Is anyone else experiencing this? I upgraded from a ~'97 1.7 which faithfully detected every Wal-mart in the vicinity, but now have a unit which spontaneously alerts on K (high signal strength alerts, frequently giving a lock tone) with no apparent K source. The alerts all have the same characteristics in common: sudden frontal alert at high signal strength (no brap-brap leading up to a stronger alert, it's initially alerting at multiple LEDs, often a lock tone) followed by a rapid loss of "signal" within 2-3 seconds. The arrows do not switch to the rear, so I doubt I'm passing legitimate K sources. I'm in the SF Bay area, and am not aware of any agencies that actually use K -- it's all Ka. I know about the solar operated drones on 280, but that's not what I'm hitting. So far I've experienced the bursts on 87, 101, 280, and 17 (for those familiar with the area). It's so annoying that I've had to disable K detection entirely since it's constantly going off. Did I just get a dog which needs to be sent back or is this a software issue that won't be fixed with a replacement? I've got a 2000 mile drive coming up next month so I really need to have reliable K detection. Current config: X and K bands disabled due to falses. Detector received Monday and is definitely 3.826. TIA.