Essentially, radio static during a call on is an indication the signal strength is degrading (or that there’s no sound coming through in any way). When signal power degrades amply, the static resonance emerges.
When there’s no communication coming through, it is a complete different narrative. A walkie talkie has what’s renowned as a ‘squelch’ regulate circuit that maintains tabs on the signal strength. The squelch circuit will quiet the speaker the moment it realizes that there’s no signal coming through to the radio. That is, essentially, the exact same purpose as your TV has when it cuts off an unavailable channel after a preset time. Though, within the moments before your two way radio ‘squelches’ the signal, you will hear static, or ‘white noise’ as it is also called. Continue reading How to get rid of the static noise on your 2 way radio?