for TV display, and also accompanying sound signal. For indication, a multiline LED display is used.
Antenna tester
The device is handy for signal level estimation and also for checking converters and mixers quality in antenna and cable TV networks.
Antenna tester circuit fragment