Hello Bill - Fine! I even don't understand much of Excel ;-)
regards - Henry Bill Dumke schrieb: > Henry, > > Yes, I will generate a pdf file everyone can view. I don't know anything > about > octave. That is left to the reader. But once you have the equations, etc. > I > would think any math program would work fine. You could probably even use > Excel. > > Bill WA9PWR > > ehydra wrote: >> Thanks Bill! >> >> Are you willing to report your MathCad adventures later on? >> >> Is it possible to follow the experiments with Octave? >> >> >> regards - >> Henry >> >> >> Bill Dumke schrieb: >> >>> Henry, Henning, and David, >>> >>> I called Silicon Laboratories today and Kevin Smith was kind enough to run >>> phase >>> noise plots for both the CMOS and LVDS versions of the Si570 at an >>> operating >>> frequency of 112 MHz. Divided by 4 this will result in 28 MHz. The actual >>> frequency of operation is not that important because phase noise can be >>> easily >>> scaled to a different operating frequency. I chose 112 MHz because it was >>> near >>> the frequencies I used for the 10 meter prototype crystal oscillator I >>> used a >>> while back And phase noise gets better at lower frequencies. >>> >>> I will be working on a system analysis of phase noise in Mathcad for >>> different >>> modes of operation, and I can get jitter for the digital modes and also >>> incidental FM noise for the FM crowd on 10 meters which limits the signal >>> to >>> noise ratio, as well the usual degradation in noise figure. I intend on >>> also >>> including reciprocal mixing which is usually what clobbers HF transceivers >>> that >>> have noisy LOs, like my old Yaesu FT-757GX for example. It didn't work at >>> all >>> at a field day site with a lot of strong signals (other transmitters) >>> nearby. >>> >>> I have been learning a lot about phase noise at work recently for a project >>> I >>> have been designing, so this should be fairly straight forward. >>> >>> >> >> > -- www.ehydra.dyndns.info
