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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. NOAA Weather Radio, Weatheradio Canada and SARMEX all refer to the seven stations by their frequencies: 162.400, 162.425, 162.450, 162.475, 162.500, 162.525 and 162.550 MHz.
Listening to a NOAA Weather Radio station requires a VHF radio receiver or scanner capable of receiving at least one of seven specific VHF-FM channels within the frequency range of 162.400 through 162.550 MHz, collectively known as the "Weather Band". For example, a receiver that only tunes in standard AM or FM broadcast stations will not suffice.
Once the SAME header is sent by NOAA/NWS and if it matches the desired code(s), the receivers then decode the event, scroll it on their display screens, and sound an alarm. Receivers receive on one of the following National Weather Service network frequencies (in MHz): 162.400, 162.425, 162.450, 162.475, 162.500, 162.525, and 162.550.
The National Weather Service Los Angeles is a local office of the National Weather Service responsible for monitoring weather conditions in Los Angeles, Ventura, Santa Barbara, and San Luis Obispo counties, as well as adjacent coastal waters out 60 nautical miles. [1]
Map of regions covered by the 122 Weather Forecast Offices. The National Weather Service operates 122 weather forecast offices. [1] [2] Each weather forecast office (WFO or NWSFO) has a geographic area of responsibility, also known as a county warning area, for issuing local public, marine, aviation, fire, and hydrology forecasts.
The sensor on weather satellites that picks up the data transmitted in HRPT is referred to as an Advanced Very High Resolution Radiometer (AVHRR) for NOAA satelites. [1] Broadcast signal The working frequency band for HRPT is L Band at 1.670–1.710 GHz and the modulation type isBPSK. [2]
In January 2010, the first live code testing of the EAS was conducted in Alaska. The first ever nationwide test of the system took place on November 9, 2011. In September 2010, FEMA announced IPAWS would be utilizing Open Platform for Emergency Networks (OPEN) to move standards-based alert and information messages between alert and warning systems.
One common use of utility stations is disseminating weather information. Weather information is often broadcast using RTTY and sending synoptic codes, or weather charts are sent using radiofax, which are used by mariners and others. Airports make voice weather broadcasts on HF, known as VOLMET. Some examples include New York Radio, which ...