Jonathan,
You are correct that you can use F11 to flip back and forth between the two horns -- and -- correct that when powering down and then back up it reverts to the primary horn. All my QSI decoders do this.
I've changed primary and secondary whistles and horns on other QSI equipped engines. And fiddled for fun with changing to all kinds of whistles on my Q2 firmware equipped QSI Titan. But, that Aftermarket decoder came loaded with a huge selection of chuff, whistle and bell, etc, sound files.
Not sure what sound files are in the FT OEM QSI decoder and so will need to actually verify this on the FT's before saying any more. Am busy now but will try it and post results NLT tomorrow AM.
Jonathan or anyone else, I think the secondary horn is really the more correct one? Agree?
