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HP35660A Question

Question asked by Reedman on Aug 31, 2010
Latest reply on Sep 2, 2010 by Reedman
I have connected the signal source to Channel 1. 1 Vrms output/input. Uniform window. Looking at Spectrum Channel 1. That's it.
I have a question about the spectrum amplitude I see using  Single Frequency versus Periodic Chip source.
With Periodic Chirp, the amplitude is -26 dBrms  = (10 log [1/400]), where the 400 comes from the bins in the analyzer
With Single Frequency, I get  0 dBrms. 

Why the difference?

Thanks in advance.

P.S. If anyone has a "Getting Started Guide" for the HP35660A in pdf format to share, please speak up.