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HXr with Garmin 480 (cnx80) obs

Postby Norcalrv7 » Mon Sep 19, 2016 10:48 pm

Having a bit of trouble getting my hxr to send obs selection back to my Garmin 480 gps. I have both serial to and from the garmin, as well as arinc429 to and from. Can't seem to make it work at all. Anybody done this successfully?

Caleb
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Re: HXr with Garmin 480 (cnx80) obs

Postby Bobturner » Tue Sep 20, 2016 6:00 am

It works for my HX/Garmin 420W. The data uses the HX ARINC out to 420W GPS ARINC-in link.
Of course the Garmin has to be in OBS mode for this to work.
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Re: HXr with Garmin 480 (cnx80) obs

Postby Bobturner » Tue Sep 20, 2016 8:26 pm

My above post was for sending OBS data to the GPS (my 420W doesn't have a VOR) for when the gps is in the OBS mode.
Or were you asking about VOR OBS data?
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Re: HXr with Garmin 480 (cnx80) obs

Postby GRT_Jeff » Wed Sep 21, 2016 2:47 am

Make sure the 480's ARINC input is set to "EFIS". EFIS is the only mode that is listed as accepting the "Selected Course" label. The speed also needs to match the HXr's transmit rate, usually Low.
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Re: HXr with Garmin 480 (cnx80) obs

Postby 330drvr » Wed Sep 21, 2016 5:55 pm

As an additional note, on the 480 you must use ARINC #2 IN only. I should also point out that I got it to work for awhile, but it no longer does. Not sure what changed. If anyone figures it out, let me know!
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