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Hi did you have everything turned on when you did the update. If the autopilot was turned off when you did the update the latest version of the software would not be loaded into the servos and they will not be recognised by the new software version. I am not sure how you would go about...

To answer the second part of your question. I have tried out the VNAV descent this morning to confirm it works as I thought. If you are at say 2500ft and your airfield is at 20ft amsl. With the AP engaged in VNAV and NAV the aircraft will remain at 2500ft tracking to the airfield. I have set my...

Your assumptions are correct that is exactly how it works. QNH should be used and my understanding, however I am not 100% sure how it is used these days, is that QFE should only be used in or around the circuit. I am sure there is someone here on the forum from UK who can confirm this for you...

It is relative to whichever you have set. I understand it will just use what is displayed on the display. Remember the UK is pretty much the only country that I know of that uses QFE so system is probably not designed to differentiate between QFE and QNH. When you carry out a VNAV approach it...

Just been through the same process. The system does not know it has an autopilot until you calibrate the servos. All good after that.

Having the same issue here. It seems to be an issue that crops up from time to time but I have noticed that after the latest update it happens every second flight.

The latest version of the installation manual suggests that when you enter the calibration you get a screen that allows you to set up a number of flap settings. Revision AO page 5-20. If it does not come up Dynon may have an idea why.

Not sure where you are but your local hardware store would be a good place to look. I bought mine from Home Dep in the USA but they should not be hard to find. They are not structural so dont need to be sourced from aviation supply.

Hi Peter check out the installation manual on page 7-43 and 7-45 it describes what is acceptable for extending the EGT sand CHT wires.

I have to ask . Why if you are new to Dynon are you trying to decode the config files. If you work through the EMS setup menu you should be able to achieve everything you need to do setting up screen layout and widget parameters.

Looks like your GPS has failed. The GPS2020 will be connected to serial port number 5 probably so you could look at the port and see if data is travelling backwards and forwards. If not you will need to check the connection to see if anything is loose. If you are not familiar with how to check...

When updating a version 4 HDX system the update froze at the point shown in the picture. We had no choice but to power off after waiting 30mins for something to happen. Fortunately when we turned power back on it seemed to continue from where it stopped and the update completed normally. Phew😳...

To add to what Marc said the support you will get from Dynon in my experience is excellent. I have had a number of minor issues over the years with 6 installs I have been involved with and have received quick responses to all questions and all issues get resolved. I will say I have stuck to, by...

I chose to install two circuits with a CB on each. For normal operations turning the master switch on powers everything up but if I just want to put the flaps down I can pull The CBs and I don’t power the screens up unnecessarily.

All the setting that can be enabled are in the Audio setup menu. Check page 4.21 of the installation manual

Contact Dynon you will probably have to send it for repair.

You need to contact Dynon. We have just had to send two screens back for repair with exactly those symptom.

No

One thing that has struck me about the way the system works is that you want to record the data for the deepest stall. I recalibrated mine for a power off flap down stall but found that as soon as I started to slow down on base leg the AOA would start sounding and became distracting. I think...

You need to think of your setup as two completely different systems. First you have the AP servos that are controlled through the EFIS system and receive their control through the network hub, your second diagram. Next there is a trim system that uses external trim motors e.g. Ray Allen trim...