For a while now I've been tracking the new APCO P-25 digital radio NET channels being deployed by the US Coast Guard. I've posted what I've found so far, but recently received some additional channels and thought I would post the updates along with the known channels.
So here are all the VHF P-25 channels that we have identified so far:
NET 01 139.9750
NET 02 140.4750
NET 03 140.7250
NET 04 141.6125
NET 05 150.7250
NET 06 141.5500
NET 07 150.3000
NET 08 162.0500
NET 09 162.1250
NET 10 162.2500
NET 11 162.3250
NET 12 163.0500
NET 13 163.1375
NET 14 164.3000
NET 15 164.3125
NET 16 164.5500
NET 17 164.5625
NET 18 164.9000
NET 19 164.9125
NET 20 165.2625
NET 21 165.3125
NET 22 165.3250
NET 23 165.3375
NET 24 166.1875
NET 25 167.9000
NET 26 168.8625
NET 27 171.2375
NET 28 172.3125
NET 29 165.2750
NET 30 171.2125
NET 31 171.3125
NET 32 171.3375
NET 33 171.3500
NET 34 171.3625
NET 50 172.0375
NET 51 165.4625
Here are all the UHF Coast Guard allocations with the identified P-25 NET names:
406.5000
406.5625
406.5750
406.6000
406.8000
406.8125
406.9750
407.6250
407.9250
407.9750
408.4000
409.0000
409.1875
409.2000
409.3500
409.8250
410.0250
410.3750
411.3750
411.7875 - NET 402
412.9750 - NET-409
413.0000 - NET-410
413.0250 - NET-411
413.0375
414.7625
415.6250
415.7750
415.8250
415.9250
416.2250
416.3875
416.4750
416.5500 - NET-4xx
416.5750
416.5875
416.6000
416.6375
416.7000
416.7125
416.8500
416.9250
416.9375
417.0000
418.3500
418.4375
418.4500
419.1250
419.6000
419.6500
419.8000
419.8250
419.8500
419.9750
The Coast Guard P-25 channels tend to us a NAC of N293. Encryption is used, some areas use it consistently, others not so much.
If you find any additional P-25 channels in use by the Coast Guard, please let me know!
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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