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Union Police Frequencies

We do not have frequencies listed specifically for Union in Mercer County, Ohio yet. Countywide channels for Mercer County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Celina (Ohio MARCS-IP: Multi-Agency Radio Communications), about 9 miles away.

About Union Police Frequencies

  • 3 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
  • Trunked radio systems that carry law-enforcement traffic here: Ohio MARCS-IP: Multi-Agency Radio Communications: 3 talkgroups. A trunking scanner is required, and it must support the system type shown.
  • To follow a trunked system, program a control channel first. For Union, start with the Celina site of Ohio MARCS-IP: Multi-Agency Radio Communications, about 9 miles away. Its control channels: 772.98125, 774.58125 MHz.

Mercer County channels that also cover Union

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
Mercer County SheriffMercer County Sheriff – Tactical Channel153.9200FMNKZZ789
Mercer County SheriffMercer County Sheriff – Alternate155.5500
In 154.9500
FMNKZZ789
Mercer County SheriffMercer County Sheriff – Tactical Channel159.3750FMNKZZ789

Ohio MARCS-IP: Multi-Agency Radio Communications

AgencyDescriptionTalkgroupHexMode
Mercer County SheriffMercer County Sheriff – Dispatch54830d62eD
Mercer County SheriffMercer County Sheriff – Tactical Channel54826d62aD
Mercer County State CorrectionsAdult Parole Authority – Lima Unit52862ce7eD

Nearest trunked radio sites

Distances are measured from the center of Union.

Celina · Ohio MARCS-IP: Multi-Agency Radio Communications
RFSS 1 · Site 23 (hex 17) · NAC 346 · about 9 mi away
Control 772.98125, 774.58125
Voice 770.08125, 771.30625, 772.08125, 772.60625, 851.8125, 852.2625, 852.5625, 853.2125
Middle Point · Ohio MARCS-IP: Multi-Agency Radio Communications
RFSS 2 · Site 34 (hex 22) · NAC 349 · about 13 mi away
Control 773.48125, 773.73125
Voice 769.43125, 770.70625, 772.18125, 852.2375, 852.75, 855.6125
Wapakoneta · Ohio MARCS-IP: Multi-Agency Radio Communications
RFSS 1 · Site 22 (hex 16) · NAC 345 · about 18 mi away
Control 771.50625, 774.30625
Voice 769.35625, 769.70625, 770.03125, 770.43125, 851.1875, 851.9375, 853.225, 854.0875, 856.1875
What do these numbers mean?
Control channel
The frequency your scanner listens to first. It tells the scanner where each voice call is happening, so program it before anything else.
Voice
The other frequencies the site uses for calls. A trunking scanner follows them automatically once it has the control channel.
Site
One tower location of the system. Scanners show the number in decimal or hex, so both are listed.
RFSS (Radio Frequency Sub-System)
A group of sites run by the same controller. Large Project 25 systems can have several.
NAC (Network Access Code)
A hex code the site transmits. Your scanner can use it to ignore other systems on the same frequency.
Talkgroup
A virtual channel on a trunked system, such as one agency’s dispatch. Programming uses the decimal or hex number, depending on your scanner.