I frequently travel through the Mojave area on SR 58. I never hear any traffic from a CHP mobile unit that has pulled over someone for speeding on the standard Gold frequencies for that area (Base 42.120 and Mobile 42.200). Does anyone who is familiar with that region know what the CHP uses for traffic control frequencies? Are they using local sheriff frequencies? I monitor all the CHP frequencies while in Mojave area, but do not hear the report from the CHP officer who has just pulled over a motorist and asks the dispatcher for registration and driver license information. While monitoring all the frequencies, I’ve witness the officer talk on the radio but never hear the traffic. I’m looking for someone to respond who has first hand knowledge of what they do in that area.