[tjohns]

It would be under the FCC regs, not the FAA regs.

Whatever transmitter you're using would not be type-accepted for operation on the 1080 MHz or 978 MHz band. (47 USC § 301)

Additionally, RF operation with the intent of willful interference is inherently illegal. (47 USC § 333)

[fc417fc802]

What if you removed a genuine ADS-B unit from a plane and installed it in your vehicle?

Also does impersonation necessarily qualify as interference? Naively, I'd expect interference to refer to jamming.

[jjwiseman]

A transponder in a car is not an "aircraft station" (§ 87.5), therefore it is not covered by aircraft "license-by-rule" (§ 87.18(b)), so transmitting would be operating without a valid authorization (§ 1.903(a)). https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D...

[TimorousBestie]

Excellent, thanks.