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US > Illinois > Cook (County) > Cook County Sheriff/Corrections

Cook County Sheriff/Corrections

This system is deprecated, and may no longer be in use or is superseded by another system.

System Name:Cook County Sheriff/Corrections
Location:Cook County, IL
System Type:Motorola Type II SmartZone
System Voice:Analog and APCO-25 Common Air Interface
Last Updated:July 24, 2018, 5:44 pm (Updated General Trunked System Information)

Important Rebanded Note

One or more sites for this trunking system have gone through the 800 MHz rebanding process. Your scanner may be incompatible, require a firmware update or require special programming to track these sites. Please visit the RR Wiki Rebanding page for additional information.

System ID List

System ID   Connect Tone  
761B   116.13

Latest News Update Posted on 2012-04-11 20:50:53

The former “761B” Motorola SmartZone system used by Cook County became a new node (5) for StarCom21 in
2011. Site numbers, talkgroup ID’s and radio ID’s are all coordinated with StarCom21 and roaming will be
allowed for some or all radios. All Cook County operations (TGID’s in the 25000 series are encrypted.

 Click Here to Display All Past News Updates (8 Total)

Misc System Information

See the CARMA Cook County Profile for more information

10/12 - Listener reports Site 8 is still used.  It appears the site was rebanded but operations on that site were not fully moved over to Starcom21.

10/06 - Another STA for this system http://wireless2.fcc.gov/UlsApp/ApplicationSearch/applFreqSum.jsp?applID=3686851
Locations: 2325 North Meacham Road, Schaumburg
1903 Ruby Street (IL Route 64 & Ruby), Melrose Park
1728 Cherry, Northfield
108 South Barrington Road, Barrington
2650 South California Ave, Chicago

Call sign for this system is expired, WPEV426, they are requesting an STA to relicense this system with additional sites.

The current system will go from Motorola Single Site Smartnet system into a Motorola Smartzone System. Some of the existing frequencies will be used and some will move +/- 12.5 creating 2 channels for the North/South Zone. The County Jail campus system will utilize 7 new frequencies that are unusable in this market, bringing the total number of frequencies to 42. 10 North Smartzone Simulcast, 10 South Smartzone Simulcast, 12 at the Jail campus, and 5 2-channel low power IR () users. The 5 new IR sites will localize campus type in-building radio traffic at several different County Courthouses. The jail will have 6 low power campus frequncies and 6 wide area frequencies. This will complete the County's radio system modifications.

This radio system is used to provide dispatch services, life & property protection for the County of Cook, including the Cook County Sheriff's Department, Department of Corrections, Boot Camp, Court Services, Facilities Management, Department of Community Services and Invtervention, Vehicle Services, Custodial, Police Department, Adult Probation, Juvenlie, Forest Preserve Police, Highway and the States Attorney office.

North Simulcast Sites are: Barrington, Melrose Park, Northfield, Shaumburg; Des Plaines, Chicago (2), Deerfield, Hoffman Estates

South Simulcast Sites are: Palos Park, Bedford Park, Oak Forest, Steger, Chicago; Bridgeview, Homewood, Blue Island, Chicago, La Grange Park

System Frequencies
Red (c) are primary control channels | Blue (a) are alternate control channels | Site Map(s): FCC Callsigns RR Locations

001 (1) South Simulcast (Off air, now SC21)851.100 851.150 851.3125 852.2625 852.6125a 853.500a 851.700 852.2375
    851.2875 853.525c 853.775a          
002 (2) North Simulcast (Off air, now SC21)851.125 851.175 851.6125 851.725 852.050 852.2125 852.2875c 857.5625a
    853.1375a 853.2625a            
003 (3) Northfield (Off air, now SC21)851.200 852.3375c            
004 (4) Schaumburg (Off air, now SC21)851.750c 852.1625            
005 (5) Skokie (Off air, now SC21)851.225 852.1875c            
006 (6) La Grange Park (Off air, now SC21)852.0875 853.7375c            
007 (7) Oak Forest (Off air, now SC21)853.0625 853.6875c            
008 (8) Jail / Courthouse Simulcast853.2625 851.2875a 852.1375 852.7125c 852.800c 853.6125c 851.575 851.825
    852.850 853.2375 853.5875 853.8375        

