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North Laurel Police Frequencies

We do not have frequencies listed specifically for North Laurel in Howard County, Maryland yet. Countywide channels for Howard County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Jessup (Integrated Wireless Network (IWN) National Capital Region), about 4 miles away.

About North Laurel Police Frequencies

  • 1 conventional channel is analog FM, so any scanner can receive it. Enter the frequency and set the tone shown in the table.
  • Trunked radio systems that carry law-enforcement traffic here: Central Maryland Area Regional Communications Committee (CMARC): 1 talkgroup; First Responders Interoperable Radio System Team (FIRST): 237 talkgroups; Howard County, MD: 16 talkgroups; Integrated Wireless Network (IWN) National Capital Region: 3 talkgroups; and 1 more. A trunking scanner is required, and it must support the system type shown.
  • To follow a trunked system, program a control channel first. For North Laurel, start with the Jessup site of Integrated Wireless Network (IWN) National Capital Region, about 4 miles away. Its control channels: 169.7125, 170.5, 170.8125 MHz.
  • 161 listed entries are marked encrypted. No scanner can decode encrypted audio.

Howard County channels that also cover North Laurel

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
Howard County SheriffTalkaround (Fire A12/B12/C12/D12)856.2375FMNWPQX905

Central Maryland Area Regional Communications Committee (CMARC)

AgencyDescriptionTalkgroupHexMode
MiscellaneousBaltimore Environmental Police9325246dD

First Responders Interoperable Radio System Team (FIRST)

