USPIS Green spotted in Kingman - 407.1375 NAC 482

[IC-R20]

On Airway Avenue around 4PM I was trying to find the frequencies the ARC Thrift Store uses on their handhelds and was running a spectrum sweeper on the UHF band when I got a really strong signal breaking squelch.

Right as I was leaving the parking lot I kept getting a hit on 407.1375 with a NAC of 482, referencing the Wiki NAC list and MT FedFiles website confirms this to be the USPIS 'Green' frequency. It was encrypted of course but the signal was moving around like handhelds leaving Walmart, must've been a stop break or something.

I used to actually live near the main post office here and kept an ear out on the federal and any other odd ranges and watched the loading docks but never saw any staff with radios or heard anything so it's presumed RF free most of the time. I was also there earlier on the way with the UHF sweep still running and never got anything but the N7DPS repeater nearby.

Anyone else up and down the freeway from here should keep your ears on as well.

 

[ecps92]

Those ENC channels for the USPIS are for the Postal Inspectors, most General Post Offices have no Radios and the only other known facilities/units to use radios besides the Postal Inspectors and Postal Police are the Sorting & Distribution facilities, many which have gone DMR

 

[AZMONITOR]

It's interesting what you can find when searching between 406 and 420 MHz. Linking frequencies to different repeaters on mountain tops can often be heard. On very large wildland fires the BLM sometimes sets up portable repeaters for logistical purposes and sometimes to link one repeater with other repeater. Back in the 1980s' DEA frequencies would often be found here with a lot of the traffic unencrypted in the big cities. Where I reside there are times when the NOAA NWS VHF radio will be out of service but the uplink is operating carrying the weather info that I wish to hear. I dedicate one radio to regularly search between 406 and 420 MHz.

 

[ecps92]

It's interesting what you can find when searching between 406 and 420 MHz. Linking frequencies to different repeaters on mountain tops can often be heard. On very large wildland fires the BLM sometimes sets up portable repeaters for logistical purposes and sometimes to link one repeater with other repeater. Back in the 1980s' DEA frequencies would often be found here with a lot of the traffic unencrypted in the big cities. Where I reside there are times when the NOAA NWS VHF radio will be out of service but the uplink is operating carrying the weather info that I wish to hear. I dedicate one radio to regularly search between 406 and 420 MHz.

Expand your search to be 400-420, it might surprise you to see what (Non Orbital) LMR is hidden 400-406

yup,. those links are used all over (Not just out west - plenty here in New England) but alas those who search are a rare find

If I recall, your DEA FO's moved from UHF to VHF