Heading lag

[bcollinsmn]

I'm having a devil of a time getting my Dynon D100 to work properly.

It's getting data by way of a Garmin 296 in an RV-7A. After turning, the heading indicating on the Dynon lags terribly, so does the HSI (which is again getting data from the Garmin).

Today, for example, I made a 90 degree turn and heading northwest and the dynon indicated I was heading 270. The Garmin was reporting, correctly, that I was heading 320.

Slowly -- possibly a minute -- the Dynon came around and indicated properly , but this is not a comfortable situation for me.

Doublecheck my work. I went to the NOAA site for Lakeville, MN, entered 55044 in the zip code and got an inclination of 71 degrees 33' and the total field of 55718.

I then went to the compass rose and calibrated. And, as I said, EVENTUALLY, both headings on the Garmin and the Dynon agree.

Any suggestions what I should try next.

 

[dynonsupport]

The heading doesn't come from the Garmin at all. Only your ground track does. In flight, if there is any wind, they will never match (except dead head or tail winds)

What kind of airplane is this, and where is your magenetometer located?

 

[bcollinsmn]

RV-7A. It's back in the fuselage, mounted on AL angle that spans from one longeron to the other.

 

[jakej]

Bob

Can you post a pic of the magnetometer mount ? Is it mounted perpendicular to the instrument panel?

Jake J

 

[bcollinsmn]

 

[dynonsupport]

Do attitude and turn rate seem to work normally? In any case, you should get in touch with our tech support staff directly. There might be something up with the sensors in either the D100 or the EDC.