Some new federal interoperability frequencies have become active in the Lone Star state recently.
170.7250 MHz, P-25 is known as "Dallas East" in the DFW Metroplex,
171.4375 MHz, P-25 is known as "Dallas West".
The same frequencies have been heard in the Houston area, but they were called "L-1" and "L-2".
I've also received information that the 171.4375 MHz frequency is used as a federal interop channel in the Philadelphia area. It is referred to as the "FIO" channel.
Anyone else hearing activity on either of these frequencies?
THE FED FILES - Welcome to The Fed Files blog! This blog was originally built to support the "Fed Files" column in Monitoring Times magazine. Although the Fed Files, as well as Monitoring Times, ended with the December 2013 issue, this blog continues and is associated with the new federal monitoring column, Federal Wavelengths, in The Spectrum Monitor magazine. If you would like to make a comment, pass along a tip or frequency you can send it to my email address, chrisparris @ thefedfiles.com
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