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Charles County

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Charles County TRS
System Name Charles County
System Type Motorola Type II Smartnet
System ID A42E
Connect Tone 138.46
Wide Area Communications Network
Network Access Code None
TRBO Color Code
NXDN RAN
Band 800mhz
Ownership Public
FCC License WPZR834 WPZH908
City Centered LaPlata Radio Station RD
County Charles County (MD)
State Maryland (US)

Charles County System DB Entry
Charles County FCC Info
Maryland Discussion Forum

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Wiki HomeCollaboration GatewayMaryland (US)Charles County (MD) County → Charles County TRS

Welcome to the Charles County collaboration article, a Trunked Radio System located in Charles County (MD) County, Maryland (US).
This is where you, the user, may index any articles you develop for scanning related topics for this Trunked Radio System.



Charles County utilizes a Motorola Trunking Radio System for Fire, EMS, Sheriff's Office, Public Works, VanGO and other county services.

Fire/EMS Dispatch

Fire and EMS are dispatched using 155.085MHz WNCB949 . This dispatch channel is also simulcasted on the 800 MHz TRS using talkgroup 17040 10A1 Dispatch Main.

Fire/EMS Tactical Talkgroup Usage

Charles County utilizes 8 talkgroups for Fire and EMS. After being dispatched, units move to their assigned tactical channel for operations. County 911 monitors all tactical channels. Usually EMS calls share 10A2 while 10A3 formerly Tac 2 and 10A4 formerly Tac 3 are generally for fires, HAZMAT, rescue, and other larger incidents. 10A5 is used for Water Supply sometimes, 10A6 is used for Patched talkgroups weither via RIN's or 8 National Tac and Calling Channels.

10prefix NEW- Prior- User

  • 10A2 -Tac 1- EMS
  • 10A3 -Tac 2- Fire/Rescue
  • 10A4 -Tac 3- Fire/Rescue
  • 10A5 -Tac 4- Fire/Rescue
  • 10A6 -Tac 5- Fire/Rescue
  • 10A7 -Tac 6- Fire/Rescue
  • 10A8 -Tac 7- Fire/Rescue

Law Enforcement Talkgroup Usage

Sheriff's Office

The are two main dispatch talkgroups and 2 special talkgroups Laplata is 16464 (D1) and Waldorf is 16496(D3) . There are Tac talkgroups that are used sporadically as most of the traffic occurs on main.

Maryland State Police

Maryland State Police utilizes talkgroup 18592 as part of their communications system with Low-Band still inside the cars on their mobiles.


Fire/EMS Paging Frequency

The existing paging system frequency (155.0850) has been licensed for paging.

New TRS

According to a "slow growth" request letter, Charles County is planning for a new Motorola P-25 Phase II TRS in the next 15 years. They've already had the talk.

WPZH908

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WPZR834

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Related Wiki Pages

Related Pages

Return to the Wiki pages: Maryland Counties


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