[time-nuts] Neat toys on eBay for PN measurement

Richard (Rick) Karlquist richard at karlquist.com
Wed Jul 4 01:04:21 EDT 2007

> Basically this is a general-purpose microwave downconverter whose LO uses
> harmonics of the 640-MHz reference output from an 8662A/8663A to
> downconvert
> the signal to be measured to a frequency below 1280 MHz, where it is then
> mixed down to a baseband IF with the same 8662A's output.  An 8662A is not
> mandatory, but it's convenient because it can provide both LOs at once.

Not only is an 8662A mandatory, but it must have the optional 640 MHz output
How do you propose to operate an 11729 without an 8662?  It's not like you
feed any old 640 MHz reference into it.

Rick Karlquist N6RK

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