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Option Esc External Source Control
Using the M1970 Series Mixers with X-Series Signal Analyzers (Option EXM)
Using the M1970 Series Mixers with X-Series Signal Analyzers (Option
EXM)
Operating precautions
WARNING Do not exceed the maximum ratings listed below or permanent damage to the
mixer will result.
RF input power
Use the following parameters:
CW No greater than 20 dBm
Peak Pulse No greater than 24 dBm at <1 μsec
See the gain compression values for each model mixer. Use an appropriate
waveguide attenuator if the output power of the unit under test exceeds the gain
compression value.
LO input power
LO input power is set by the internal signal analyzer LO alignment. However, the
LO input must not exceed 20 dBm.
Always use a high quality low loss SMA cable since this will allow the longest cable
length, and prevent damage to the mixer SMA female connector.
Electrostatic discharge
When installing the mixer, always connect the LO/IF SMA cable to the signal
analyzer BEFORE connecting to the mixer. This will minimize the danger of an
electrostatic discharge damaging the mixer diodes.
Connect only one mixer at a time
The automatic LO adjustment and mixer ID process assumes only one mixer is
connected to the analyzer's USB and SMA EXT MIXER connections.
Waveguide protection foam
Do not remove, displace or damage the nonconductive foam installed in the open end
of the waveguide. This foam keeps small objects from entering the waveguide.
Provide mechanical support for the mixer
Assure the mixer body is properly supported so it does not present any stress on the
waveguide connection. Instrument option 301 provides a jackstand that allows a
stable support and height adjustment.
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