divides or > multiplies to 10 MHz harmonic or sub harmonic, you can indeed mix the > signal to 10 MHz. > > If you do so, you will need to filter the outputs, since the mixing > spurs will mess up the input to the multiplier. > > If the generator you use for the mixing has more noise or jitter than > the sources, that noise is likely to de-correlate unless

> > As written in Wikipedia and as I have always understood: "The term > RADAR was coined in 1940 by the [1]U.S.

Seems so obvious but makes me wonder if adding a small coin to top of the DIP can oscillator is not only helping thermal wise but is somehow helping improve phase noise. I think we have tended to think of a DDS as being "it". That is, we can generate something stable and precise digitally and it will be good no matter what.

> > Even if you have a word clock input, you're going to have to > synthesize that from the 10 MHz.

. -- M On Fri, Oct 11, 2019 at 10:57 AM Francesco Restuccia via USRP-users < usrp-users@lists.ettus.com> wrote: > Dear all, > I have some questions regarding the DDC implementation (ddc_chain.v, > usrp2): > > 1) Why do we need two half-band filters (one large and one small) after > the CIC? What is their purpose? Can’t we use just one half-band?

>From Patrick Comins: With John Hannan, Katie O'Brien, Emily McKay and their friend Jill - Stratford/Bridgeport, Long Beach/Pleasure Beach - ~20 NELSON'S SHARP-TAILED SPARROWS, 1 SALTMARSH SHARP-TAILED SPARROW, several WHITE-CROWNED SPARROWS, along with Field, Song, Savannah, Swamp, White-throated, Towhee and junco made for a 10 'sparrow' day.

. ----- $ Runsun Pan, PhD $ libs: doctest , faces ( git ), offline doc ( git ), runscad.py( 1 , 2 , git ); $ tips: hash( 1 , 2 ), sweep , var( 1 , 2 ), lerp , animGif , precision( 1 , 2 ) -- View this message in context: http://forum.openscad.org/Difference-intersection-object-disappears-at-preview-in-Windows-10-tp15113p15115.

. -- View this message in context: http://forum.openscad.org/Difference-intersection-object-disappears-at-preview-in-Windows-10-tp15113p15123.html Sent from the OpenSCAD mailing list archive at Nabble.com.

I agree with the injection-lock method, but just want to suggest that since most uPs and uCs have their own CMOS oscillator built in, the simplest solution would be to just use that as intended, with a cheap 16 MHz crystal or ceramic resonator, and injection lock it to a low impedance version of the 10 MHz clock, via an RCD network.

On 2016-03-15 10:15, Mike Williams via USRP-users wrote: > What is the range of acceptable power levels for the X3x0 10 MHz reference? > > What are the 1 PPS input levels and termination impedance?