AgencyDescriptionTalkgroupHexMode
Bowie State UniversityBowie State University – Dispatch144163850T
Frostburg State UniversityFrostburg State University – Dispatch118552e4fT
Maryland Capitol PoliceHeadquarters78671ebbT
Maryland Department of HealthSpring Grove Hospital Center Police81962004T
Maryland Department of HealthEastern Shore Hospital Center Police82152017T
Maryland Department of Labor, Licensing, and RegulationMaryland Department of Labor, Licensing, and Regulation – Dispatch81201fb8T
Maryland State PoliceNorthern Troop73011c85T
Maryland State PoliceBarrack D Bel Air73021c86T
Maryland State PoliceBarrack F North East73031c87T
Maryland State PoliceBarrack M JFK73041c88T
Maryland State PoliceCentral Troop73131c91T
Maryland State PoliceBarrack G Westminster73141c92T
Maryland State PoliceBarrack R Golden Ring73151c93T
Maryland State PoliceBarrack A Waterloo73161c94T
Maryland State PolicePikesville HQ73171c95T
Maryland State PoliceEastern Troop73271c9fT
Maryland State PoliceBarrack S Centreville73281ca0T
Maryland State PoliceBarrack I Easton73291ca1T
Maryland State PoliceBarrack E Salisbury73301ca2T
Maryland State PoliceBarrack V Berlin73311ca3T
Maryland State PoliceBarrack X Princess Anne73321ca4T
Maryland State PoliceWashington Metro Troop73451cb1T
Maryland State PoliceBarrack N Rockville73461cb2T
Maryland State PoliceBarrack Q College Park73471cb3T
Maryland State PoliceBarrack L Forestville73481cb4T
Maryland State PoliceSouthern Troop73571cbdT
Maryland State PoliceBarrack P/J Glen Burnie/Annapolis73581cbeT
Maryland State PoliceBarrack H La Plata73591cbfT
Maryland State PoliceBarrack U Prince Frederick73601cc0T
Maryland State PoliceBarrack T Leonardtown73611cc1T
Maryland State PoliceWestern Troop73721cccT
Maryland State PoliceBarrack W McHenry73731ccdT
Maryland State PoliceBarrack C Cumberland73741cceT
Maryland State PoliceBarrack O Hagerstown73751ccfT
Maryland State PoliceBarrack B Frederick73761cd0T
Maryland Transit AdministrationMaryland Transit Administration – Dispatch – North79991f3fT
Maryland Transit AdministrationMaryland Transit Administration – Dispatch – South80011f41T
Maryland Transportation AuthorityCentral Command71011bbdT
Maryland Transportation AuthorityPort of Baltimore/Key Bridge71021bbeT
Maryland Transportation AuthorityBWI Airport71031bbfT
Maryland Transportation AuthorityIntercounty Connector71041bc0T
Maryland Transportation AuthorityHatem Bridge/ICC71051bc1T
Maryland Transportation AuthorityBay Bridge71061bc2T
Maryland Transportation AuthorityNice Bridge71071bc3T
Morgan State UniversityMorgan State University – Dispatch8476211cT
Towson UniversityTowson University – Dispatch81511fd7T
University of BaltimoreUniversity of Baltimore – Dispatch81481fd4T
University of Maryland - BaltimoreUniversity of Maryland – Baltimore – Dispatch84712117T
University of Maryland - College ParkUMCP Police Dispatch84512103T
Maryland Aviation AdministrationLaw Tactical80181f52T
Maryland Capitol PoliceEvents78681ebcT
Maryland Department of Natural ResourcesNatural Resources Police – Reserve Officers839920cfT
Maryland Department of Public Safety and Correctional ServicesJudiciary Special Police Officers Tactical84992133T
Maryland State PoliceMotor (Motorcycle Unit)74321d08T
Maryland State PoliceCommercial Vehicle Enforcement Division74631d27T
Maryland Transit AdministrationMaryland Transit Administration – Tactical Channel80001f40T
Maryland Transit AdministrationMaryland Transit Administration – Tactical Channel80021f42T
Maryland Transportation AuthorityTraining71401be4T
Maryland Transportation AuthorityTraining71411be5T
Maryland Transportation AuthorityTraining71421be6T
Morgan State UniversityMorgan State University – Tactical Channel8477211dT
Morgan State UniversityMorgan State University – Tactical Channel8478211eT
Towson UniversityTowson University – Tactical Channel81521fd8T
Towson UniversityTowson University – Tactical Channel81531fd9T
Towson UniversityTowson University – Tactical Channel81541fdaT
Towson UniversityTowson University – Tactical Channel81551fdbT
Towson UniversityTowson University – Tactical Channel81561fdcT
University of BaltimoreUniversity of Baltimore – Tactical Channel81491fd5T
University of BaltimoreUniversity of Baltimore – Tactical Channel81501fd6T
University of Maryland - BaltimoreUniversity of Maryland – Baltimore – Tactical Channel84722118T
University of Maryland - BaltimoreUniversity of Maryland – Baltimore – Tactical Channel84732119T
University of Maryland - College ParkUMCP Police Tactical84522104T
University of Maryland - College ParkUMCP Police Tactical84532105T
University of Maryland - College ParkUMCP Police All Call84572109T
Maryland Department of Natural ResourcesNatural Resources Police – Area 3 Tactical75741d96T
Maryland Department of Natural ResourcesInservice (Training – Instructors)75881da4T
Maryland Department of Natural ResourcesInservice (Training)75891da5T
Maryland Department of Natural ResourcesInservice (Training)75901da6T
Maryland Department of Natural ResourcesNatural Resources Police – Recruit Training14219378bT
Maryland Department of Public Safety and Correctional ServicesJudiciary Special Police Officers Main85002134T
University of Maryland - College ParkUMCP Police Training84542106T
University of Maryland - College ParkUMCP Student Police Aides84552107T
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C177011e15T
