Operating instructions

2-10 Overview
Figure 2-10 illustrates the interconnection between these components in the triple-output
MBV3-100*.
Figure 2-10
MBV3-100* block diagram
Accurate −20 dB directional coupler test points are available at the input and at the output of
the amplifier. Because these test points are 75-ohm source impedance, they do not require
special test probes.
After the output amplifier, a second directional coupler provides signal to the optional VADU or
VQADU. As this signal is used only with the VADU/VQADU, you do not need to terminate this
port when the VADU or VQADU is not installed.
Do not remove the VADU pad (JXP ADU). Removing this pad effects the output test points.
MBV3-100* Installation and Operation Manual