Q1: How do I enable ADS-B?
A1: Connecting ADS-B is quite easy. You only have to provide GPS data (NMEA) to your Mode S transponder. This is possible by making a simple connection between the transponder and, for example a flight computer or a separate GPS receiver.
How the connection to the Mode-S transponder exactly works, depends on the brand and type of the transponder. If you want to learn more, have a look at the explanation on this website.

Q2: Am I allowed to apply a cable between my transponder and GPS source in my glider?
A2: No. Only a glider technician C (ZVT-C) is allowed to execute this. (according to Dutch regulation)

Q3: Do I need an EASA Minor Change application to my glider to equip ADS-B? 

A3: No. If it’s documented in the manual of the transponder, how to connect GPS signal to the transponder, an EASA Minor Change is not necessary and this falls under standard part 1.

Q4: Does the GPS source has to be certified?
A4: No, in Europe the GPS source doesn’t need to be certified for a class II Mode-S transponder. The used GPS source may be a standard GPS receiver, which is not ETSO-certified. This is currently only permitted in areas where ADS-B out is not mandatory.

It should also be kept in mind that the “System Integrity Level” of the transponder is set to the lowest level. With a number of transponder types (Garrecht), this is already fixed at the lowest (the right) level.

Q5: Does this system also works abroad? (outside the Netherlands)
A5: Currently in the Netherlands, the use of Mode-S transponders in gliders in mandatory. In most other countries there is no Mode-S transponder requirement for gliders, and the national regulations varies regarding the use of the Mode-S transponder.

Q6: Can I use GliderTracking for tactical purposes during competitions? 

A6: For live glider tracking during competitions, the competition director may set a delay, as described in the rules of the FAI (ref. Annex A, 4.1.2 b.)

Q7: Will ADS-B be mandatory during gliding competitions?
A7: No, the GliderTracking application is meant as extra support, specially for spectators on the ground to show where the pilots are. Our intention is to follow as many participants as possible, with ADS-B technology. Therefore it is important that the coverage of ADS-B is as large as possible.