![]() Unlike WX1-WX7 typically ordered by frequency adoption by NWS, there is no consistent frequency inclusion nor assignment for WX8-WX12. The "WX#" format is continued from WX8 up to WX12 on some lists and radios to include 163.275 MHz and or one or more of the Canadian continuous marine broadcast (CMB) frequencies 161.650, 161.750, 161.775, 162.000. Ordering channels by when they were established (WX1, WX2, …) is "becoming less 'popular' over time than a numerical ordering of channels." Weather radios may list stations in the order of their WX#, or by a "Preset Channel" number 1 thru 7 in ascending frequency order. Other channel designations such as WX1 through WX7 "have no special significance but are often designated this way in consumer equipment" and "other channel numbering schemes are also prevalent/possible" according to NOAA and USCG. The original "weather" frequency was 162.550 MHz, with 163.275 MHz initially recommended as a backup and later dropped due to interference problems with other federal agencies. NWR channels operating in the range of 162.3625-162.5875 MHz (WX1-WX7) have a band spacing of 25 kHz and may have bandwidths up to 16 kHz. NWR transmitters operate VHF-FM between 5–1,000 watts. The United States' NOAA, Canada's Weatheradio, Mexico's SARMEX and Bermuda operate their government weather radio stations on the same marine VHF radio band, using FM transmitters, and the same seven frequencies (162.4-162.55 MHz) as NOAA Weather Radio (NWR). ![]() # WX8-WX12 frequency order and inclusion varies Frequency North American weather radio services National Weather Radio Frequencies One such service is Navtex, which is a low-frequency facsimile radio service. ![]() Usually a radio scanner or a dedicated weather radio receiver is needed for listening, although in some locations a weather radio broadcast may be re-transmitted on an AM or FM broadcast station, on terrestrial television stations, or local public, educational, and government access (PEG) cable TV channels or during weather or other emergencies.īoth private and commercial seagoing vessels need accurate weather reports, in order to avoid storms that might damage or capsize the vessel, or make paying passengers uncomfortable. They generally broadcast in a pre-allocated very high frequency (VHF) range using FM. Weather radio services may also occasionally broadcast non-weather-related emergency information, such as in the event of a natural disaster, a child abduction alert, or a terrorist attack. Weather radios are typically equipped with a standby alerting function-if the radio is muted or tuned to another band and severe weather bulletin is transmitted, it can automatically sound an alarm and/or switch to a pre-tuned weather channel for emergency weather information. Two types of weather radio receivers the common Midland home weather radio (model WR-100) to the right is often the most popular and known unit sold in the United States, while the orange Oregon Scientific model on the left is portable and water-resistant for outdoor use.Ī weather radio is a specialized radio receiver that is designed to receive a public broadcast service, typically from government-owned radio stations, dedicated to broadcasting weather forecasts and reports on a continual basis, with the routine weather reports being interrupted by emergency weather reports whenever needed.
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