GMRS data without the attitude. Actually, with some attitude.
Unlike ham radio with its well-known 146.520 MHz national calling frequency, GMRS does not have an officially designated national emergency channel. However, there are widely recognized conventions and practical strategies for emergency communication.
Since there's no official standard, the most effective emergency frequency is the one your local community agrees on ahead of time. A pre-coordinated channel that five families in your neighborhood all have programmed is far more useful than a "national" channel no one near you is monitoring.
Work with your family network, neighbors, and local GMRS groups to agree on:
Most mid-range and higher GMRS radios support scan (cycling through a list of programmed channels) and dual watch (monitoring two channels at once while prioritizing one). In an emergency situation, dual watch is especially useful: keep your group's primary channel on watch while simultaneously monitoring Channel 20 or a local repeater. This way you won't miss a call on either channel while waiting for traffic to clear.
Program a dedicated scan list of just your emergency channels - primary simplex, backup simplex, and local repeaters - so scanning stays focused instead of sweeping all 30 channels.
The right choice depends on the scenario. Simplex (direct radio-to-radio with no infrastructure) is more reliable when repeaters may be offline due to power outages or damage. It's also preferable for short-range coordination within a neighborhood or family group where everyone is close enough to reach each other directly. Repeater communication extends your range dramatically and is better for reaching outside help, coordinating across a larger area, or contacting the broader GMRS community when local resources are overwhelmed. Ideally, train your group on both and know which to use first in a given situation.
GMRS Channels 1-7 overlap with FRS channels at the same frequencies. If an FRS-only user (with a blister-pack radio) is calling for help on one of these shared channels, your GMRS radio will hear them. You can respond - GMRS licensees are permitted to communicate with unlicensed FRS users. This cross-service capability is most likely to matter after a disaster when neighbors may only have inexpensive FRS radios and don't know the GMRS calling channels. Keep at least one shared FRS/GMRS channel programmed and occasionally include it in your emergency scan list.
Many GMRS handhelds and mobiles include a weather band receiver covering the seven NOAA Weather Radio frequencies (162.400, 162.425, 162.450, 162.475, 162.500, 162.525, and 162.550 MHz). These receive-only channels broadcast continuous NWS forecasts and emergency alerts. Program your local NOAA transmitter into a weather memory channel and enable SAME (Specific Area Message Encoding) alerts if your radio supports them - it will alert you only for your county instead of every adjacent area. During a weather emergency, your GMRS radio doubles as an always-on weather alert receiver.
Create a dedicated memory channel labeled "EMRG" or "EMERGENCY" in your radio with your pre-agreed settings. Most radios let you name memory channels, so label it clearly. Program the same emergency channel settings into every radio in your group.
Also program:
Write down your group's emergency channels, CTCSS tones, and local repeater offsets on a small card, then laminate it and attach it to each radio or keep it in your go-bag. Include: primary and backup simplex channels with tones, local repeater input/output pairs and tones, NOAA weather frequency, and a brief protocol reminder (who calls first, what to say). A waterproof card survives the same conditions that make the radio necessary - floods, storms, power outages.
If you're organizing GMRS use in your neighborhood or community preparedness group, hold a brief net (a scheduled on-air check-in) monthly so everyone confirms their radios are programmed correctly and working. Assign a net control station - typically whoever has the best antenna or central location - to manage communication during an actual emergency. Decide in advance: which channel is for distress calls, which is for logistics traffic, and who has the authority to call for outside help via repeater. Written documentation shared with all group members before a crisis is far more effective than trying to coordinate verbally during one.
If you're in an emergency and don't know who's nearby, use your radio's scan function to sweep all GMRS channels. Many radios can scan all 30 GMRS channels in seconds. When you hear activity, stop and call for help on that channel.
Remember: Per 95.1705(c)(3), a GMRS licensee may allow anyone to operate their station to communicate an emergency message. Don't hesitate to hand your radio to someone who needs it. Any channel where someone can hear you is the right channel.