On a recent visit to Hoover Dam and Lake Mead, near Las Vegas, I discovered a VHF trunking control channel. It appears to be a two-site VHF P-25 trunked system, likely to cover both the Hoover Dam area and likely the Lake Mead National Recreation Area.
I had received reports of hearing the control channel from site 2112 on 172.1375 MHz, and I found the control channel for site 2122 on 172.1375 MHz loud and clear at the Hoover Dam via a close call hit on my Uniden 436 scanner. I was unable to pick up the control channel from site 2112 on my visit.
It only shows two sites on the air right now, and no users were seen affiliating or using the system while I was monitoring. Both the Hoover Dam police and Lake Mead NRA operations were on their normal VHF conventional channels.
More information as the system usage increases.
Here is what I found via PRO96COM:
System ID : A52
WACN : BD000
Tower Number (Decimal): 2-122
Tower Number (Hex) : T027A
Flavor : Phase 1
-Tables
#Format: Table ID,Base Freq,Spacing,Input Offset,Assumed/Confirmed,BandWidth,Slots
00,171.00000,0.01250,-7.47500,"Confirmed",0.01250,1
01,171.00000,0.01250,-7.30000,"Confirmed",0.01250,1
02,171.00000,0.01250,-7.16250,"Confirmed",0.01250,1
-Frequencies
#Format: Channel,Usage,Frequency(/Slot),Input Channel,Input Frequency(/Slot),Input Explicit(1/0),Hit Count
"02-0089","c",172.11250,"02-0089",164.95000,0,0
-Neighbors
#Format: TowerID,TowerIDHex,System ID,Channel,Frequency,Tower Name
2112,"T0270",a52,"01-0091",172.13750,""
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
Pages
- Home
- Army Corps of Engineers Frequencies
- BATFE Frequencies
- CBP Frequencies
- DEA Frequencies
- Department of Agriculture Frequencies
- Department of Energy Frequencies
- Department of the Interior Frequencies
- FAA Frequencies
- FBI Frequencies
- Federal P-25 Radio Identifications
- FEMA Frequencies
- FPS Frequencies
- ICE Frequencies
- NASA Frequencies
- National Park Service
- Nationwide Military Frequencies
- Postal Service / Postal Inspection Service Frequencies
- State Department Frequencies
- Treasury Department Frequencies
- TSA Frequencies
- U.S. Capitol Police Frequencies
- US Coast Guard VHF/UHF Frequencies
- US Marshals Service
- US Secret Service/WHCA Frequencies