MIDISCO introduces a phase adjustable in-line adapter which offers precise, yet simple, means of phase adjustment over the frequency range DC - 4 GHz. Model MDC1089A incorporates a threaded interconnection of variable length. By tuning a phase adjustment nut, the user creates a small increment change in cable length and hence, phase, up to a maximum of 40° at 4 GHz. Model MDC1089-1 is also available and provides a phase adjustment of up to 180° at 18 GHz. Models are also available for DC - 8 and DC - 12 GHz.