What is the better IFR navigator to interface with Dynon HDX?

moetzmoet

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May 31, 2022
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What is the better IFR navigator to interface with Dynon HDX? What are the pro’s and con’s Now and outlook going forward?
 

airguy

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Garmin is shuttering their 430/530 line. I replaced my 430W with Avidyne IFD440 a few years ago and absolutely love it - the user interface with Avidyne is so much better than Garmin.

Any of them will interface with the ARINC-429 device to feed nav data to the Dynon - but you really want to choose/use the navigator that you are most comfortable with, from a user interface perspective. That's going to be the main experience driver for you in the air.
 

jakej

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.... and you can monitor the Standby freq plus have FTLA + IFD100 (App) control & display on an iPad etc, etc - just google the IFD to GTN comparisons & see what's different.
 

djones

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Also, you can send frequencies from HDX to the IFD via a serial port connection. Not so on Garmin stuff.
 

CanardMulti

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Both the Garmin 650/750 or the Avidyne 440/540 (or 550 which adds an AHRS board if you want an SAI built in) will do the job nicely. As stated above, preference very well may be a function of your previous experience. The Garmin interface is largely touch screen only based and more often than not needs to be backed out of one menu to enter another. They are also prettier.

The Avidynes differ in that they are both button and touch capable such that there are multiple ways to achieve input for perhaps 95% of the functions. They used to advertise that usually 2 button pushes, and almost never more than 3, will get you to the page you want. That variability can make your previous experience more applicable. If you have ever used a high level FMC professionally, their input flow simply feels more pilot friendly. If you have ever had to enter a long full reroute clearance in turbulence, you will appreciate having buttons.

One looking forward aspect you might have not considered: Avidyne goes to great lengths to make their equipment fully interoperable with a wide range of other manufacturers' avionics. Garmin equipment, while somewhat adaptable for use with other mfg. avionics, seems to often reserve complete functionality for only other Garmin products. Translation: Which will be easier to sell years from now should something new and shiny catch your eye?

Last, a BIG consideration: Check out Avidyne's FREE IFD 100 app for your iPad. Garmin has nothing like it.

Ken
 

362PC

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Aug 1, 2023
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Also, you can send frequencies from HDX to the IFD via a serial port connection. Not so on Garmin stuff.
Can you elaborate a bit more on this, and a way to test? I have an IFD540 and would like to know more about sending frequencies to it. Nav/Comm? I have the radio panel and send frequencies to that but have not ever seen an option to program the IFD radios from the HDX.
 

djones

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This requires a pair of RS232 from the screen be connected to the Avidyne.
The connection and setup is discussed in the Third Party install manual.
 

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custom555

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Feb 9, 2024
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Does that RS232 connection allow the Avidyne IFD to control the transponder connected to the Dynon screen. Any thoughts on that control "flowing through" if the Dynon HDX screen failed/lost power...allowing the IFD to control the transponder.
 
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