Antenna Connector - Pacific Crest PDLGFU15 Guia Del Usuario

Pacific Crest - PDLGFU15 User's Guide 11

Antenna Connector

The PDLGFU15 requires a TNC antenna or feed cable system that is
impedance matched to 50Ω. We recommend the selection of an
antenna that has a low VSWR (less than 1.5:1) and that has been
tuned for operation in the band of the PDLGFU15.