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The CPD's system is rarely used and when it is used usually I hear TGID# 352. In the database it says it's president/governor protection but neither of them are in town (that I know of). What is the TG then? And also the marine unit is on the trunked system, but I never hear anything. On the other hand, when i listen to radioman911's feed: ( Radioman911 on Justin.tv ) I hear them. Is the system still relevant and in use? If not what frequencies do the cpd's marine unit use?

If you don't know what trunking system i am referring to, here Chicago Public Safety & Services Trunking System, Chicago, Illinois - Scanner Frequencies