Difference between revisions of "Charles County (MD) TRS Information"

Revision as of 07:05, 11 April 2016

New name	Old name	Moto id	Description	TGID
10A1	F/E Main	801065	Fire Ems Dispatch	17040
10A2	TAC 1	201066	Ems Tac	17056
10A3	TAC 2	801067	Fire Tactical	17072
10A4	TAC 3	801068	Fire Tactical	17096
10A5	TAC 4	801069	Water Supply	17072
10A6	TAC 5	801070	M/A Fire Tac	17072

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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Scanner Band Plan Settings

Uniden Scanners have to be set-up to receive Rebanded Band Plans and/or Firmware may have to be updated

Software Support for Uniden Rebanding

Band Plan	Base Freq (lower)	Base Freq (upper)	Offset	Polarity	Spacing
1	851.025	854.000	440	+	25 khz
2	851.0125	868.9875	0	+	25 khz

GRE/RS/Whistler

Table Line	Chan Lo	Chan Hi	Base Freq	Offset	Spacing
0	440	559	851.02500	440	25 khz
1	0	719	851.01250	0	25 khz

Return to DB page: Charles County 800mhz Rebanded System, Charles County Maryland
Return to Wiki page: Charles County (MD), Trunked Radio Systems (MD), Maryland Counties

@@ Line 92: / Line 92: @@
 == Scanner Band Plan Settings ==
-Uniden Scanners have to be set-up to receive Rebanded Band Plans and/or Firmwares have to be updated
+Uniden Scanners have to be set-up to receive Rebanded Band Plans and/or Firmware may have to be updated
 ;[[Software Support for Uniden Rebanding]]
 {| border="1" cellpadding="3" style="vertical-align:top;BORDER-COLLAPSE: collapse" colspan="2"
@@ Line 116: / Line 116: @@
 |25 khz
 |}
-GRE/Whistler
+GRE/RS/Whistler
 {| border="1" cellpadding="3" style="vertical-align:top;BORDER-COLLAPSE: collapse" colspan="2"
-! Band Plan
+! Table Line
-! Base Freq (lower)
+! Chan Lo
-! Base Freq (upper)
+! Chan Hi
+! Base Freq
 ! Offset
-! Polarity
 ! Spacing
 |-
-|1
+|0
-|851.025
+|440
-|854.000
+|559
+|851.02500
 |440
-|<nowiki>+</nowiki>
 |25 khz
 |-
-|2
+|1
-|851.0125
+|0
-|868.9875
+|719
+|851.01250
 |0
-|<nowiki>+</nowiki>
 |25 khz
 |}