Actions

Montgomery County, MD (P25)

From The RadioReference Wiki

Revision as of 14:51, 10 September 2021 by Ericcarlson (talk | contribs)
Montgomery County, MD (P25) TRS
System Name Montgomery County, MD (P25)
System Type Project 25 Phase II
System ID 8E0
Connect Tone N/A
Wide Area Communications Network BEE00
Network Access Code N/A
TRBO Color Code
NXDN RAN
Band 800
Ownership Public
FCC License WRHY982
City Various
County Montgomery
State Maryland

Montgomery County, MD (P25) System DB Entry
Montgomery County, MD (P25) FCC Info
Maryland Discussion Forum

MediaWiki
QuickRef
PDF Card

Wiki HomeCollaboration GatewayMarylandMontgomery County → Montgomery County, MD (P25) TRS

Welcome to the Montgomery County, MD (P25) collaboration article, a Trunked Radio System located in Montgomery County, Maryland.
This is where you, the user, may index any articles you develop for scanning related topics for this Trunked Radio System.


  • Some talkgroups on this system may be using P25 Phase II TDMA modulation, which can only be monitored using a P25 Phase II capable scanner or receiver.
  • Click HERE for a list of scanners capable of monitoring those talkgroups.


Additional Callsigns

Radio IDs and Patterns

  • 00000xx Fire/Rescue and Police Dispatch
  • 0000205 M-NCPPC Park Police Dispatch
  • 0000260 M-NCPPC Park Police Dispatch
  • 0000404 Montgomery County Transportation Management Center Dispatch
  • 07008xx Montgomery County Radio Shop?
  • 0704xxx Montgomery County RideOn
  • 0705xxx Montgomery County RideOn
  • 070682x talkgroup 7366 encrypted
  • 2116754 Maryland Transportation Authority - Police
  • 2118160 Maryland Transportation Authority - Maintenance
  • 2119967 Maryland CHART
  • 2125xxx Maryland State Police
  • 2127xxx Maryland State Police
  • 2129xxx Maryland State Police
  • 2135520 Maryland Natural Resources Police
  • 2500xxx Montgomery County Fire/Rescue
  • 2501xxx Montgomery County Fire/Rescue
    • 2501329 NIST Fire
    • 2501344 NIST Fire
  • 2510xxx Montgomery County Police
  • 2511xxx Montgomery County Police
  • 2512xxx Montgomery County Police
  • 2513xxx Montgomery County Police
  • 2514xxx M-NCPPC Park Police
  • 2515xxx M-NCPPC Park Police, Rockville City Police
  • 2516xxx Sheriff
  • 2517xxx Police?
  • 2518xxx Police?

Unidentified Talkgroup Information

Unidentified Talkgroups

  • Probable Fire/Rescue
    • 4305 encrypted
    • 4955 encrypted
    • 4965 encrypted
  • Probable Law Enforcement
    • 6105 clear voice
    • 6115 clear voice
  • Other
    • 7230 clear voice
    • 7605 Radio Shop?
    • 7610 Radio Shop? - radio testing
    • 7630
    • 7685 radio testing
    • 7735 radio testing in Metro

Fire/Rescue Talkgroups to Find

https://www.montgomerycountymd.gov/frs-ql/Resources/Files/nsws/docs/Radio_One_Book.pdf

I'm looking over this Radio One Book (link above) and comparing it to the database. Here is what I've found different so far:

7A7 should be 7A7 DVRS-1A (digital conventional)
7A11 should be 7A11 DVRS-2A (digital conventional)
7A12 should be 7A12 MC S A12 (secure TG on Montgomery County system)
7A13 should be 7A13 MA S A13 (description is good as is)
7A14 should be 7A14 ALT A14
7A15 should be 7A15 FD TA (analog conventional)
7A16 should be 7A16 OPS 1 (described as "The MCFRS 7B Operations talkgroup" per https://mcfrsit.com/wordpress/finding-the-right-800-mhz-radio-fleetmap/)
7A17 should be 7A17 ANNC 10 (per http://mcfrsit.com/resource/800_p25_fleetmap_command.pdf)
7A18 is ANNC 20; 7B17 ANNC 30; 7B18 ANNC 40; 7C17 ANNC 50; 7C18 ANNC 60

7E has all of the special ops stuff, as seen in the Radio One Book. 7F is for coordination:

7F3 TRT S (Technical Rescue Team, secure)
7F5 RAIL S (Rail, secure)
7F6 HM S (HazMat, secure)
7F7 WTR S (Water Rescue Team, secure)
7F8 FS50 S 
7F9 FS51 S
7F10 FS52 S
7F11 FS53 S
7F12 FS54 S
7F13 MD TF-1 S (MD USAR Task Force 1, secure and also on a MA radio system)
7F14 ALT F14 (I don't think this one is secure)
7F15 FD TA (secure digital conventional)
7F16 OPS 1 (same as 7A16)
7G6 should be 7G6 CMF
7G7 MC Scty (MC Security)
7G8 MCPS Scty (MCPS Security)
7G9 M Col Scty (Montgomery College Security)
7G10 Animl Ctl (Animal Control)
7G14 ECC S (Emergency Communications Center, secure)
7G16 MC Radio
7G17 FEI S (MCFR Fire & Explosives Investigations, secure)
7G18 IA S (Inter-agency, secure)
7H12 MEDSTAR (all of these 7H# and below are TGs on MA radio systems)
7H13 Child NMC
7H14 INOVA
7H15 HCGH A (Howard adult)
7H16 HCGH P (Howard peds)
7H17 ALL MCHSP (secure, on MC radio)
7H18 MC H ANNC (secure, on MC radio)
7H19 HNET (not secure, on MC radio)

I is for IMT Secure (all are secure, zone # is 68, zone name "I IMT Secure")

I1 IMT 1 CMD S
I2 IMT 2 OPS S
I3 IMT 3 LOGS S
I4 IMT 4 S
...
I11 IMT 11 S
I12 IMT 12 ANNC S
I13 IMT13 DIR S
I14 IMT14 DVRS-6IS
I15 IMT 15 RINS1 D (secure digital conventional)
I16 IMT 16 RINS2 D (secure digital conventional)
J8 DVRS-7J (digital conventional)
J9 through J15 are secure and for Public Safety:
J9 PS 1 S
J10 PS 2 S
J11 PS 3 S
J12 PS 4 S
J13 PS ANNC S
J14 DVRS-6J S
J15 PS DIR S
J16 RINS 2 D (not secure)
L11 should be L11 LGCRD ANNC
L12 LGEM S (secure)
L13 LG DIR (not secure)
L14 DVRS-7L (digital conventional)
L15 RINS 1 D (analog conventional)


Related Links