TSA Busy!

With the security level at US airports now at ORANGE, the TSA has been extremely busy with the added security checks. If you live near an airport with commercial air service, try these frequencies and see what's going on:

166.4625 MHz - DHS Common
169.3000 MHz - TSA input to 172.9000 repeater
172.1500 MHz - TSA Simplex
172.9000 MHz - TSA Repeater or Simplex

All TSA communications are using P-25 digital mode. This channel plan should be used nationwide, with the exception of the DFW Airport in Grapevine, Texas. They are using a repeater on 169.1625 MHz, input of 165.0750 MHz. So far no encryption has been noted on TSA frequencies.

USCG "LANT" & "PAC" List

I've recently received some requests for information on the current status of the US Coast Guard "LANT" frequency lists. They have been floating around the Internet for a while but they seem to vary from source to source. The LANT designation appears to be short for ATLANTIC, however these frequencies are noted in use all over. Here's one of several versions of the LANT channels and some use notes:

155.4750 LANT 01
163.1750 LANT 02 USCG C3 Repeater (162.050 in)
162.1250 LANT 03 USCG TAC 1
162.2250 LANT 04
162.2500 LANT 05 USCG Operations
162.3250 LANT 06 USCG TAC 2
162.3500 LANT 07
162.6125 LANT 08
163.0500 LANT 09 USCG Enforcement (162.125 in)
163.1750 LANT 10 USCG Simplex
163.3750 LANT 11
164.3000 LANT 12 NYC
164.9125 LANT 13 NYC Repeater - Harbor Patrols
165.2375 LANT 14 DHS CBP Customs TAC 1
165.2625 LANT 15 USCG Law Enforcement C3
165.3125 LANT 16
165.3375 LANT 17
164.7750 LANT 18 US Army Corps of Engineers (165.975 in)
165.2375 LANT 19 DHS CBP Customs NET 1 (166.4375 in)
166.4625 LANT 20 DHS Common
165.2375 LANT 21 DHS CBP Customs NET 6 (166.4875 in)
166.5875 LANT 22 DHS USCG Tactical
167.9000 LANT 23 DHS USCG Portable Repeater Talk-Around
164.5500 LANT 24 DHS USCG OCDETF Repeater(168.8625 in)
171.3375 LANT 25 USCG Law Enforcement C4

There have been many variations of this LANT list, but this seems to be the most current. And yes, I have some frequencies that are identified as "PAC" channels as well. These are reported as allocated to the USCG District 11 (Southern California):

165.3375 PAC 01 (162.1250 in)

167.9000 PAC 02 (162.3250 in)

165.3125 PAC 03 (164.3000 in)

165.3125 PAC 04

164.3000 PAC 05 (165.3125 in)

165.3375 PAC 06

162.1250 PAC 07 (166.3375 in)

168.5000 PAC 08 (165.3125 in)

I have no current info on the use of these PAC channels. But I did hear from a listener in Southern California who heard two CG helos on 163.1750 MHz and referred to it as "LE-4".

Any more additions or corrections? Let me know!