Driverj30t9
Member
- Joined
- May 22, 2018
- Messages
- 97
Hi there, I'm just wondering about the signal bars on scanners and any radio, but I only scan and use cb.
My question is why does a radio pick up a signal bar on a frequency, be it 1, 2, 3, 4 or 5 bars, when no one is transmitting?
Do transmitters/transceivers always emit some radio waves from there antennas even when the radio isn't being keyed and then my reciever antenna picks those up and shows how strong the signal is?
My question is why does a radio pick up a signal bar on a frequency, be it 1, 2, 3, 4 or 5 bars, when no one is transmitting?
Do transmitters/transceivers always emit some radio waves from there antennas even when the radio isn't being keyed and then my reciever antenna picks those up and shows how strong the signal is?