Samson C01U Consumer Microphone "guitar static sound plugged" Questions

...static sounds and cuts out temporarily. I've tried changing the setting from low to high on the unit that plugs into my bass. On the receiver is a pot that says 'squelch'. What does this do? and will ...

...guitar plugged in or a lavaliere microphone. I continue to get pops and static surging sounds. Is there a way to fix this. Hello Although it has 2 antennae the AT201 is a single channel transmitter ...