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C277021e16T
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C377031e17T
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C477041e18T
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C577051e19T
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C677061e1aT
Maryland Department of Public Safety and Correctional ServicesWarrant Apprehension Unit (WAU) – West77071e1bT
Maryland Department of Public Safety and Correctional ServicesWarrant Apprehension Unit (WAU)77081e1cT
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C977091e1dT
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C1077101e1eT
Maryland Department of Public Safety and Correctional ServicesMaryland Central Transportation Unit C1177111e1fT
Maryland Department of Public Safety and Correctional ServicesHome Detention Unit77161e24T
143 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
FederalNational Park Service National Capital Region Law Enforcement841520dfT
Johns Hopkins UniversityPolice 1144013841T
Maryland Department of Natural ResourcesNatural Resources Police – Area (Prince George's/Anne Arundel)75011d4dT
Maryland Department of Natural ResourcesNatural Resources Police – Area (Carroll, Howard, Montgomery, Tidal Waterways of Baltimore City and Baltimore County)75061d52T
Maryland Department of Natural ResourcesNatural Resources Police – Area (Baltimore City (Land)/Baltimore County (Land)/Harford/Cecil)75111d57T
Maryland Department of Natural ResourcesNatural Resources Police – Area (Frederick/Washington)75161d5cT
Maryland Department of Natural ResourcesNatural Resources Police – Area (Allegany/Garrett)75211d61T
Maryland Department of Natural ResourcesNatural Resources Police – Area (Calvert/Charles/St. Mary's)75461d7aT
Maryland Department of Natural ResourcesNatural Resources Police – Area (Somerset/Wicomico/Worcester)75511d7fT
Maryland Department of Natural ResourcesNatural Resources Police – Area (Caroline/Dorchester/Kent/Queen Anne/Talbot)75571d85T
Johns Hopkins UniversityPolice 2144023842T
Johns Hopkins UniversityPolice 3144033843T
Johns Hopkins UniversityPolice 4144043844T
Johns Hopkins UniversityPolice 5144053845T
Johns Hopkins UniversityPolice 6144063846T
Johns Hopkins UniversityPolice 7144073847T
Johns Hopkins UniversityPolice 8144083848T
Maryland Department of Natural ResourcesNatural Resources Police – Area 3 Tactical75021d4eT
Maryland Department of Natural ResourcesNatural Resources Police – Area 3 Tactical75031d4fT
Maryland Department of Natural ResourcesNatural Resources Police – Area 5 Tactical75071d53T
Maryland Department of Natural ResourcesNatural Resources Police – Area 5 Tactical75081d54T
Maryland Department of Natural ResourcesNatural Resources Police – Area 6 Tactical75121d58T
Maryland Department of Natural ResourcesNatural Resources Police – Area 6 Tactical75131d59T
Maryland Department of Natural ResourcesNatural Resources Police – Area 7 Tactical75171d5dT
Maryland Department of Natural ResourcesNatural Resources Police – Area 7 Tactical75181d5eT
Maryland Department of Natural ResourcesNatural Resources Police – Area 8 Tactical75221d62T
Maryland Department of Natural ResourcesNatural Resources Police – Area 8 Tactical75231d63T
Maryland Department of Natural ResourcesNatural Resources Police – Tactical Response Team75331d6dT
Maryland Department of Natural ResourcesNatural Resources Police – Area 4 Tactical75471d7bT
Maryland Department of Natural ResourcesNatural Resources Police – Area 4 Tactical75481d7cT
Maryland Department of Natural ResourcesNatural Resources Police – Area 1 Tactical75521d80T
Maryland Department of Natural ResourcesNatural Resources Police – Area 1 Tactical75531d81T
Maryland Department of Natural ResourcesNatural Resources Police – Area 2 Tactical75581d86T
Maryland Department of Natural ResourcesNatural Resources Police – Area 2 Tactical75591d87T
Maryland State PoliceNorthern Troop – Tactical73051c89T
Maryland State PoliceBarrack D Bel Air – Tactical73061c8aT
Maryland State PoliceBarrack F North East – Tactical73071c8bT
Maryland State PoliceBarrack M JFK – Tactical73081c8cT
Maryland State PoliceNorthern Troop – CID73091c8dT
Maryland State PoliceBarrack D Bel Air – CID73101c8eT
Maryland State PoliceBarrack F North East – CID73111c8fT
Maryland State PoliceBarrack M JFK – CID73121c90T
Maryland State PoliceCentral Troop – Tactical73181c96T
Maryland State PoliceBarrack G Westminster – Tactical73191c97T
Maryland State PoliceBarrack R Golden Ring – Tactical73201c98T
Maryland State PoliceBarrack A Waterloo – Tactical73211c99T
Maryland State PolicePikesville HQ – Tactical73221c9aT
Maryland State PoliceCentral Troop – CID73231c9bT
Maryland State PoliceBarrack G Westminster – CID73241c9cT
Maryland State PoliceBarrack R Golden Ring – CID73251c9dT
Maryland State PoliceBarrack A Waterloo – CID73261c9eT
Maryland State PoliceEastern Troop – Tactical73331ca5T
Maryland State PoliceBarrack S Centreville – Tactical73341ca6T
Maryland State PoliceBarrack I Easton – Tactical73351ca7T
Maryland State PoliceBarrack E Salisbury – Tactical73361ca8T
Maryland State PoliceBarrack V Berlin – Tactical73371ca9T
Maryland State PoliceBarrack X Princess Anne – Tactical73381caaT
Maryland State PoliceEastern Troop – CID73391cabT
Maryland State PoliceBarrack S Centreville – CID73401cacT
Maryland State PoliceBarrack I Easton – CID73411cadT
