¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Re: Something learned about ADS-B


 

Alex,

I've never experienced the UAT ADS-B disconnect problem you describe with my iPad Mini and as I keep my iPad connected to aircraft DC power in flight, I've never used Airplane Mode while flying.? My impression is that when either Bluetooth or WiFi is turned off on my iPad or iPhone, both transmission and reception are not available, but I may be wrong.? It's happened before.??

By the way, I occasionally listen to music from my iPhone through my Bluetooth-enabled headphones.? In mute-mode, my Bose A20 headset will mute Bluetooth audio if it detects audio through the headphone/microphone jacks.

Brian

On Wed, Feb 5, 2020 at 1:21 PM Alex Nelon <Alex.nelon@...> wrote:
Yesterday was a great day to fly to Pickens for gas .. Darwin and Steve were there in the RV-10 and we met up for lunch at Ingles when we returned home.?

On the way back, I lost my ADS-B display on my iPad, just when crossing the rim of the mountains...of course, Steve and Darwin were inbound at the same time from the east after looking at Steve¡¯s engine instruments one last time and I couldn¡¯t see them. Back to default mode: we talked to one another on the radio as I joined the I-26 arrival for a downwind to 15 at 0A7 and Steve spaced behind me. The message displayed on my iPad was ¡°ADS-B Disconnected¡±. Hmmm

Apparently the WiFi link from my UAT to the iPad was all that was affected at that point. The ADS-B was still putting out good information. uAvionix suggested placing the iPad in ¡°airplane¡± mode .. apparently, there is an issue with the iPad operating system that causes the WiFi disconnect when the iPad is not in airplane mode. The news to me was the way airplane mode works: it¡¯s meant to turn off broadcast signals from the iPad (or iPhone) but it does not mean you are blocked from receiving data. When I selected airplane mode I had to then manually select WiFi and Bluetooth to override the system and enable reception. New to me.?

uAvionix was great with their support and was back in touch with me only a few minutes after I wrote to them.?

Still a little paranoid about my ADS-B, I requested a performance report from FAA (my third such since I got the first good one) and had a ¡°baro alt¡± failure for a few seconds. It was enough to trigger a dreaded red data block. uAvionix requested a detailed report from FAA and sent the attached picture. Looks like I¡¯m still good to go and now I learned a little more about how my installation works.?


Join [email protected] to automatically receive all group messages.