I just got my Technician's license a few weeks ago and I'm trying to figure out if this is user error or if I need to return my radio.
My understanding of squelch is that when the received signal strength exceeds the squelch threshold the radio starts playing the audio for whatever it is receiving. When I have the squelch set to '0' I get a ton of static as well as hearing anyone who is talking from the repeater and the green RX light on my HT lights up solid; as expected. However, if I set the squelch to '01' then I get nothing at all.
At first I just assumed that my dinky HT just couldn't get a very strong signal from the repeater and was unable to distinguish the activity from the static. However, I noticed that sometimes when the squelch was turned up a notch that I would see the green RX light illuminate for significant stretches of time. If I turn the squelch back down to '0' I was able to confirm that there were actually people talking.
It seems to me that these signals shouldn't cause the light to illuminate unless the radio is receiving something over the squelch threshold. This leads me to suspect that when squelch is set to a non-zero value it is failing to actually activate the speaker when the signal is strong enough and I have a faulty device.
Am I missing something here?