Thursday, July 18, 2024

MYSTERY FREQUENCY - 406.2875 MHz

I have had reports over several years of activity noted on 406.2875 MHz. My records did not have this assigned to any specific federal agency, but monitoring notes from various locations do record some activity on this frequency.  

Treasury/IRS Philadelphia, PA DMR

Federal Bureau of Prisons, Butner NC - part of the prison trunked system

Florida - Unknown location using DMR, heard in Orlando

Texas - Unknown location using DMR, heard in San Antonio 

Houston, TX - Heard over several years in analog using DCS 205, possible National Guard 

Kansas City, MO - Unknown agency using P25 with a NAC of N293 

Anyone else hearing activity on this frequency? 

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