Difference between revisions of "Transportation Security Administration"
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The '''Transportation Security Administration''', or TSA, is a part of the the [[Department of Homeland Security]]. | The '''Transportation Security Administration''', or TSA, is a part of the the [[Department of Homeland Security]]. | ||
| − | The following is the channel plan from the radios and the descriptions from list on the front of the radios. As you can see some of the channels have the same frequencies (i.e. 1 thru 4) | + | The following is the channel plan from the radios and the descriptions from list on the front of the radios. As you can see some of the channels have the same frequencies (i.e. 1 thru 4). These channels use digital "Network Access Codes" (or NAC's) which are similar in funciton to PL or DPL tones. They allow the channels to function independently from each other while still using the same frequency; the exception to this is Channel 10 which can be heard on Channel 7. |
| − | + | National Radio Channel Plan | |
| − | + | Ch 1 172.1500 NAC 001 S1 Simplex 1 | |
| − | + | Ch 2 172.1500 NAC 002 S1 Simplex 2 | |
| − | + | Ch 3 172.1500 NAC 003 S1 Simplex 3 | |
| − | + | Ch 4 172.1500 NAC 004 S1 Simplex 4 | |
| − | + | Ch 5 172.9000 NAC 002 S2 Simplex 2 | |
| − | + | Ch 6 169.3000 NAC 009 S3 Simplex | |
| − | + | Ch 7 172.9000 NAC 001 R1 Repeater 1 | |
| − | + | Ch 8 172.9000 NAC 002 R1 Repeater 2 | |
| − | + | Ch 9 172.9000 NAC 003 R1 Repeater 3 | |
| − | + | Ch 10 172.9000 NAC 001 S2 Simplex 1 | |
| − | + | Ch 11 172.9000 NAC 003 S2 Simplex 3 | |
| − | + | Ch 12 166.4625 PL 103.5 F1 Simplex 1 (Analog, DHS Common) | |
| − | + | Ch 13 166.4625 NAC 001 F1 Simplex 2 (Digital, DHS Common) | |
| − | + | *Note: Channel 6 (169.300) is used as the input to the R1 (172.900) repeaters | |
| − | + | in channels 7, 8, and 9. The use of different NAC's allows traffic on | |
| − | + | Channel 6 to remain seperate and function as a simplex channel without | |
| − | + | activating the repeater. | |
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| + | Other Frequencies | ||
| + | 169.1625 NAC 128 Dallas/Fort Worth Int'l | ||
| + | 169.1875 Unk Dallas/Fort Worth Int'l | ||
| + | 172.9000 NAC 128 Dallas Love Field (Ch 5) | ||
| + | 169.1625 Unk Chicago O'Hare | ||
| + | 469.5000 DPL 023 San Fransisco Int'l (TSA Contractors) | ||
[[Category:US Federal Government]] | [[Category:US Federal Government]] | ||
Revision as of 18:45, 30 April 2009
The Transportation Security Administration, or TSA, is a part of the the Department of Homeland Security.
The following is the channel plan from the radios and the descriptions from list on the front of the radios. As you can see some of the channels have the same frequencies (i.e. 1 thru 4). These channels use digital "Network Access Codes" (or NAC's) which are similar in funciton to PL or DPL tones. They allow the channels to function independently from each other while still using the same frequency; the exception to this is Channel 10 which can be heard on Channel 7.
National Radio Channel Plan Ch 1 172.1500 NAC 001 S1 Simplex 1 Ch 2 172.1500 NAC 002 S1 Simplex 2 Ch 3 172.1500 NAC 003 S1 Simplex 3 Ch 4 172.1500 NAC 004 S1 Simplex 4 Ch 5 172.9000 NAC 002 S2 Simplex 2 Ch 6 169.3000 NAC 009 S3 Simplex Ch 7 172.9000 NAC 001 R1 Repeater 1 Ch 8 172.9000 NAC 002 R1 Repeater 2 Ch 9 172.9000 NAC 003 R1 Repeater 3 Ch 10 172.9000 NAC 001 S2 Simplex 1 Ch 11 172.9000 NAC 003 S2 Simplex 3 Ch 12 166.4625 PL 103.5 F1 Simplex 1 (Analog, DHS Common) Ch 13 166.4625 NAC 001 F1 Simplex 2 (Digital, DHS Common) *Note: Channel 6 (169.300) is used as the input to the R1 (172.900) repeaters in channels 7, 8, and 9. The use of different NAC's allows traffic on Channel 6 to remain seperate and function as a simplex channel without activating the repeater.
Other Frequencies 169.1625 NAC 128 Dallas/Fort Worth Int'l 169.1875 Unk Dallas/Fort Worth Int'l 172.9000 NAC 128 Dallas Love Field (Ch 5) 169.1625 Unk Chicago O'Hare 469.5000 DPL 023 San Fransisco Int'l (TSA Contractors)