A great resource for the observer of Foreign Armies
From bare bones basic but effective LRP:

To the Warfighter seen here:
Working a digital mode from a sort-of Toughbook and HF in a hasty OP:
This is important for a couple of reasons. It gives us something to listen for, recognizing the new modes and how they sound over the air(and how the waterfall looks on a display), and it gives us a direction in our SIGINT capabilities. Recognizing technology on the battlefield, both seen and heard, is a critical part of a Scout team’s skill set.
“The upgraded system will be based on the modernized “Morse” code sensor, modern digital technologies will for the first time be used in the work of telegraphists. The new wireless operator workstation, designed for the audio telegraphic exchange of information in a shortwave range, will surpass the existing domestic counterparts in terms of its features and technical characteristics.
Whenever you see “shortwave” range, this means HF.
Another great resource for the Listening Crew to get pointed in the right direction:
Write it down in your Data Book and get to work. Roger, Out.