The Tensolite Model 5998 coaxial phase shift adapter mates in-series with SMA Male and Female connectors, and allows resettable phase adjustments (up to 126 deg. @ 26 GHz) to alter the electrical distance between other components in cable/connector RF lines. Insertion loss is .05 x F (GHz), and 50 ohms impedance is maintained over the adjustment range. The 5998 incorporates a positive locking mechanism for calibration accuracy.