AnsweredAssumed Answered

856XE Fractional N spurious

Question asked by DavidSudry on Jun 25, 2012
Latest reply on Mar 12, 2014 by techfreakz

I have seen several 8563E, 8561E spectrum analyzers with about 500KHz spurious at a level of -50dbc.
I believe the spurious is generated at the Fractional N Synthesizer at the A14 Frequency Control Assembly.

Has someone noticed this and found a cure for it?

Is there a simple way to reduce this spurious level? Replace the The Fractional N divider?

I have the schematics for this Assembly and I am willing to share it with someone that can help.


David Sudry
Carmel Wireless
Shoresh, Israel