ADSB Anonymous Mode

JC150

Pre-takeoff checklist
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Apr 22, 2013
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JC150
I have a GDL88 which is 978 UAT. I noticed theres an anonymous mode but when I press it, it wont stay on anonymous mode while squawking 1200. Can anyone offer any information as to why?
 
Id trust that like Google incognito mode lol
 
I thought you needed a jumper for always anonymous or a toggle switch run for selectable. This is from no actual expertise, only what I heard from a salesman some time in the past.
 
Pin 5 needs to be grounded or put to a on/off switch to ground (per the install manual). If it doesn't work you may need to have your transponder checked.
 
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