Set your receiver to 4095.0, USB, and you will catch a lot of them. Right now (3:10 PM PDT) W is coming in about 4095.495 with chirp during the transmission (low battery/solar power?), there's a beeper coming in about 4095.895, one about 4096.200, and finally one at 4097.055. Try same at 4079.0, 4087.0 and 8000.5. As far as I know all of these are scattered along the California/Nevada/Arizona line. Ed