In Vietnam communication wasn't the support. It was the system. If the signal held, units stayed alive. If it didn't, everything broke. But to make the signal work, it had to be exposed. Above the tree line. Generators that could be heard for thousands of meters. Fixed in place. Easy to find.
"One of the most original Vietnam War stories I've read - told from the perspective of a radioman. A view rarely seen, and done right." - Colonel Robert A. Black, Silver Star