Maryland State PoliceBarrack E Salisbury – CID73421caeT
Maryland State PoliceBarrack V Berlin – CID73431cafT
Maryland State PoliceBarrack X Princess Anne – CID73441cb0T
Maryland State PoliceWashington Metro Troop – Tactical73491cb5T
Maryland State PoliceBarrack N Rockville – Tactical73501cb6T
Maryland State PoliceBarrack Q College Park – Tactical73511cb7T
Maryland State PoliceBarrack L Forestville – Tactical73521cb8T
Maryland State PoliceWashington Metro Troop – CID73531cb9T
Maryland State PoliceBarrack N Rockville – CID73541cbaT
Maryland State PoliceBarrack Q College Park – CID73551cbbT
Maryland State PoliceBarrack L Forestville – CID73561cbcT
Maryland State PoliceSouthern Troop – Tactical73621cc2T
Maryland State PoliceBarrack P/J Glen Burnie/Annapolis – Tactical73631cc3T
Maryland State PoliceBarrack H La Plata – Tactical73641cc4T
Maryland State PoliceBarrack U Prince Frederick – Tactical73651cc5T
Maryland State PoliceBarrack T Leonardtown – Tactical73661cc6T
Maryland State PoliceSouthern Troop – CID73671cc7T
Maryland State PoliceBarrack P/J Glen Burnie/Annapolis – CID73681cc8T
Maryland State PoliceBarrack H La Plata – CID73691cc9T
Maryland State PoliceBarrack U Prince Frederick – CID73701ccaT
Maryland State PoliceBarrack T Leonardtown – CID73711ccbT
Maryland State PoliceWestern Troop – Tactical73771cd1T
Maryland State PoliceBarrack W McHenry – Tactical73781cd2T
Maryland State PoliceBarrack C Cumberland – Tactical73791cd3T
Maryland State PoliceBarrack O Hagerstown – Tactical73801cd4T
Maryland State PoliceBarrack B Frederick – Tactical73811cd5T
Maryland State PoliceWestern Troop – CID73821cd6T
Maryland State PoliceBarrack W McHenry – CID73831cd7T
Maryland State PoliceBarrack C Cumberland – CID73841cd8T
Maryland State PoliceBarrack O Hagerstown – CID73851cd9T
Maryland State PoliceBarrack B Frederick – CID73861cdaT
Maryland State PoliceExecutive Protection Section73981ce6T
Maryland State PolicePro-Active Criminal Enforcement Team74041cecT
Maryland State PoliceMaryland State Police – Tactical Channel74051cedT
Maryland State PoliceMaryland State Police – Tactical Channel74061ceeT
Maryland State PoliceOffice of the State Fire Marshal – Northeast Regional Office74121cf4T
Maryland State PoliceMaryland State Police – Tactical Channel74131cf5T
Maryland State PoliceMaryland State Police – Tactical Channel74171cf9T
Maryland State PoliceMaryland State Police – Tactical Channel74191cfbT
Maryland State PoliceMaryland State Police – Tactical Channel74221cfeT
Maryland State PoliceMaryland State Police – Tactical Channel74231cffT
Maryland State PoliceMaryland State Police – Tactical Channel74261d02T
Maryland State PoliceMaryland State Police – Tactical Channel74291d05T
Maryland State PoliceMaryland State Police – Tactical Channel74301d06T
Maryland State PoliceMaryland State Police – Tactical Channel74421d12T
Maryland State PoliceMaryland State Police – Tactical Channel74481d18T
Maryland State PoliceMaryland State Police – Tactical Channel74521d1cT
Maryland State PoliceMaryland State Police – Tactical Channel74531d1dT
Maryland State PoliceMaryland State Police – Tactical Channel74561d20T
Maryland State PoliceExecutive Protection Section – Tactical74671d2bT
Maryland State PoliceSTATE Team74691d2dT
Maryland State PoliceMid-Shore Law Tactical74821d3aT
Maryland State PoliceOffice of the State Fire Marshal – Upper Eastern Regional Office74911d43T
Maryland State PoliceMaryland State Police – Tactical Channel74991d4bT
Maryland Transit AdministrationMaryland Transit Administration – Tactical Channel80031f43T
Maryland Transportation AuthoritySOD Tactical71091bc5T
Maryland Transportation AuthoritySOD Tactical71101bc6T
Maryland Transportation AuthoritySOD Tactical71111bc7T
Maryland Transportation AuthoritySpecial Response Team71121bc8T
Maryland Transportation AuthorityCID71131bc9T
Maryland Transportation AuthorityCentral Command Tactical71251bd5T
Maryland Transportation AuthorityKey Bridge Tactical71261bd6T
Maryland Transportation AuthorityPort of Baltimore Tactical71271bd7T
Maryland Transportation AuthorityIntercounty Connector Tactical71281bd8T
Maryland Transportation AuthorityBay Bridge Tactical71301bdaT
Maryland Transportation AuthorityNice Bridge Tactical71311bdbT
Maryland Transportation AuthorityCVSU71321bdcT
Maryland Transportation AuthorityAggressive Driving Unit Tactical71331bddT
Maryland Transportation AuthorityK9 Tactical71341bdeT
Maryland Transportation AuthorityMotors71351bdfT
Maryland Transportation AuthorityMarine Unit71361be0T
Maryland Transportation AuthoritySpecial Event71371be1T
Comptroller of MarylandComptroller Investigations Unit – Main82262022T
Comptroller of MarylandComptroller Investigations Unit – Tactical82272023T
Comptroller of MarylandComptroller Investigations Unit – Tactical82282024T
Maryland Department of Natural ResourcesNatural Resources Police – Wireless Communications Managers75291d69T
Maryland Department of Natural ResourcesNatural Resources Police – Training Academy839220c8T
Maryland State PoliceAcademy Training85012135T
Maryland State PoliceAcademy Training85022136T
Maryland State PoliceAcademy Training85032137T
Maryland Department of Public Safety and Correctional ServicesCentral Booking77171e25T
Maryland Department of Public Safety and Correctional ServicesCentral Booking77181e26T
Maryland Department of Public Safety and Correctional ServicesCentral Booking77201e28T

