A number of years ago I remember using software that would allow me to use my GRE PSR500's control channel data output to monitor the control channel of a P25 700 MHz system. This software would show the site numbers and control channel frequencies of all adjacent sites and allow me to save a file with this information. I can't remember the name of the software. Does anyone have an idea what software that might be? I want to update active control channel frequency information for a large system.