This simple standing waveform (ROE or SWR) meter is used to adjust antenna matching with transmitters. The diode is commonly used and the instrument has 1 mA full scale. We found it in an old telecom documentation;
This simple standing waveform (ROE or SWR) meter is used to adjust antenna matching with transmitters. The diode is commonly used and the instrument has 1 mA full scale. We found it in an old telecom documentation;