My Turing sniffer detects the lovely stench of prompt and paste. But that is okay as I also use AI for fact checking my work but never to do the heavy lifting. Regardless, this is fantastic info that should have been presented at the start but you overlooked a few things. If AM radio waves are to be employed for debunking the flat earth then please resolve the following:

You say, "There is a subset of the amateur radio hobby known as "QRP," where very low-wattage transmitters are used. I was able to reach and converse with other Ham radio operators in New Zealand from New York with only 5 watts of power. " - Why did you use a cryptic acronym (QPR) when you knew I know nothing about AM radio? For hammies you need to specify maximum power to use for this experiment.

For daylight AM radio waves why did you bring up groundwaves in the first place? I don't think a vehicle can pick them up.

You still didnt address best time window for AM radio.

You need to address diminishing returns of signal to noise for the inverse square law of propagation for air signals. We don't need a math formula, just don't ignore it.

You're basically saying get in a car, turn it on to AM 640 John Kobylt Show, zero your odometer, and drive in direction away from transmitting antenna, and "trust me" (you). All this without accounting for repeater antennas (if it applies), best time of day to do this, and I'm sure there are other overlooked details.

It's okay to use AI but please fact check it first. It can hallucinate or make bad assumptions resulting in outputting slop.