What are the important points to remember when the WA-TX-03S, WA-RX-03S module is operated on the test board which enables the channel and mute level to be changed?
Channels cannot just be allocated randomly. It is important to create a channel plan in order to avoid third-order intermodulation interference. Mute level sets the received RF threshold. When RF drops below the threshold, the audio output will be muted automatically.
Third order intermodulation
Also see: WA-03 Testboard operation guide
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