Home/Guide/Using Repeaters

Using Repeaters

Using Repeaters

A repeater is a radio station, usually on a hilltop, tower, or tall building, that receives your signal on one frequency and simultaneously retransmits it on another. This extends your effective range from a few miles to potentially 50+ miles.

How repeaters work

CTCSS and DCS tones

Most repeaters require a CTCSS tone (a sub-audible tone your radio transmits) or DCS code (a digital code) to activate them. This prevents random signals from triggering the repeater. You'll need to program the correct tone into your radio. Check the repeater listing for the required tone.

Use our CTCSS/DCS cross-reference tool to translate tone codes between different radio brands.

Finding repeaters near you

The best resource for finding GMRS repeaters is myGMRS.com, which maintains a nationwide directory of GMRS repeaters with frequencies, tones, and coverage maps. Many repeaters are open to all licensed GMRS users.