Transponder state on load
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I noticed that the value of (A:TRANSPONDER STATE:1,Enum) is set to 2 on load. Since the unit in the aircraft doesn't have a TEST mode, the display shows as being in ALT mode. I was expecting the transponder to load up in STBY mode and then we'd switch to ALT mode before takeoff.
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I just checked the SDK, and it appears that state 2 is "on". The configuration files call for state 3 on loading, which is altitude reporting mode. You can read about some of the previous requests I have received regarding this (there are four states, and it appears that everyone wants something different), and how to change the default to your own liking here, if you so choose. Let me know if you have any more questions!
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Interesting. I was referring to https://docs.flightsimulator.com/msfs2024/html/6_Programming_APIs/SimVars/Aircraft_SimVars/#misc_ for the simvar values. Is there a different SDK document I should be referencing?
A quick check of the internets and yeah... Mode C on startup is normal so hey... TIL. It's one less thing to forget when taking off, I suppose.
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Well, it's really up to the aircraft owner how they have their digital transponder configured, so you can set it however you like
I'm just speaking from my own real world experience.I can't get your link to load for whatever reason, but here is the line specifically for the configuration files. My eyes might have also missed something while trying to answer your question quickly.
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my link doesn't load for me, either. this one works...
https://docs.flightsimulator.com/msfs2024/html/6_Programming_APIs/SimVars/Aircraft_SimVars/Aircraft_RadioNavigation_Variables.htm?rhpgno=3#TRANSPONDER_STATE
Looks like MS just has transponder state defined twice, once as a simvar in general and again for its use in a flight definitions file. They both say the same thing. I set all of mine to 4 in the .FLT files so that my external hardware agrees with what's in the sim.
