Hi, BA7NFW here. Background infomation When I searched for "No-communication squelch" function, which you can find on most yaesu radios, I came across this post ('cause it shows up on google). Basically we can't make this function work, not even have an idea why this function exists when TONE Reversed mode already works fine. I had the same confusion, and the question wasl unresolved. (btw, can someone post under that question just to tell Marc I have an answer now? I'm not