GMRS Outlaws
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Radio tools

Small live tools for GMRS, ham radio and node operators. Everything runs right here on the page.

GMRS channel finder

All 30 GMRS channels with frequency, power and notes. Search or filter.

  • 1462.5625 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 2462.5875 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 3462.6125 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 4462.6375 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 5462.6625 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 6462.6875 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 7462.7125 MHzUp to 5 W on GMRS (FRS radios 2 W). Shared with FRS. Simplex only.
  • 8467.5625 MHz0.5 W. Low-power simplex, shared with FRS.
  • 9467.5875 MHz0.5 W. Low-power simplex, shared with FRS.
  • 10467.6125 MHz0.5 W. Low-power simplex, shared with FRS.
  • 11467.6375 MHz0.5 W. Low-power simplex, shared with FRS.
  • 12467.6625 MHz0.5 W. Low-power simplex, shared with FRS.
  • 13467.6875 MHz0.5 W. Low-power simplex, shared with FRS.
  • 14467.7125 MHz0.5 W. Low-power simplex, shared with FRS.
  • 15462.5500 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 16462.5750 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 17462.6000 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 18462.6250 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 19462.6500 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 20462.6750 MHzUp to 50 W. Our WSFW755 repeater output, PL 141.3.
  • 21462.7000 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 22462.7250 MHzUp to 50 W. Main GMRS channel. Also repeater output.
  • 23467.5500 MHzUp to 50 W. Repeater input, paired with channel 15.
  • 24467.5750 MHzUp to 50 W. Repeater input, paired with channel 16.
  • 25467.6000 MHzUp to 50 W. Repeater input, paired with channel 17.
  • 26467.6250 MHzUp to 50 W. Repeater input, paired with channel 18.
  • 27467.6500 MHzUp to 50 W. Repeater input, paired with channel 19.
  • 28467.6750 MHzUp to 50 W. Our repeater input (ch 20 output +5 MHz).
  • 29467.7000 MHzUp to 50 W. Repeater input, paired with channel 21.
  • 30467.7250 MHzUp to 50 W. Repeater input, paired with channel 22.

Repeater offset calculator

Enter a repeater output and get the frequency your radio transmits on.

Transmit on 467.6750 MHz

GMRS repeaters use a +5 MHz offset. Add the repeater's PL tone to both sides.

Antenna length calculator

Quarter-wave and half-wave lengths for any frequency.

Full wavelength
0.648 m
Quarter-wave whip
0.51 ft (6.1 in)
Half-wave dipole, total
1.01 ft (12.1 in)

These are starting lengths for a bare wire. Real antennas need a little trimming, and the ground plane or vehicle roof matters.

Power and decibel converter

Convert watts to dBm and dBW and see the change against a 5 watt handheld.

In dBm
37.0 dBm
In dBW
7.0 dBW
Compared with 5 W
0.0 dB

Doubling power adds only 3 dB, about half an S-unit. Antenna and height usually beat extra watts.

Phonetic alphabet converter

Say your call sign clearly on the air.

Whiskey · Sierra · Foxtrot · Whiskey · Seven · Five · Five

Ham radio practice quiz

Six quick questions in the style of the Technician exam.

Question 1 of 6

What does a repeater do?