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Philadelphia Police Frequencies

We do not have frequencies listed specifically for Philadelphia in Cass County, Illinois yet. Countywide channels for Cass County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Bluff Springs (STARCOM21 Statewide Illinois), about 11 miles away.

About Philadelphia Police Frequencies

We don't have any verified police frequencies for Philadelphia yet, but we're working on adding some.

If you know of any, or spot something wrong on a nearby page, please send it to contact@police-frequencies.com and we'll check it against the official records.

Nearest trunked radio sites

Distances are measured from the center of Philadelphia.

Bluff Springs · STARCOM21 Statewide Illinois
RFSS 2 · Site 9 (hex 9) · NAC 14C · about 11 mi away
Control 770.66875, 774.03125, 860.8375
Voice 769.96875, 858.8375, 860.8875
Atterberry · STARCOM21 Statewide Illinois
RFSS 2 · Site 32 (hex 20) · NAC 147 · about 17 mi away
Control 851.95, 852.475, 853.3125
Voice 851.425, 853.8875, 859.3625
Lynnville · STARCOM21 Statewide Illinois
RFSS 2 · Site 38 (hex 26) · NAC 14B · about 21 mi away
Control 851.8875, 852.4125, 852.9375
Voice 851.3625, 853.4625, 858.3375
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.