The Emergency Radio Buying Guide: Bands, S.A.M.E. Codes and Power

Emergency radio shopping goes wrong in a predictable way. The listings advertise features that sound like safety — "emergency alert", "weather band", "SOS" — and bury the one specification that decides whether you will still own the radio in a year. This guide goes in the order that actually matters, and cites the National Weather Service for the facts about the service itself rather than a retailer.

What NOAA Weather Radio actually is

NOAA Weather Radio All Hazards is a government broadcast network run by the National Weather Service. It transmits continuous weather information and, in an emergency, warnings — not only weather, but also the civil and public-safety alerts the "All Hazards" name refers to. The transmitters run on backup power, which is why the broadcast keeps going when the grid does not.

Your radio is a receiver on this network. It is not part of a two-way system, it has no account and no subscription, and there is nothing to set up except the alerting. The NWS maintains its own page on receivers, and it is the right thing to read before any purchase.

The seven frequencies, and why "weather band" is not enough

NWR stations use seven VHF public-service channels, spaced 25 kHz apart: 162.400, 162.425, 162.450, 162.475, 162.500, 162.525 and 162.550 MHz (NWS: NOAA Weather Radio FAQ).

Any radio worth buying receives all seven, because which one serves you depends on your nearest transmitter and you may need a different one if you travel. A listing that says "weather band" without a channel count is being vague for a reason. The specification to look for is simply 7 NOAA channels.

S.A.M.E. codes, and how to set one

This is the feature that decides whether the radio stays switched on. One NWS transmitter covers a wide area, often several counties. Without filtering, your radio alarms for all of them.

S.A.M.E. (Specific Area Message Encoding) is a digital burst at the start of each alert carrying the codes of the counties it applies to. A S.A.M.E. radio compares those codes with the ones you programmed and stays silent if it is not your area. Midland's desktop units hold up to 25 counties, which is far more than a household needs and useful if you cover a commute or a second property.

1. Find your county's six-digit code. The NWS publishes the list; it is one lookup for most people, or several if you want neighboring counties too.
2. Enter it in the radio's menu following the manual. On the Midland units this is a few button presses.
3. Set the alert style. Voice, tone or display-only — the last one is what makes a bedroom radio tolerable.
4. Test it. NWS transmitters run a weekly required test, usually midweek. If your radio does not react on test day, something is not programmed.

The Public Alert standard, and its one catch

Public Alert is a real certification, not a marketing badge: the standard is CTA-2009-C, developed by the Consumer Technology Association with the National Weather Service, and only the CTA can authorize use of the mark (NWS: All Hazards logo information).

The catch is worth knowing. A receiver qualifies for the NWR All Hazards logo with either S.A.M.E. or 1050 Hz tone alerting, and tone-only receivers are exempt from section 5 of the standard, which applies only to S.A.M.E. receivers. So a certified radio can still alert for the whole transmitter area. The badge is a floor, not a guarantee of county filtering — look for the letters S.A.M.E.

Power options, compared honestly

• AC with alkaline backup. The right answer for a house. Alkaline cells sit for years and are there when the grid is not. Midland rates the WR120's backup at roughly two days of standby, or about twelve hours of constant full-volume broadcast.
• Rechargeable pack with crank and solar. The right answer for a bag. The trade is self-discharge: a lithium pack left for three years will be flat.
• Alkaline only. The most reliable after long storage and the least useful once the cells are gone. Tape a spare set to the radio.
• Cranking, realistically. Sangean is the only maker in the category that publishes a ratio: about one minute of cranking for roughly five minutes of listening (MMR-88). Treat the crank as insurance that the radio is never fully dead, not as how you run it.
• Charging a phone. Read the mAh. A 2600 mAh pack has real headroom; an 850 mAh pack is sized for its own listening time. Either way expect a partial charge, not a full one.

What to buy for your situation

The half this guide does not cover

Every radio above is receive-only. None of them can call anyone. A preparedness kit that only receives is half a kit, and the other half is a two-way radio: license-free FRS, which anyone may use with no application and no fee (FCC: Family Radio Service), or GMRS, where one license covers the holder and their immediate family (47 CFR 95.1705).

The build, with a checklist and channel plan, is in the power-outage communication kit. If you want the shorter answer on whether radios work at all when the grid fails, do walkie-talkies work if the grid goes down? is the page for that, and the family emergency communication plan covers who calls whom.