Bypass Adjustment

This adjustment applies to the following models:

M9381A

This adjustment procedure estimates the absolute gain in the RF path from the LO Input to the RF Output when modulation is off and the IQ modulator bypass path is selected. By knowing the absolute level of the LO input and measuring the absolute level of the RF output, gain is estimated and the bypass path is selected.

Required Test Equipment

Test Equipment	Recommended Models¹
Power meter	N1914A
Power sensor	E9304A H20
50 W terminator 3 required	909D
Adapter, Type-N (f) to 3.5 mm (m)	1250-1750
100 MHz reference	M9300A

Refer to the main Required Equipment table for a list of alternative models.

Connections and Setup Procedures

Setup for Power Meter Calibration

Setup for Bypass Adjustment