It is possible that the NCHP units were not conducting any voice traffic with Asheville dispatch, but rather checking drivers' license information and other DMV and CJIN queries via their laptops.
Looking at your Win 96 file, though, you wouldn't have heard any traffic from the NCHP units because you're missing some frequencies.
The low band NCHP frequencies, with the exception of channel 19 and the talk-around channels, are paired ... in your area, 42.620 is paired with 42.780 MHz.
Dispatch will talk on 42.62, and cars will respond on 42.780. Your file is missing the mobile side of the channel pair - 42.78 MHz.
Being that the NCHP cars were so close to your house, you might also heave heard them if one of the troopers was using the mobile extender, EXCEPT your file is also missing one of the frequencies in the mobile extender pair.
The mobile extenders allow the trooper, when they are outside the car, to use the low band radio via a high band handheld. When the low band radio is receiving communications, the high band mobile extender automatically keys up on 155.445 and broadcasts what's airing over the low band radio.
The trooper hears the communications on his handheld, which is receiving on 155.445. If he wants to respond, he keys up the handheld, which transmits on 154.920 MHz.
The mobile extender in the car is listening on this frequency, and receives the trooper's transmission. A relay patches the trooper's communications to the low band radio.
Your Win96 file is missing 154.920 ... the frequency you would hear the troopers talking on when the mobile extender is on.
Jeff Multer
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