Airborne Signals Technology ID
The research ID for Airborne Signals in Hearts of Iron IV is paras_combat_1.
Airborne Signals
Special Forces Doctrine
Unlock this technology with the research command and the tech ID paras_combat_1.
About this technology
Nothing can compare to a perfect line of communication with our troops behind the lines. Training signal companies for airborne insertion will keep these critical communications going, even in the worst conditions.