Howard County, MD

AgencyDescriptionTalkgroupHexMode
Howard County SheriffNorth Dispatch (Fire A9/B9/C9/D9)109612ad1D
Howard County SheriffSouth Dispatch (Fire A10/B10/C10/D10)109632ad3D
Maryland State PoliceMaryland State Police Barrack A Waterloo (patch to FIRST)110162b08D
ServicesDetention Center110502b2aD
12 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
ServicesServices – Dispatch110312b17D
Howard County SheriffDistrict 2 Secure109642ad4D
Howard County SheriffAlpha 3/Bravo109672ad7D
Howard County SheriffAlpha109682ad8D
Howard County SheriffAlpha109692ad9D
Howard County SheriffAlpha 6 – Car to Car North109702adaD
Howard County SheriffBravo109712adbD
Howard County SheriffBravo109722adcD
Howard County SheriffBravo109732addD
Howard County SheriffCharlie109822ae6D
Interop/EmergencyInterop/Emergency – Tactical Channel110572b31D
ServicesCorrections110412b21D

Integrated Wireless Network (IWN) National Capital Region

3 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
SurveillanceSurveillance (partial encryption)356508b42D
SurveillanceSurveillance (partial encryption)356518b43D
SurveillanceSurveillance (partial encryption)356538b45D

