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Can someone HELP MEASURING IP3 ON A MIXER

Question asked by STAR36 on Oct 15, 2008
Latest reply on Oct 22, 2008 by STAR36
I'm trying to measure third order on  a mixer but  it seem that i'm doing some thing wrong.I do know when measuring amplifier u would measuring the power on the output of the amp and with mixer u would set  -10 1 on 2 gen and LO which in this case +10 on gen #3 
this is  the set up i use a power divder and to split GEN1,2 and hook it up to RF then my LO to GEn #3 and my IF to the spectrum
in this case my freq is 1500 so i would set GEN1 1500MHZ,GEN2 1490MHZ
and GEN3 1560MHZ but my reading is 53db which  does not seem correct my spec is 13 min even divide that by 26.5 +my LO it dont seem correct what i'm **** wrong
Thanks  

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