UHF Receptacle, 300 MHz Ceiling — Panel-Mount with Solder Cups
The 83-1R-RFX: The non-constant impedance means this is a general-purpose UHF interface, not a controlled-impedance 50 Ohm line — it is the standard connector for two-way radio, base station, and low-frequency RF equipment where the 500 V rating and 500 mating cycles provide reliable service life.
The 300 MHz maximum frequency is the practical upper limit for the UHF interface design; beyond that, the non-constant impedance causes standing-wave losses that degrade signal integrity.
Silver-Plated Brass Center Contact, Solder Cup Termination
The center contact is brass with silver plating — a standard combination for UHF connectors that balances conductivity with cost. Silver plating provides lower contact resistance than tin but tarnishes over time; the 500 mating cycle rating assumes the silver surface is wiped clean on each mate. The solder cup termination accepts tinned stranded wire directly — no crimp tool needed, but the joint must be inspected for cold solder.