St. Louis County (MN) Fire Services

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Fire Department


Duluth Fire uses DTMF based Station Alerting, the code being station specific (DTMF 401: Headquarters, DMTF 407: Station 7, ...).

DTMF "###" is used for All Call, multi-unit responses, and if apparatus have moved for fill in.

The following 1s/3s two-tone pages are also used:

  • Supervisory Personnel 422.1 Hz 349.0 Hz
  • Fire Investigators 422.1 Hz 496.8 Hz

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