Was monitoring regional fire/Amb calls recently at my Loveland QTH and noticed my SDS 200 was receiving traffic from the DTRS site--DIA Office Building. I formerly had no success monitoring this site. I created an alias in sdr trunk for the site and imported all talk groups. To my surprise this site was booming in and dominated heavily by RTD traffic. In the past,I occasionally received rtd traffic off of Thorodin and an Adams county site but not much activity. I decided to also check the DIA airport Trunk and was pleasantly surprised that this simul was booming in as well! Give em a try! My antenna is an 800 mhz yagi at 25' pointed south. Looks as if some work has been done out there recently on these sites?