T4Win
From The RadioReference Wiki
T4Win ... Trunker for Windows ... is a native Windows program for decoding and displaying live activity on one or more trunked radio systems by decoding the control channel of each system. This program was introduced in beta form in 2003. It has since been withdrawn from active development. The last version of this program can be downloaded here
The author has taken time off to work several other projects including ...
- pro96dmp
- UniTrunker
Meanwhile, take a look at the Trunker and UniTrunker pages.