FieldFox Handheld Cable and Antenna Analyzer and Vector Network Analyzer 4GHz Basic unit. No options on this unit. 4 GHz max frequency Handheld RF analyzer: standard model includes cable and antenna analyzer Expand capabilities with optional VNA, spectrum analyzer, built-in power meter, vector voltmeter, and more Save time by measuring DTF and TDR in the same sweep Simultaneously measure all four S-Parameters Accurate spectrum analyzer measurements (± 0.5 dB) without warm-up Calibrate simply with QuickCal Lightest all-in-one analyzer at only 6.6 lb. (3.0 kg)