SECURE

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Operation SECURE (State Emergency Capability Using Radio Effectively) - intrastate/interstate and state/federal interoperability MF and HF network, similar in scope and function to SHARES. Analogous to the VHF/UHF nationwide interoperability frequency plans. Like many US government HF radio networks, Operation SECURE uses frequencies allocated to the maritime mobile service and the fixed/mobile services.

Some states appear to not have current/valid licenses for the SECURE network frequencies. Like the SHARES network, SECURE is used as a backup for, and in conjunction with Internet teleconferencing systems, secure dedicated telephone links (including hardened four-line systems) between state Emergency Operations Centers, FEMA HQ and other important government offices and UHF/SHF/EHF SATCOM systems.

  • 2226 kHz USB - OK
  • 2264 kHz USB - AK
  • 2326 kHz USB - AL CA CO CT DC FL ID IL IN LA MA ME MI MO MS MT NE NH NJ NV NY OH OR RI SC TN TX VA VT WA WY Interstate Coordination
  • 2411 kHz USB - GU MA MO NJ RI VA VT WA
  • 2414 kHz USB - ID IL MA ME MI MO NH OR WA WY
  • 2419 kHz USB - CA CT GU MA MO OH RI TN TX VT WY
  • 2422 kHz USB - CA OH SC TX
  • 2439 kHz USB - FL MO MT
  • 2450 kHz USB - MI
  • 2463 kHz USB - FL GU MO MT VA
  • 2466 kHz USB - CO DC GU MI
  • 2471 kHz USB - CO ID
  • 2474 kHz USB - CO TN
  • 2487 kHz USB - AL IN NV
  • 2511 kHz USB - IN NV SC VA
  • 2535 kHz USB - GU ID MS
  • 2569 kHz USB - GU IL MS
  • 2587 kHz USB - DC GU NJ TX VA WA
  • 2726 kHz USB - MI VA
  • 2801 kHz USB - GU NM OK OR TX VA WA
  • 2804 kHz USB - CA ID IL MI MT NE NM OK TX Interstate Coordination Alternate
  • 2812 kHz USB - CA GU LA MT NE NY TX VA
  • 3201 kHz USB - NY
  • 3211 kHz USB - AK
  • 3230 kHz USB - AK
  • 4460 kHz USB - AK
  • 4560 kHz USB - AK
  • 5135 kHz USB - AK AL CO CT DC ID IL IN MA ME MT NM NH NY OK OR RI SC TN VT Interstate Coordination Alternate
  • 5140 kHz USB - CA FL ID IL IN MI MO MT NM OH OK TN TX VA Interstate Coordination
  • 5167.5 kHz USB - AK Alaska emergency/calling frequency (center frequency: 5168.9 kHz)
  • 5192 kHz USB - AL CT IL LA MA ME MO NE NH RI TX VA VT WA Interstate Coordination
  • 5195 kHz USB - AK CA DC ID MS MT NJ NV OR TN TX VA WY Interstate Coordination
  • 5380 kHz USB - AK
  • 7418 kHz USB - AK
  • 7477 kHz USB - CT DC ID LA MA MI MO MS MT NM NY OK RI VT Interstate Coordination Alternate
  • 7480 kHz USB - AK CA IL LA MT NM NV OK OR SC TN Interstate Coordination Alternate
  • 7802 kHz USB - CA CO IL IN MO OH OR TX daytime only
  • 7805 kHz USB - AL CA CO CT DC FL ID IN LA MA ME MI MO MS MT NE NH NJ NM NV OH OK OR RI TN TX VA VT WA WY Interstate Coordination
  • 7932 kHz USB - FL ID IL MT NV SC TN TX WY
  • 7935 kHz USB - AL IL IN MO NE OR TX WA