Twin State Mutual Aid

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Twin State Mutual Aid

  • Twin State is Dispatched by Grafton County Sheriff's office in Haverhill,NH
  • They dispatch Northern Grafton County, and some Vermont Fire Departments
  • The Unit ID's use the name of their towns then say their unit type (which is a letter) and then their number


Table of contents -


Radio System

Frequency Type Tone Notes Confirmation/ReConfirmation
154.4000 S 136.5 Ch.1 - Dispatch 2023.11.11 ecps92
Ch.2 - Local Frequency (See specific town for confirmation).
Ch.3 - Local Frequency (See specific town for confirmation).
154.2950 S 136.5 Ch.4 - Fireground 2021.12.27 JBolduc
154.2800 S 136.5 Ch.5 - Statewide Fireground
154.2350 136.5 Ch.6 - Fireground
154.1600 173.8 Ch.7 - Fireground
155.6775 R Now Expired Vermont transmit site

Fixed Links

Frequency Type Tone Notes Confirmation/ReConfirmation
451.3625 F 114.8 Downlink (154.4000) from Remote RX site (?) 2014.06.22 LTE4NFD
453.3625 F 141.3 Downlink (154.4000) from Remote RX site (Mann Hill) back to Grafton SO 2014.07.12 ecps92
451.7500 F Downlink (154.4000) from Remote RX Site (Haverhill) back to Grafton SO
451.7500 F Downlink (154.4000) from Remote RX Site (West Newbury VT) back to Grafton SO
458.2625 F D606 Downlink (154.4000) from Remote RX Site (Franconia) back to Grafton SO 2019.10.21 ecps92
458.6375 F D606 Downlink (154.4000) from Remote RX Site (Haverhill) back to Grafton SO 2019.10.21 ecps92
465.3625 F Downlink (?? Mhz) from Remote RX Site (West Newbury VT) back to Grafton SO

Member Communities

  • Bath
  • Bethlehem
  • Carroll (Twin Mountain)
  • Easton
  • Franconia
  • Haverhill
  • Landaff
  • Lincoln
  • Lisbon
  • Littleton
  • Lyman
  • Monroe
  • North Haverhill
  • Piermont
  • Sugar Hill
  • Twin Mountain (Carroll)
  • Woodstock
  • Woodsville
  • Barnet, VT
  • Bradford, VT
  • Groton, VT
  • Newbury, VT
  • Peacham, VT
  • Ryegate, VT
  • Ryegate Corner, VT
  • Wells River, VT