ISP District-Chicago Changes

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werinshades

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Does anyone else who text tags the ISP Radio ID's noticed District-Chicago has changed their numbers around? C-153 is now C-104, C-212 is now C-123...etc.
 

N9JIG

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I wonder if they just stopped trying to keep the radio ID's matching the car numbers. Consoles can be easily programmed to alias the numbers to show the trooper's OTA radio number regardless of the Radio ID.

IIRC they used a related number for portables as well as the car.
 

werinshades

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I wonder if they just stopped trying to keep the radio ID's matching the car numbers. Consoles can be easily programmed to alias the numbers to show the trooper's OTA radio number regardless of the Radio ID.

IIRC they used a related number for portables as well as the car.
The pattern they use is the badge# matches the beat number. It would appear the entire District-Chicago has been revised, but Districts 2 & 5 have not yet. I've also noticed some District 2 cars in District-Chicago patrol assignments and working on District-Chicago talk groups. Might be related to the shootings and extra cars on patrol, but they are utilizing them for normal operations. I'm just wondering if anyone knows the reason for the change?
 

MikeyC

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I wonder if they just stopped trying to keep the radio ID's matching the car numbers. Consoles can be easily programmed to alias the numbers to show the trooper's OTA radio number regardless of the Radio ID.

IIRC they used a related number for portables as well as the car.
Dist. 15 is the only ISP district where the radio ID reflects the car ID. For example, 15115 is "15-115" (Or when on the D15 channels, "Car 115") and 16115 is 15-115's portable. This holds true even for the utility cars. 15272 would be "utility car 272" (when the trooper's assigned car is out of service) but the officer uses their normal radio ID.

In the rest of the districts, the radio signatures follow the pattern <Zone><Radio Type><Officer ID>. Radio type is 0 = car, 1 = portable, 4 = motorcycle. 1005358 is 17-24's car radio and 1105358 is the portable. You'll hear them reference their (or a supervisor's) ID number when calling in for overtime or time off ... "Authority 4885, my ID is 5358" would be 17-3 authorizing something for 17-24.

Another pattern is used for the utility cars (and pool cars?) and "other radios" ... <Zone><District or Division><Unique ID>. 1317201 is a utility car for Dist. 17.

Some of the other division numbers I've been able to identify (I would love to be able to fill in the holes) are -

24 - TRT
37 - EPU
72 - Weigh stations
74 - Riverboat

Along those lines, the dispatch radios used to follow a pattern too - <Zone><Radio Type = 9><District><Dispatch Position><Radio ID>. The radio ID per talkgroup was more of a pre-consolidation thing as now they seem to use the same radio on multiple talkgroups.

For example, 1917101 was Dist. 17 dispatch, position 1, on 17-A.

For now at least up here in the north, 1904279 -1904387 is ISP Sterling (Dist. 1, 7, 16, 17) and 1904391 - 1904398 is ISP Chicago (Dist. 2, Chicago, Joliet). 2906291 - 2906297 is ISP Pontiac (Dist. 6, 8, 10)
 

kevino

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Dist. 15 is the only ISP district where the radio ID reflects the car ID. For example, 15115 is "15-115" (Or when on the D15 channels, "Car 115") and 16115 is 15-115's portable. This holds true even for the utility cars. 15272 would be "utility car 272" (when the trooper's assigned car is out of service) but the officer uses their normal radio ID.

In the rest of the districts, the radio signatures follow the pattern <Zone><Radio Type><Officer ID>. Radio type is 0 = car, 1 = portable, 4 = motorcycle. 1005358 is 17-24's car radio and 1105358 is the portable. You'll hear them reference their (or a supervisor's) ID number when calling in for overtime or time off ... "Authority 4885, my ID is 5358" would be 17-3 authorizing something for 17-24.

Another pattern is used for the utility cars (and pool cars?) and "other radios" ... <Zone><District or Division><Unique ID>. 1317201 is a utility car for Dist. 17.

Some of the other division numbers I've been able to identify (I would love to be able to fill in the holes) are -

24 - TRT
37 - EPU
72 - Weigh stations
74 - Riverboat

Along those lines, the dispatch radios used to follow a pattern too - <Zone><Radio Type = 9><District><Dispatch Position><Radio ID>. The radio ID per talkgroup was more of a pre-consolidation thing as now they seem to use the same radio on multiple talkgroups.

For example, 1917101 was Dist. 17 dispatch, position 1, on 17-A.

For now at least up here in the north, 1904279 -1904387 is ISP Sterling (Dist. 1, 7, 16, 17) and 1904391 - 1904398 is ISP Chicago (Dist. 2, Chicago, Joliet). 2906291 - 2906297 is ISP Pontiac (Dist. 6, 8, 10)
Other than the zone number for the first digit, I had never noticed this RID convention for non-tollway ISP mobiles and portables. Thanks for sharing this information, MikeyC!
 
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