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County Coverage Listing
Coverage Map Notes
The coverage statistics and maps are calculated using a computer model and station data assuming ideal conditions. Coverage may be 5 to 10 percent below the computer predicted coverage for the following reasons:
  • The computer model is sensitive to antenna performance. Antenna performance is a function of local conditions, causing signals to be stronger signal level in some directions than others.
  • Placement of NWR antennas is dictated by the tower owner, which may result in a less than ideal set up.
  • The antenna may be affected by nearby structures or bodies of water.
  • In some special instances, the antenna may have been intentionally adjusted to be "directional" and provide better coverage to a specific area to the detriment of other areas.
  • Because of variations in local site conditions, the performance of an individual transmitter and antenna may be less than predicted or expected.
  • Seasonal environmental conditions, such as icing or heavy rain, affect performance of a transmitter station and its various components, particularly those subject to continuous weather exposure.
  • The coverage maps are shown in a single color format, which relates to an estimated signal level.
    • White: Signal level of greater than 18dBuV: Reliable coverage

Guam and the Mariana Islands Stations Listing

Click on a column heading to sort.
Weather Forecast Office (WFO)

Site NameTransmitter NameCall SignFrequencyPowerWFO
GuamNimitz HillWXM85162.400375Guam, GU
SaipanMt. TapochouWXM86162.550110Guam, GU

Number of Stations in Guam and the Mariana Islands = 2

County Coverage for Guam and the Mariana Islands

County/City/AreaSAMETransmitterSite StateCall SignFrequencyPowerWFO
Northern Islands069085---No NWR Coverage---0
Guam066010GuamGUWXM85162.400375Guam, GU
Rota069100GuamGUWXM85162.400375Guam, GU
Tinian069120SaipanMPWXM86162.550110Guam, GU
Saipan069110SaipanMPWXM86162.550110Guam, GU
Rota069100SaipanMPWXM86162.550110Guam, GU

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July 17 2014 10:57:14.