Transponder/ADS-B tail number mismatch

[BOORSMA]

I just got a call and follow up e-mail from the FAA saying that my ADS-B output tail number did not match my Transponder tail number. The transponder output is correct but the last two digits on the ADS-B tail number were incorrect. I have no idea what could cause this since I only know of entering the tail number in the Dynon system one time during set-up.

Has this ever happened to anyone else?

[Radomir]

This is fairly typical as quite a few planes are flying around with misconfigured equipment (of all makes).. You can take a pic of Dynon config and post it here..

Did they tell you what values you were sending out or just "it's off..."

PS. what's your tail number?

[n74846]

I found a very useful site to convert your N number into IACO format. I used that input to change it in the Skyview, then flew an confirmed with ARTCC while in the air. The site is: avionictools.com.

[az_gila]

Originally Posted by n74846

I found a very useful site to convert your N number into IACO format. I used that input to change it in the Skyview, then flew an confirmed with ARTCC while in the air. The site is: avionictools.com.

Do you need that conversion any more?

The FAA registration online data base now gives the Mode S code in both octal and hexadecimal formats.

The IACO standard is the base 16 hex code, and that is what Skyview requires.

[n74846]

Don't know that answer, but the site yields hex, octal, and binary codes for the N number.

[BOORSMA]

I went into the set-up menu and the tail number and hex code are correct. I got an e-mail from Dynon that said I may have to wait when I turn on the master switch until the system is completely up and running before I turn on the avionics rocker switch. That will give the unit time to load properly and send the correct signal to the transponder/ADS-B.

I will give that a try and let everyone know how that works out.