Garmin 796 Xm signal lost

[celstar]

I having a issue with signal lose on my Garmin 796. It seem like at around 5 to 10 minutes into a flight I will lose signal on my 796 and will not come back until the next flight. Any one also have this or had this problem?

[newamiga]

Are you using the Air Gizmos dock or do you have it mounted some other way? I ask because right after I had mine installed with the AG dock it wasn't seated quite right into the dock and had an intermittent connection. In the end there was a small bit of metal blocking the seating of the GPS properly.

[celstar]

This is the XM Antenna that may be the problem but not using the gizmo dock, just mounted on top of a custom made roll bar on my rv3 .

[N427EF]

I have the exact same problem with my 696.

http://www.vansairforce.com/communit...ad.php?t=87573

I have not been able to even pinpoint the source of the problem much less find
a pattern in behavior when it comes to loosing the signal.
It happens in mid flight usually about 5 to 10 minutes out, sometimes in climb and sometimes in a steady cruise and sometimes it stays on.
I am not usually the guy who gives up on anything but I am about ready to pull the plug on my subscription (music only).
With ADS-B weather availability, XM is becoming obsolete, too bad.

[celstar]

Originally Posted by N427EF

I have the exact same problem with my 696.

http://www.vansairforce.com/communit...ad.php?t=87573

I have not been able to even pinpoint the source of the problem much less find
a pattern in behavior when it comes to loosing the signal.
It happens in mid flight usually about 5 to 10 minutes out, sometimes in climb and sometimes in a steady cruise and sometimes it stays on.
I am not usually the guy who gives up on anything but I am about ready to pull the plug on my subscription (music only).
With ADS-B weather availability, XM is becoming obsolete, too bad.

Do you have electronic ignition ? or do you notice are your strobes on when it happens? just trying to figure out what could be causing our same problem .

[N427EF]

Light Speed ignition on top and Magneto on the bottom.
Wheelen strobes turned on at start up.
Just be be clear, I have never lost the GPS signal just the XM reception and by that I mean, no service indicated on the XM page.
About 40 hours into service I relocated the XM antena from under the cowl,
where it was next to the GPS antena, to the top of the glare shield. This made absolutely no difference.
I have tried to narrow it down to where I make some sort of adjustment or switching something on or off. No luck so far and as I pointed out in the link to the other post, sometimes it stays on, even 2 flights in a row.
I am glad it's not essential for safe flight but frustrating nevertheless.

[L.Adamson]

Originally Posted by N427EF

I have the exact same problem with my 696.

http://www.vansairforce.com/communit...ad.php?t=87573

I have not been able to even pinpoint the source of the problem much less find
a pattern in behavior when it comes to loosing the signal.
It happens in mid flight usually about 5 to 10 minutes out, sometimes in climb and sometimes in a steady cruise and sometimes it stays on.
I am not usually the guy who gives up on anything but I am about ready to pull the plug on my subscription (music only).
With ADS-B weather availability, XM is becoming obsolete, too bad.

Never lost the XM signal on my 696 (or 496), and ADS-B just isn't much available, yet, in the mountain west. BTW-- have had XM in my vehicles for many years. Realiable there, too!

[celstar]

Originally Posted by N427EF

Light Speed ignition on top and Magneto on the bottom.
Wheelen strobes turned on at start up.
Just be be clear, I have never lost the GPS signal just the XM reception and by that I mean, no service indicated on the XM page.
About 40 hours into service I relocated the XM antena from under the cowl,
where it was next to the GPS antena, to the top of the glare shield. This made absolutely no difference.
I have tried to narrow it down to where I make some sort of adjustment or switching something on or off. No luck so far and as I pointed out in the link to the other post, sometimes it stays on, even 2 flights in a row.
I am glad it's not essential for safe flight but frustrating nevertheless.

I think we need to check if the strobes are causing this or I know on another thread Paul Dye said that he had the same type of problem and that it may have been loose spark plug ends?

[N427EF]

Paul reported low signal strength and unreadable audio when describing his XM problem.
It's worth taking a look, heck I'll check anything.

I have XM service in my business and never lost a signal or service.
I am not blaming XM, I am just down to wishful thinking and hoping someone
might have a solution.

[petehowell]

See if you can borrow a buddy's antenna - I chased bad XM for months and finally figured out he antenna had gone bad. New antenna fixed all issues.