More information: https://en.wikipedia.org/wiki/Automatic_Packet_Reporting_System
http://aprs.org/ http://www.arrl.org/aprs-mode
https://aprs.fi/#!lat=33.5&lng=-86.5 https://www.aprsdirect.com/center/33.50000,-86.80000/zoom/8/time/60
APRS Packet Nodes and Locations
| Frequency | Location | Callsign | Type |
|---|---|---|---|
| 144.39 | Birmingham | K4TQR-1 | DIGI |
| 144.39 | Cheaha | WB4GNA-7 | DIGI |
| 144.39 | Moody | KD4EXS | IGATE |
| 144.39 | Pinson | KM4NDI-10 | IGATE |
| 144.39 | Warrior | N4XWC | IGATE |
| 144.39 | Bear Creek | KG4PID-14 | IGATE |
| 144.39 | Tuscumbia | W4ZZK-11 | IGATE |
| 144.39 | Corner | KD4CIF | DIGI |
| 144.39 | Vincent | KU4BL-3 | IGATE |
| 144.39 | Tuscaloosa | K4CR-2 | DIGI |