There's a K-band drone by me at a particular intersection, I haven't identified the source, but it's not a door opener as this is where 2 major highways intersect with no commercial buildings in sight. The XTR-695 alerted with K band signal strength of 1 - 4.... The STi-r... SILENT. Wondering if this is filtering or not.. I guess I'll have to go hunt down some Belton units that are still running K band to find out.