As I understand the psr600 has a "patch" feature. The fire dispatcher here in Omaha, Ne dispatches on two different channels, one for fire and the other one for medical since an engine company is always sent on medical calls. I used to see the indication "ptch" in place of the "tgrp". I am not seeing the patch indication at all now. Is there any type of setting I may have accidently shut off that would prevent the receiving of patches from taking place??