Friday, November 09, 2012

UHF Changes in Oak Ridge?

A recent posting in the Radio Reference forums has some information on what appears to the an additional P25 UHF trunked site from the National Nuclear Security Administration facility in Oak Ridge, TN. You can see the posting here:

The original poster did not list any system information, other than it is reporting as Site 002. The control channel frequencies he was hearing were 408.7125 & 410.1125 MHz. He also reported a voice channel of 408.2250 MHz. My suspicion is that this is an additional site to the already existing Oak Ridge DoE NNSA P25 trunked system:

If anyone has any additional information you want to pass along, please do!

UHF Changes in Pittsburgh?

I recently spotted an entry to the Radio Reference database showing a "new" federal UHF trunked system. You can check out the entry here:

The system is not new, and for you Fed Files readers, it appeared in the March, 2006 column. It belongs to the  National Nuclear Security Administration Bechtel Bettis Navy Reactor Facility in West Mifflin, PA a suburb of Pittsburgh. You can see more about this facility at these web sites:

The entry in the Radio Reference database indicates that they may have changed some frequencies in the system since I last monitored it. Originally I had it using these channels:

406.9750 MHz
407.1375 MHz
407.3875 MHz
407.7875 MHz
408.1750 MHz

New new listing has added a frequency of 406.3375 MHz and deleted the 407.1375 MHz channel. Probably some additional re-shuffling of the federal UHF assignments.