Justice Integrated Wireless Network

AgencyDescriptionTalkgroupHexMode
Washington State PatrolD1 Olympia59108e6e4D
Washington State PatrolD1 East Pierce59109e6e5D
Washington State PatrolD1 West Pierce Tacoma59110e6e6D
Washington State PatrolD1 Dispatch A1159111e6e7D
Washington State PatrolD2 Seattle Metro59208e748D
Washington State PatrolD2 North King59209e749D
Washington State PatrolD2 South King59210e74aD
Washington State PatrolD2 Seattle Area59211e74bD
Washington State PatrolD2 Dispatch A1259212e74cD
Washington State PatrolD3 Kennewick Area59308e7acD
Washington State PatrolD3 Dispatch A0959309e7adD
Washington State PatrolD3 Dispatch A1059310e7aeD
Washington State PatrolD3 Union Gap Area59311e7afD
Washington State PatrolD4 Colville Area59408e810D
Washington State PatrolD4 Spokane Area59409e811D
Washington State PatrolD4 Colfax Area59410e812D
Washington State PatrolD5 Dispatch A0859508e874D
Washington State PatrolD5 Kelso Area59509e875D
Washington State PatrolD5 Vancouver Area59510e876D
Washington State PatrolD6 Dispatch A0859608e8d8D
Washington State PatrolD6 Dispatch Ellesnburg59609e8d9D
Washington State PatrolD6 Ephrata Area59610e8daD
Washington State PatrolD6 Dispatch A1159611e8dbD
Washington State PatrolD6 Wenatchee Area59612e8dcD
Washington State PatrolD7 Bellingham Area59708e93cD
Washington State PatrolD7 West Snohomish County59709e93dD
Washington State PatrolD7 Mount Vernon Area59710e93eD
Washington State PatrolD7 Dispatch A1159711e93fD
Washington State PatrolD8 Dispatch Kitsap/Mason59808e9a0D
Washington State PatrolD8 Dispatch A0959809e9a1D
Washington State PatrolD8 Dispatch A1059810e9a2D
Washington State PatrolD2 Seattle Area Tactical59206e746D
Washington State PatrolD1 Car59101e6ddD
Washington State PatrolD1 Car59102e6deD
Washington State PatrolD1 Car59103e6dfD
Washington State PatrolD2 Car59201e741D
Washington State PatrolD2 Car 2 Metro59202e742D
Washington State PatrolD2 Car59203e743D
Washington State PatrolD3 Car59301e7a5D
Washington State PatrolD3 Car59302e7a6D
Washington State PatrolD4 Car59401e809D
Washington State PatrolD4 Car59402e80aD
Washington State PatrolD5 Car59501e86dD
Washington State PatrolD5 Car59502e86eD
Washington State PatrolD6 Car59601e8d1D
Washington State PatrolD6 Car59602e8d2D
Washington State PatrolD7 Car59701e935D
Washington State PatrolD7 Car59702e936D
Washington State PatrolD8 Car59801e999D
Washington State PatrolD8 Car59802e99aD
Washington State PatrolWSP Academy Olympia59950ea2eD
3 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Federal Bureau of InvestigationWA State Operations13103332fD
Federal Protective ServiceFPS WA ops136383546D
Federal Protective ServiceOregon Operations136393547D

Nearest trunked radio sites

Distances are measured from the center of North Laurel.

Jessup · Integrated Wireless Network (IWN) National Capital Region
RFSS 17 · Site 1 (hex 1) · about 4 mi away
Control 169.7125, 170.5, 170.8125, 172.575, 173.025
Greenbelt · Integrated Wireless Network (IWN) National Capital Region
RFSS 5 · Site 1 (hex 1) · NAC 011 · about 10 mi away
Control 169.6, 170.875, 171.275, 172.625
BWI Airport · Maryland Aviation Administration
RFSS 1 · Site 1 (hex 1) · NAC 1B0 · about 10 mi away
Control 851.2625, 851.725, 852.275, 852.325
Voice 852.8625, 854.4625, 859.1375
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.