I have tried to test the range of CloseCall on my new BC125AT by using a FMR UHF radio.I found out that the detection range is around 10 yards for 0.5 watt. I then got my 5 watt 70cm ham radio, and the range was now around 20 yards. My BCT15 x has a range on UHF on around 40 yards for a 5 watt handheld. I know that CloseCall works OK on my BCT15x, after all it detects aircraft in the AM 118-136mhz band a mile away. But after the UHF test i am wondering what the range is on the police VHF band.