Jim I want to be careful this is not my thread. the question came up. Why sine wave. Though I do appreciate your comments. Regards
On Mon, Feb 6, 2012 at 10:26 AM, Jim Lux <jim...@earthlink.net> wrote: > On 2/6/12 6:47 AM, paul swed wrote: > >> Well right you are thats why todays chips have equalizers and such. >> But then its all getting crazy complicated even though its in a itty bitty >> chip. >> My distribution is made of high quality television analog amps and I have >> in general made amplifiers and such with parts I can still easily pickup >> and solder to. >> But still I always do wonder about tinkering with a square wave dist >> system. Though I doubt I will ever actually do anything. >> KISS is the general principal. >> Regards >> Paul. >> >> > > "adaptive equalizer" and "precision frequency/time distribution" are going > to be very uneasy bedfellows.. > > Of course, if you're just looking for distribution of house black burst or > analog video, that's probably ok. You're looking for good waveform > fidelity, rather than precise knowledge of time delays. > > In most of the precision measurement systems I fool with we look for parts > in 1E10 or better. Say, 1 degree of phase at 32 GHz.. if you're > multiplying up from a 10 MHz reference for that, the x3200 multiplication > means you need to be pretty savvy about how your references are distributed > (and, as well, how a phase change in the harmonic content might screw up > the zero crossings) > > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.