While wprking with Special Projects in SOG in 1968 we carried an AN/GRC-106. It was originally made for the SAS. It had CW and voice HF capabilities. The power and range were similar to the GRC-109.
I used to day dream about the kinds of equipment you men use today. I'm not one to hang onto the past. I wish we had your capabilities
An interesting device we had was a transmitter with coded buttons on it. We would give it to Bru trail watchers and everytime they saw a truck, tank, troops, etc. they would push the button. The message was recorded and stored and at night acft would fly over and activate the xmtr and record the intel. This was part of the project I worked with. By using these devices we didn't have to commit our teams to the AO.
There are lots of things which won't make books like "Secret Commandos" because of the lack of sensationalism. A lot went on that may be found in serious AARs bit not best sellers.