Introduction; Operating Precautions - Agilent Technologies 11970 Series User Manual

Operation

Introduction

Introduction
This section provides information on how to make effective use of the 11970 mixers.

Operating Precautions

Refer to the sections below for specific parameters to follow prior to mixer operation.
Do not exceed the maximum ratings listed below or permanent damage to the
WARNING
mixer will result.
RF Input Power
Use the following parameters:
CW: No greater than 20 dBm. See Gain Compression values for each model number. Use an
appropriate waveguide attenuator if the output power of the unit under test exceeds the gain
compression value.
Pulse: No greater than 24 dBm at < 1 mSec
Average: No greater than 20 dBm
LO Input Power
Make sure the LO input power is no greater than 20 dBm.
Electrostatic Discharge
When installing the mixer, you must always connect the SMA cables to the spectrum analyzer BEFORE
connecting them to the mixer. This will minimize the danger of an electrostatic discharge damaging the
mixer diodes.
Waveguide Protective Foam
Do not remove, displace, or damage the white, nonconductive foam installed in the open end of the
waveguide. The foam keeps small objects from entering the waveguide.
Avoiding Mechanical Damage
Leave the waveguide flange cap on whenever the mixer is not connected to a device under test. This
protects the flange mating surface from scratches, which can degrade the mixer's performance.
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