HF Transmitter #09 - Directional Coupler, LPF & Antenna Relay
Immediately downstream of the final power amp, I'm adding a LPF (low pass filter), a directional coupler, and an antenna relay - all on a common printed circuit board.
The directional coupler will allow me to measure forward and reflected RF power, so that I can calculate in the Arduino software the transmitted power and the standing wave ratio (SWR).
No endorsement is made nor implied to any commercial products referenced in this episode.
Видео HF Transmitter #09 - Directional Coupler, LPF & Antenna Relay канала Level UP EE Lab
The directional coupler will allow me to measure forward and reflected RF power, so that I can calculate in the Arduino software the transmitted power and the standing wave ratio (SWR).
No endorsement is made nor implied to any commercial products referenced in this episode.
Видео HF Transmitter #09 - Directional Coupler, LPF & Antenna Relay канала Level UP EE Lab
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