[V99]

You are NOT at all (legally) free to arbitrarily turn off your ADSB on an aircraft equipped with it. 91.225(f) [1].

> Except as prohibited in [unmanned aircraft section], each person operating an aircraft equipped with ADS-B Out must operate this equipment in the transmit mode at all times unless [authorized by FAA or ATC].

A common way to add ADSB to an aircraft not originally equipped is replacing one of the lights with a uAvionics skyBeacon[2], which has a LED light + ADSB-out transmitter. So the nav light switch would control it, but you'd also now be required to have them on at all times.

[1]: https://www.ecfr.gov/current/title-14/part-91/section-91.225...

[2]: https://uavionix.com/products/skybeacon/

[plantain]

There's a whole world outside the USA which does not follow FAA regulations. I, flying an unpowered glider, turn mine on only when I need a clearance.

[V99]

That's nice, but the parent explicitly cited part of US regulations where it's required, while ignoring that it's always required if equipped.

[nixass]

> There's a whole world outside the USA

What do you mean?

[rad_gruchalski]

Can’t see past the wall?