RF Plug-ins for the Agilent 8350B Sweep Ocillator 50 GHz coaxial coverage The 83599A and 83598A plug-ins incorporate 2.4 mm connectors which make high performance broadband coaxial measurements possible. The superiority of 2.4 mm connectors lies in their ruggedness, repeatable performance, and excellent match over the entire frequency range. 2.4 mm connectors are also incorpoated into other Agilent instrumentation and devices so that a complete 10 MHz to 50 GHz coaxial system can be configured.