Generally, the biggest problem a new ham radio operator will come across when starting out on the high frequency (HF) bands is finding physical space for the antennas. For a quick example ...

Ham radio covers a lot of ground, but “traditional” ham radio is operating a station on the HF bands — 3.5 MHz to 30 MHz — and talking to people all over the world. That kind of ham radio ...

HF radio is often used for: Tactical military communication Aviation and maritime communication Emergency and disaster response Ham (amateur ... across all bands and waveforms, including tactical ...