Franklin County Public Safety

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 Trunked Radio System
NameFranklin County Public Safety
OwnerFranklin County
Owner Type
CountryUnited States

System Details
TypeMotorola Type II Smartnet
Connect Tone97.3

FCC Callsign(s)

System-specific links
DatabaseFCC Site Map
ForumRR Site Map

Other Resources

Wiki FAQMediaWiki
QuickRefPDF Card

Wiki HomeCollaboration Gateway → United States → OhioFranklin County → Franklin County Public Safety TRS

Welcome to the Franklin County Public Safety collaboration article, a Trunked Radio System located in Franklin County, Ohio, United States.
This is where you, the user, may index any articles you develop for scanning related topics for this Trunked Radio System.


This multi-site simulcast system is the Public Safety system for Franklin County, and is the primary backup system for most users of the Public Service system. Owned by the City of Columbus and administered with oversight by the Central Ohio Communications Advisory Committee, it is used by most public safety agencies in Franklin County, including the City of Columbus and the Franklin County Sheriff.

Background Information

In the early 1990s, the city of Columbus implemented this system, a Motorola Smartnet simulcast trunking system, for its own city services. This system originally used Spectra mobile and base radios along with STX and MTX portable radios.

Several suburban fire departments joined this system and the decision was eventually made to use it for all public safety operations and to use Franklin County's system for all public service operations. However, these user divisions are changing with the migration to P25 digital, with some agencies moving from one system to the other.

Simulcast site locations are:

State Office Tower (SOT)
Groves Road
Parsons Avenue @ SR317 (behind Scioto Downs)
Griggs Dam
Morse Road @ Cherry Bottom Road
Polaris - Fire Station 33

Agencies not on line for daily operations are:

  • Bexley Police (use Ohio MARCS-IP which replaced Ohio MARCS)
  • Dublin Police (use COIRS P25 trunked system)
  • Gahanna Police (use Ohio MARCS-IP which replaced Ohio MARCS)
  • Grandview Heights Police (use conventional 800 MHz frequencies)
  • Grove City Police, Jackson Township Fire, and Pleasant Twp Fire (use Grove City trunked system)
  • Hilliard Police (use COIRS P25 trunked system)
  • New Albany Police (use Ohio MARCS-IP which replaced Ohio MARCS)
  • Norwich Township Fire (use COIRS P25 trunked system)
  • Ohio State University Police (use Ohio MARCS-IP which replaced Ohio MARCS-IP)
  • Reynoldsburg Police (use conventional 450/460 MHz frequencies)
  • Whitehall Police (use Ohio MARCS-IP which replaced Ohio MARCS)
  • Washington Township Fire (use COIRS P25 trunked system)
  • Worthington Fire and Police, Sharon Township Police, and Perry Township Police (use COIRS P25 trunked system)

All dispatch centers in Franklin County have the capability of accessing the system for mutual aid using the Emergency Zone talkgroups as well as assigned primary and backup talkgroups, and the METRO ALERT talkgroup (use of which is limited to communication centers only).

Talkgroup Structure

While there may have been one at one time, no system or structure seems to exist for assigning talkgroups on this system. New talkgroups apparently are assigned based on the next sequential talkgroup number available.

Related Links