What is it HB4FL ?

 

HB4 "is a prefix assigned to military stations. ​ Training For transmission services of the army, young people not yet compelled Swiss military service, military service, or incorporated into the reserve.

 

The Meeting outside the military service of members belonging to the troops and military communication services and defense agencies as well as Swiss citizens devoting an interest in telematics military and civilian power in order to promote telecommunications in the army and government as well as to cultivate friendship.