System Talkgroups
List All in one table     Show New Talkgroups

Cook County Sheriff Talkgroups

DEC HEX Mode  Alpha TagDescriptionTag  
2480 09b A ISPERN*P ISPERN Patch (155.475)  Law Talk 
35408 8a5 DE CCSP B1-Nort CCSP Band 1 - North Patrol (was 155.595 simulcast)  Law Dispatch 
35600 8b1 DE CCSP B2-Sout CCSP Band 2 - South Patrol (155.535 simulcast)  Law Dispatch 
36880 901 DE CCSP B3-A/W CCSP Band 3 - Administration/Warrants (154.995 simulcast)  Law Dispatch 
36944 905 DE CCSP B5-Aux CCSP Band 5 - Auxillary Repeater (155.640 simulcast)  Law Dispatch 

Cook County Corrections Talkgroups

DEC HEX Mode  Alpha TagDescriptionTag  
1616 065 A Division 1 Division 1  Law Tac 
1648 067 A Division 2 Division 2  Law Tac 
1680 069 A Receiving Receiving Room  Law Tac 
1712 06b A Division 4 Division 4  Law Tac 
1744 06d A Division 5 Division 5  Law Tac 
1776 06f A Division 6 Division 6  Law Tac 
1808 071 A Crmk EMS/Jan Cermak EMS / Janitors  Law Tac 
1840 073 A Division 3/8 Division 3 & 8 (D.W.J.S)  Law Tac 
1872 075 A Division 9 Division 9  Law Tac 
1904 077 A BC&D 10 Building Control & Division 10  Law Tac 
1936 079 A Division 11 Division 11  Law Tac 
2000 07d A CCDC Exp Op CCDC External OP's 1 & 2 simulcast of TG 2000 & 2032 Sysid 4034  Law Tac 
2032 07f A CCDC Ext Op CCDC External Operations 2  Law Tac 
2064 081 A Ktch/Sanit Central Kitchen/Sanitation  Law Tac 
2096 083 A RR Support Support (Radio Room)  Law Tac 
2128 085 A Jail Tac 1A Jail Tactical 1A  Corrections 
2160 087 A Jail Tac 2A Jail Tactical 2A  Corrections 
2192 089 A Jail Tac 3A Jail Tactical 3A  Corrections 
2224 08b A Jail Tac 4A Jail Tactical 4A  Corrections 
2288 08f A SORT 1 SORT 1 (3600-units)  Law Tac 
2320 091 A CommandPost Command Post  Law Tac 
2384 095 A Simulcast Simulcast on All talk groups ????????  Law Tac 
2448 099 A DSCI 154.995 DCSI (154.9950)  Law Tac 
2512 09d A BtCmp Div12 Boot Camp Division 12  Corrections 
2544 09f A Jail/Custod Janitors/Custodians  Public Works 
2576 0a1 A Maint 1 Maintenance 1  Public Works 
2608 0a3 A Maint 2 Maintenance 2  Public Works 
2736 0ab A DSCI 2736 DCSI  Law Tac 
2800 0af A DSCI 2800 DCSI  Law Tac 
2832 0b1 A DSCI 2832 DCSI  Law Tac 
3472 0d9 A CCSD Control Court Services Department  Corrections 
3536 0dd A Court 26/Cal 26th & California Courts  Corrections 
3728 0e9 A JDC Juvenile Detention Center  Corrections 
40816 9f7 AE DOC 40816 Corrections (partially encrypted)  Corrections 

Cook County Services Talkgroups

DEC HEX Mode  Alpha TagDescriptionTag  
16 001 A Radio Techs Radio Technicians  Business 
16400 401 D Radio Techs Radio Technicians  Business 
49424 c11 A Radio Techs Radio Technicians - Testing (possibly new talkgroup for the Midlothian (470.7375) net)  Business 

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