Modern warfare dictates that transmission security (TRANSEC) is as vital as the message itself. The PRC-6020 integrates sophisticated Electronic Counter-Countermeasure (ECCM) capabilities directly into the chassis.
The defining feature of the Hx series was its ECCM capability. In a jamming environment, the radio does not stay on one frequency. Instead, it "hops" through a pseudo-random sequence of frequencies at high speed. This makes the signal incredibly difficult for an enemy to lock onto or jam. Radio Set Hx Prc 6020 Technical Data
Despite being a military radio, the PRC-6020 must comply with certain basic safety standards for export and domestic use in non-combat scenarios. Radio Set Hx Prc 6020 Technical Data