While out and about beware of your DC-AC inverter if you have one. If
hear whistles and hum, it might come from your own DC-AC inverter.
All my AC stuff (PC, cell chargers) is strictly inside the car, so
not much noise escapes and even longwave is clear and quiet (I am in
Europe). If you have that problem, move antenna and other electric
stuff away from each other.

The AOR7030 has a high impedance wire antenna input. If you're
really fireside, not easy to beat a random wire, and not even a
terribly long one. I wouldn't bother with more than 30-50'.

Just don't trip in the power cord under the moonlight. That radio
needs external power, 12Vdc from a vehicle is fine.

You'll have great fun, I envy you a bit.