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Old 02-19-2017, 1:00 PM
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Default 172.150 nac 247

Been seeing activity on 172.150 nac 247 Tg 1 Rid 772732, 772749. Loc- East Islip NY (Long Island). Could be coming from CT or NJ as I have received stuff from those two states.
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Old 02-19-2017, 1:16 PM
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Could it be TSA? Newark airport just had new TSA frequencies with non standard NACs
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Old 02-19-2017, 5:13 PM
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I was thinking that and checked the fed files for updates and see the freq is in use there but I have not seen the nac 247 listed . I am close to MacArthur in Islip and they have TSA there but usually they were on 172.9. Might take a ride there with the laptop and set the RF level low and see what pops up. Just kinda hard to go out on snooping missions with a wife and a 5 year old lol..
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Old 02-20-2017, 9:02 AM
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Quote:
Originally Posted by dave3825 View Post
Been seeing activity on 172.150 nac 247 Tg 1 Rid 772732, 772749. Loc- East Islip NY (Long Island). Could be coming from CT or NJ as I have received stuff from those two states.
Pensacola, FL TSA just recently installed two new repeaters, 172.150 Nac 0D6 and 172.900 Nac 02E. New repeaters with new Nacs and about 80% encrypted now.
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Old 02-20-2017, 9:27 AM
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172.1500 is generally TSA (there are exceptions, always) and based on many Reports both here and at The Fed Files Blog: TSA Frequency Updates
all the airports are

a. Changing NAC from $001 to a unique NAC per Airport
b. Input Freq for 172.9000 is now 163.8500 (NTIA Compliance)
c. input for the newer Freq's found, is till to be found, but is 162-166 area.


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Originally Posted by dave3825 View Post
Been seeing activity on 172.150 nac 247 Tg 1 Rid 772732, 772749. Loc- East Islip NY (Long Island). Could be coming from CT or NJ as I have received stuff from those two states.
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Old 02-20-2017, 12:00 PM
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Quote:
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Could it be TSA? Newark airport just had new TSA frequencies with non standard NACs
It appears that there is no longer a "standard NAC" for the TSA. They have been changing them to somewhat unique NACs per location/airport as they upgraded the radio hardware and encryption.

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