Avidyne Homepage
Forum Home Forum Home > Avidyne General > IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
  New Posts New Posts RSS Feed - Planning HDX1100's and Avidyne GPS/NAV/COM - how m
  FAQ FAQ  Forum Search   Register Register  Login Login

Planning HDX1100's and Avidyne GPS/NAV/COM - how m

 Post Reply Post Reply
Author
Message
Wsimpso1 View Drop Down
Newbie
Newbie


Joined: 18 Aug 2023
Location: Saline
Status: Offline
Points: 4
Post Options Post Options   Thanks (0) Thanks(0)   Quote Wsimpso1 Quote  Post ReplyReply Direct Link To This Post Topic: Planning HDX1100's and Avidyne GPS/NAV/COM - how m
    Posted: 22 May 2024 at 10:34am
The title pretty well sums it up. Building a fiberglass airplane, lots of buried and/or internal antenna. 


I know I need a GPS 2020 antenna/receiver to provide GPS signal to my Dynon array, and plan to put it under the turtledeck near the front edge, which is high and a long ways from other metal items. I like that spot. But with the bird being IFR and having an Avidyne IFD440 in the panel, it too needs a GPS position source. 


Does it work OK  to port GPS position data from Dynon to Avidyne? 


Is it smart to run only one GPS position source given the IFR mission? Does anyone else run a second antenna for the Avidyne? Should I put it further aft of the Dynon or on the glare shield or under the cowling like the Van's guys favor?


Last, can we connect the GPS position data between the Dynon and Avidyne even when they both have their own antenna?


Thanks,


Billski 

Back to Top
paulr View Drop Down
Senior Member
Senior Member


Joined: 24 Jan 2014
Status: Offline
Points: 558
Post Options Post Options   Thanks (0) Thanks(0)   Quote paulr Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2024 at 2:28pm
I don't think the IFD440 will accept GPS position data from an outside device; you'll need to connect an antenna to it.
Back to Top
AndyMeyer View Drop Down
Newbie
Newbie


Joined: 05 Oct 2019
Location: SE PA
Status: Offline
Points: 29
Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyMeyer Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2024 at 10:13pm
I've got a glass bird as well (Long EZ) with a G3X, AV30E and the IFD540 / AXP322.
3 GPS antennas. Put 'em where you can. It also gives you some semblance of redundancy if one unit goes TU, you've still got GPS. I've got 2 under the instrument panel and the IFD antenna under the turtledeck behind to co-pilot.
Back to Top
JohnAJohnson View Drop Down
Groupie
Groupie


Joined: 15 Aug 2018
Location: KJKA
Status: Offline
Points: 45
Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnAJohnson Quote  Post ReplyReply Direct Link To This Post Posted: 28 May 2024 at 10:53am
Billski, the Dynon antenna doesn't have a standard coax output.  It converts the received GPS data stream into a serial stream and sends it to the Dynon HDX using (I think) an RS232 protocol with a proprietary sentence.  The antenna also gets power from the HDX.

So the Dynon GPS antenna can only be used by the HDX.

GPS antennas are receive only, so theoretically you could put a GPS antenna farm all in one location, touching each other even.  But some certificated installation manuals recommend staggering GPS antennas (not in line fore to aft, but one on the left and another on the right, for instance) and keeping them distanced from each other, all in an effort to keep a lightning strike from taking out more than one antenna.

Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.119 seconds.