Flarmnet data format - Akaflieg-Freiburg/enrouteServer GitHub Wiki

Enroute Flight Navigation uses Flarmnet data only to find the official registration number ("D-KLJC") from the device ID ("DDDCDD"). To this end, a Latin-1 encoded text file of the following form is used:

Flarmnet Data version 009596
000000,D-2188          
00001F,D-KHGA          
0000B1,D-9431          
000256,D-KGOR          
000333,TF-TUG          
000457,OK-3210         
000582,D-KFCT          
000634,D-KLML          
000824,N6044           
000831,N16MA           
000841,N68GH           
000843,N135GS          

Thie first line is a free-text comment of arbitrary length. All the following are exactly 24 bytes long. The first six bytes are the device IDs, sorted alphabetically. Starting from byte 7 comes the registration code (16 bytes, filled with blank). The line is ended with a "\n" character.