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San Diego Police Frequencies

San Diego in Duval County, Texas has 1 conventional frequency and 0 trunked talkgroups listed for local agencies. The closest trunked radio site we have is Freer (Greater Austin/Travis Regional Radio System (GATRRS)), about 25 miles away.

About San Diego Police Frequencies

  • 2 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
  • 1 conventional channel uses a digital mode (P25), which needs a scanner that decodes that mode.
  • Trunked radio systems that carry law-enforcement traffic here: Greater Austin/Travis Regional Radio System (GATRRS): 1 talkgroup. A trunking scanner is required, and it must support the system type shown.
  • To follow a trunked system, program a control channel first. For San Diego, start with the Freer site of Greater Austin/Travis Regional Radio System (GATRRS), about 25 miles away. Its control channels: 151.0625, 154.9875, 155.5875 MHz.

San Diego conventional frequencies

Dispatch

Dispatch frequencies for San Diego
AgencyDescriptionFrequency (MHz)ToneModeFCC
San Diego PoliceSan Diego Police – Dispatch155.3100FMWPPV223

Duval County channels that also cover San Diego

Dispatch

Dispatch frequencies for Duval County
AgencyDescriptionFrequency (MHz)ToneModeFCC
Duval County SheriffDuval County Sheriff – Dispatch155.0850NAC 2EEP25KBY874
Duval County SheriffDuval County Sheriff – Dispatch155.5350
In 156.0900
173.8 PLFMKBY874

Greater Austin/Travis Regional Radio System (GATRRS)

Greater Austin/Travis Regional Radio System (GATRRS) talkgroups
AgencyDescriptionTalkgroupHexMode
Duval County SheriffDuval County Sheriff – Dispatch3863f17D

Nearest trunked radio sites

Distances are measured from the center of San Diego.

Freer · Greater Austin/Travis Regional Radio System (GATRRS)
RFSS 1 · Site 52 (hex 34) · NAC 132 · about 25 mi away
Control 151.0625, 154.9875, 155.5875
Voice 156.1725
Kingsville · Coastal Bend Regional Interoperability Network
RFSS 61 · Site 61 (hex 3D) · NAC 47 · about 31 mi away
Control 851.05, 851.4, 852.05, 852.4, 853.05
Mathis · Coastal Bend Regional Interoperability Network
RFSS 43 · Site 43 (hex 2B) · about 35 mi away
Control 851.4625, 852.4625, 853.4625
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.

Common questions

What frequency do the police use in San Diego?

Dispatch channels listed for San Diego: San Diego Police 155.3100 MHz.