Attach the high-gain blade antenna to the UHF/UHF-N port.
: Supports legacy encryption, Type 3 AES keys, and an embedded SAASM GPS receiver for secure position reporting. an prc158 manual
Because the full operator's manual is typically ITAR-controlled, these sources provide the most detailed public information: Product Datasheet: The official L3Harris AN/PRC-158 Datasheet Attach the high-gain blade antenna to the UHF/UHF-N port