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Tuesday, September 10, 2019

VHF Marine Channel Number Changes

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The US Coast Guard has a nice chart of the numbering changes on some of the VHF marine radio channels used in the United States. Here is a l...
Thursday, August 08, 2019

ELMR 14C Sites in Barstow CA

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On a recent drive between Las Vegas and Burbank, I ran across two ELMR 14C sites in Barstow, CA supporting the Marine Corps Logistics Cen...
Sunday, July 07, 2019

Providence, RI

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Time for an update to the Fed Files blog! I recently spent a few days in the downtown Providence area and had some interesting federal rad...
Friday, April 12, 2019

US Miltary P25 Low Band Report

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I have reported several sources indicating that they have heard some P-25 digital modes in to 30 - 88 MHz VHF low band that were assumed to ...
Saturday, April 06, 2019

More DEA VHF Transition

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Some new VHF frequencies likely being used by the DEA have been heard active in the San Francisco Bay Area in California. Here are the c...

New Federal UHF Trunked System in Austin, TX

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A new UHF P25 trunked system in the UHF band has been reported in the Austin, Texas area. Discussions on Radio Reference can be followed her...
Saturday, March 23, 2019

Super Bowl 53 Wrap Up

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Here are the listings of frequencies I logged during my two weeks of work in Atlanta at Super Bowl 53. While not all of the activity w...
Friday, March 01, 2019

New Federal Bay Area VHF Trunking?

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Reports have been posted on Radio Reference about a new VHF trunking control channel being heard in the San Francisco Bay area of Northern C...
Friday, January 25, 2019

Super Bowl 53 Updates

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Once again I am at Super Bowl LIII in Atlanta, Georgia. I will post some limited updates on federal activity here, but nothing on active ope...
Saturday, December 29, 2018

New Email Address

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I have started using a new email address for communications related to the magazine column and other federal monitoring. You can email me at...
Friday, December 28, 2018

Tournament of Roses Parade

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For the first time in a while I will not be working on the television coverage of the Tournament of Roses Parade in Pasaden...
Wednesday, October 10, 2018

TSA Moving to UHF Channels?

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A recent posting in the Federal Business Opportunities website, https://www.fbo.gov/index?s=opportunity&mode=form&id=25449a5f51bc288...
Monday, October 08, 2018

US Park Police in DC Move to P25 Finally

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It appears from postings on the Scan-DC mail list that the venerable US Park Police analog radio system may have finally met it's demise...

New Federal Trunking in DC?

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Over last weekend I noticed reports on Radio Reference of a new VHF trunking control channel being heard in Virginia around the Washington D...
Saturday, August 11, 2018

Unidentified Federal Trunked System A52

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A quick update on the unidentified P-25 trunked sites I and others have heard in the Las Vegas area. Radio reference has updated the entry f...
Sunday, June 03, 2018

TSA Dropped 172.9000 MHz?

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Back when the Transportation Security Administration (TSA) began operations in 2002, they were originally under the Department of Transporta...

Federal/Military use of NXDN

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   I recently saw some discussions about some VHF federal frequencies being used for an NXDN IDAS trunked system in Southern California. Mon...
Tuesday, April 24, 2018

USS Portland HYDRA System

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https://en.wikipedia.org/wiki/USS_Portland_(LPD-27) Here is a rundown of the Portland HYDRA shipboard trunked system: USS Portland...
Tuesday, April 10, 2018

LAKE MEAD NRA Update

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A quick update on an item I posted nearly a year ago: https://mt-fedfiles.blogspot.com/2017/07/new-vhf-trunking-at-lake-mead.html At the ...