JANET HANDOFF FREQUENCIES 121.9 McCarran Ground Control 119.9 McCarran Tower 133.95 Departure Control 119.35 Nellis Control 120.35 Groom Approach 127.65 Groom Tower 118.45 Groom Ground Here are some other Groom freqs. The security frequencies are usually scrambled, but not always. 418.05 Cammo Dudes (primary) 408.4 Cammo Dudes (repeat of 418.05) 142.2 Cammo Dudes 170.5 Cammo Dudes (Channel 3) 138.3 "Adjustment Net" (seems related to security) 261.1 Dreamland Control (published) 255.5 Groom Tower (repeat of 127.65) 154.86 Lincoln County Sheriff 496.25 Road sensors on public land 410.8 Pager (apparently from Groom but unconfirmed) The most accurate way to detect a road sensor (AFTER you have tripped it), is to program 496.25 into several channels of your scanner, then scan those channels exclusively as you are driving. When the scanner stops on one channel, you have just passed a sensor.