Keysight's FieldFox portable analyzers are equipped to handle your toughest working environments during routine maintenance, in-depth troubleshooting, and anything in between. Choose the Keysight FieldFox configuration that best meets your needs. 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. Measure all four S-parameters simultaneously. Make accurate spectrum analyzer measurements (± 0.5 dB) without warm-up. Calibrate easily with QuickCal. Use the industry's lightest all-in-one analyzer at only 3.0 kg (6.6 lb).