[time-nuts] Ebay FE-5680A Rb: Are they that good?

paul swed paulswedb at gmail.com
Fri Dec 9 08:21:02 EST 2011

Think you are correct for most things we do.
However in communications for mixing and such a sine wave is desirable and
a very clean output to minimize things like IMD and other products as we
get the 10 MC to its final frequency. Since you are a ham you may
appreciate that.

On Fri, Dec 9, 2011 at 8:10 AM, Marco IK1ODO -2 <ik1odo at spin-it.com> wrote:

> Javier,
> the plots are nice, and I did the same years ago for an Efratom FRS-C.
> Found about the same data. The only point is that with the spectrum
> analyzer you see the S/A pahse noise, not the Rb, wich has to be orders of
> magnitude lower.
> About the comments on the waveform and harmonics contents: who cares about
> having the 2nd harmonic at -30 or -50 dB? For any practical use one has to
> square the signal, and the original harmonic content is of no pratical
> interest, or I am missing something ...
> 73 - Marco IK1ODO / AI4YF
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