Hi J:
Some decades ago I wanted to measure mixer spurs in an automated test system and speed was very important since a lot of spur frequencies needed to be checked.
In order to see low power levels the resolution bandwidth needed to be narrow.? That means the spectrum analyzer needs to tune to the exact frequency of the spur.? A couple of synthesizers supplied the LO and RF inputs to the mixer.? All that was needed to get this to work was to connect the 10 MHz reference output from the instrument with the highest quality internal reference to the Reference Input of the other instruments in a daisy chain.
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Have Fun,
Brooke Clarke
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.
