Hopefully someone here can help me out. I’m using the SDS100 and I have very few issues while using it around where I live (Broward & Palm Beach Counties),, however when I travel to certain places it doesn’t work so well. I tried it in Baltimore City, Prince George County MD, Bucks County PA and even City of Miami and it doesn’t really hold on anything or very rarely. It will stop on a TG but then just start scanning again while someone is still transmitting, or sometimes it just keeps scanning not stopping on a TG even though there’s traffic on that TG (confirmed). I did notice most of these systems are Simulcast and when I was in Bucks County if I held or touched the scanner it seemed to work better if that makes any sense. Looking for any suggestions as I'm about to go to Baltimore again in a few months. if I remember correctly I tried the stock antenna and a telescoping antenna and neither made a difference.