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HP 8566A using HP 11970 mixers

Question asked by bruce@westcut.com on Sep 4, 2007
Latest reply on Sep 13, 2007 by hopcraft

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I am trying to use an 8566A with 11970 series mixer. Manual says SHIFT,U sets up to use mixer - it works for the 18 - 26.5 mixer, but I cannot find out how to use higher band mixers - I would like to use the 40 - 60GHz mixer. Does anyone know how to do this. Literature on 8566A indicates that mixers to 100GHz can be used but manual does not seem to mention how.

Thanks! :?

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hopcraft Sep 13, 2007 3:18 PM
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Although these instruments are before my time, I was looking over the guide to the 11974 series (http://cp.literature.agilent.com/litweb/pdf/5952-2748.pdf) and it mentions that the mixers are compatible with the 8566B, but the 8566A requires an upgrade kit (which makes it into an 8566B).

The 8566B manual states that you can set the start and stop frequency (FA + FB) after the external mixer preset, which will automatically change the harmonic used for tuning. If you wish to pick a particular LO harmonic, you can do so with HNLOCK.
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HP 8566A using HP 11970 mixers

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