I am beginning to map out this large passport system using SDR-Trunk. So far I've confirmed three sites within my range of reception. The data coming from the Cascade, MD site is showing that there is a neighbor site using 461.4125. I believe this is going to be the site located near Bedford, PA with license WPSQ972. Would someone near that area be able to confirm if there are Passport signals in use on any of these four frequences, especially the first? 461.4125, 452.2375, 452.2625, and 452.3625 This particular user has been pretty good about giving a CWID every so often so you may even be able to confirm the particular license in use. If this is confirmed, I will add it as the Bedford, PA site for this system. Thanks.