Tri-County Area Radio Frequencies

[G1G4]

The following thread is a comprehensive guide to all frequencies and trunking id's for the tri-county area radio systems. This is done to keep all frequencies in an orderly area and easier to access. There are a few terms you should know before attempting to program your scanner.

Conventional Frequencies - These are standard frequencies that don't require any trunking capable scanners. These usually include simulcasts of main fire channels.
Alpha Tag - An alpha tag indicates what may be displayed on the user's display.
Mode - The mode on which a conventional frequency is transmitted.

These lists will be updated accordingly. If any changes are made to the following frequencies, they will be updated ASAP.

 

[G1G4]

Calvert County Fire Frequencies

33.820 - Fire Dispatch (Simulcast) - FM
154.28 - FMARS (Fire Mutual Aide Radio System) - FM
154.295 - FMARS - FM

Calvert County Police Frequencies

39.280 - State Police - FM

The following are trunked frequencies. You need a trunking scanner capable of tracking Motorola Type II Smartnet Systems

866.91250 - Trunking Channel
867.13750 - Trunking Channel
867.18750 - Trunking Control Channel
867.25000 - Trunking Control Channel
868.35000 - Trunking Control Channel

The following are talkgroups for Calvert County Fire to be used in conjunction with the trunked frequencies

1840 - Fire Main
1872 - Fire Tac 1
1904 - Fire Tac 2
1936 - Fire Tac 3
1968 - Fire Mutual Aide Channel 1 (Mainly used for St. Mary's)
2032 - Fire Training Channel
2704 - Benedict Channel 1 (Used by Charles County Units)

The following are talkgroups for Calvert County Police to be used in conjunction with the trunked frequencies

1616 - Police Main
1648 - Police Tac 1
1680 - Police Tac 2
1712 - Police Tac 3
1744 - Police Training
2064 - Jail

 

[G1G4]

Charles County Fire Frequencies

158.775 - Fire Dispatch (Old, Simulcast) - FM
155.085 - Fire Dispatch (Simulcast of Fire Main) - FM
155.535 - Fire Tac 1 (Simulcast) - FM
158.865 - Fireground - FM
158.9550 - Fireground - FM
154.28 - FMARS - FM


Charles County Police Frequencies

155.61 - Sheriff La Plata (backup) - FM
155.64 - Sheriff Alternate/Tactical (backup) - FM
155.67 - Sheriff (backup) - FM
155.535 - Sheriff Waldorf Talkaround (backup) - FM
155.97 - Sheriff (backup) - FM
155.91 - Sheriff (backup) - FM

The following are trunked frequencies. You need a trunking scanner capable of tracking Motorola Type II Smartnet Systems

866.07500 - Trunking Channel
866.32500 - Trunking Channel
866.56250 - Trunking Channel
867.06250 - Trunking Channel
868.26250 - Trunking Alternate Control Channel
868.37500 - Trunking Control Channel
868.65000 - Trunking Alternate Control Channel
868.90000 - Trunking Alternate Control Channel

The following are talkgroups for Charles County Fire to be used in conjunction with the trunked frequencies

848 - Mutual Aide Channel
880 - Mutual Aide Channel
17040 - Fire Main
17056 - Fire Tac 1
17072 - Fire Tac 2
17088 - Fire Tac 3
17104 - Fire Tac 4
17120 - Fire Tac 5
17136 - Fire Training
17152 - MAR 1
17168 - MAR 2
17184 - MAR 3
17200 - MAR 4
17216 - EMS Secure Channel (Encrypted, no access to public radio)
17232 - Tac 6 (Patch to St. Mary's Fire)

The following are talkgroups for Charles County Police to be used in conjunction with the trunked frequencies

16464 - Sheriff's Office La Plata
16480 - Sheriff's Office Indian Head
16496 - Sheriff's Office Waldorf
16512 - Sheriff's Office Waldorf West (Future Use)
16528 - Sheriff's Office Tac 1
16544 - Sheriff's Office Tac 2
16560 - Sheriff's Office Tac 3
16576 - Sheriff's Office Tac 4
16592 - Sheriff's Office Operations Channel
16624 - Sheriff's Office Secure Channel (Encrypted, no access to public radio)
16640 - Sheriff's Office Encrypted Channel (Encrypted, no access to public radio)
16688 - Sheriff's Office Court Security
16704 - Animal Control
16736 - Sheriff's Office Encrypted (Encrypted, no access to public radio)
16784 - Jail

 

[G1G4]

St. Mary's County Fire Frequencies

154.98 - Fire Dispatch (Simulcast of Fire Main) - FM
154.28 - FMARS - FM

The following are trunked frequencies. You need a trunking scanner capable of tracking EDACS (Standard) Systems

866.16250 - Trunking Channel
866.43750 - Trunking Channel
866.76250 - Trunking Channel
867.47500 - Trunking Channel
867.63750 - Trunking Channel
867.77500 - Trunking Channel
867.93750 - Trunking Channel
868.15000 - Trunking Channel
868.72500 - Trunking Channel
868.78750 - Trunking Channel

The following are talkgroups for St. Mary's County Fire to be used in conjunction with the trunked frequencies

785 - Fire Dispatch (Primary)
786 - Fire Dispatch 2 (Used for EMS)
787 - Meet 1
788 - Meet 2
801 - Tac 1
802 - Ops 1A
803 - Ops 1B
804 - Ops 1C
817 - Tac 2
818 - Ops 2A
819 - Ops 2B
820 - Ops 2C
833 - Tac 3
834 - Ops 3A
835 - Ops 3B
836 - Ops 3C
849 - Tac 4
850 - Ops 4A
851 - Ops 4B
852 - Ops 4C
865 - SMH 1 (Backup to EMRC radio)
866 - SMH 2
867 - SMH 3
868 - Syscom 1
869 - Syscom 2
870 - Syscom 3
881 - Hazmat Ops (Encrypted, no access to public radio)

The following are talkgroups for St. Mary's County Police to be used in conjunction with the trunked frequencies

273 - Sheriff's Dispatch North
274 - Sheriff's Dispatch South
275 - Sheriff's Dispatch Main
276 - Sheriff's Supervisor
277 - Courthouse
278 - Police Channel (Used for high priority crimes, allows interops between Sheriff and State Police)
279 - CID
280 - SOD
289 - Sheriff Tac 1
290 - Sheriff Tac 2
291 - Sheriff Tac 3
292 - Sheriff Tac 4
293 - Sheriff Tac 5
294 - Sheriff Tac 6
305 - County Detention Center (CDC)
1041 - State Police Dispatch
1042 - State Police Tac 1
1043 - State Police Tac 2
1044 - State Police Tac 3

 

[StadEMS3]

Thank's for the info- I think I'm going to take my scanner to Radio Shack to add St Mary's, they did Chuck County for me when I lived there. Programming not like the old days.

 

[G1G4]

St. Mary's is REALLY easy to program, ASLONG as you know how EDACS works. EDACS uses LCN, which means you can't use the 0 channel to put in your first trunking freq. You put your trunking freq's in order, then enter trunk mode, put the talkgroup id's in order, and voila.