My father regailed tales of his college years where it was a game to have a HAM radio operator start broadcasting and to have teams try to find where they were hiding, first.
More challenging? Not really. It does require multiple boots on the ground to do it.
Presumably doing it locally within a known few mile radius is different from nation-scale broadcast areas bounced from god-knows-where?
This seems to be a common treasure hunt game conducted by HAM clubs.
Multiple boots on Iranian ground is tricky for Americans right now.
Yes, more challenging. Ham radio fox hunting is usually VHF/UHF. Waaay easier to direction-find, since the signal isn't bouncing off the ionosphere, and also the much shorter wavelength means that you can get highly directional antennas that are small enough to be held, and don't need to be 50 feet in the air to work well.