For those who would like the frequency's these are the current ones the city uses :
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formerly Public Works/Streets and Sanitation & Misc. Agencies
Snow Command operations roughly parallel the above and will be heard primarily on channels 1, 7 and 8. Channels may also be referred to as "Fleets". Some systems/radios may have channels 1 & 7 reversed.
Frequency License Type Tone Alpha Tag Description Mode Tag
453.65000 KRM715 RM 107.2 PL Chi Str N1&2 Streets - North Bureau 1 & 2 [F-1] FM Public Works
453.72500 KRM715 RM 107.2 PL Chi Forst/AC Bureau of Forestry / Animal Control [F-2] FM Public Works
453.77500 KRM715 RM 107.2 PL Chi Tow/Park Traffic/City Towing [F-3] FM Public Works
453.82500 KRM715 RM 107.2 PL Chi HHS/Rev Health and Human Services,/Dept of Revenue FM Public Works
453.97500 KRM715 RM 107.2 PL Chi Electric Bureau of Electricity [F-5] FM Public Works
453.67500 KRM715 RM 107.2 PL Chi Swer/DOT Sewers/Chicago Dept of Transportation FM Public Works
453.10000 KBJ308 RM 107.2 PL Chi Loop B3 Loop - Operations Bureau 3 (some ops may be encrypted 1/08) FM Public Works
453.55000 KRM715 RM 107.2 PL Chi San Sout Streets - South Bureau 4 & 5 [F-8] FM Public Works
853.21250 KXF483 RM 107.2 PL Chi Str&San Streets & Sanitation FM Public Works
453.50000 KRM715 BP CSQ Chi Str&San Paging FM