Hi I believe I suggested this approach back about 6 months ago. There was a significant controversy about my use of the term "seems simple".
Bob On Jun 15, 2013, at 9:51 AM, paul swed <[email protected]> wrote: > As I have been working on the d-psk-r its always been clear to me that a > simple non invasive approach to fix the 8170 class clocks existed. Since > the d-psk-r has consumed far more time then I ever would have guessed, I > would like to offer the approach up to the group. Maybe someone else has > some time to do this and it is easy. However with easy there are trade offs > as always. > > Here is teh approach > Using a wwvb clock chip like the MSA 8160 still obtainable (And no doubt > others say from an atomic clock) > Take the am time code out. > Feed that to a NE 602, SA602 or 612 series balanced modulator there all the > same as a AM modulator. > The 60Khz comes from a tuning fork crystal using the SA602 built in > oscillator. > Attenuate the output to 100 uv or so. I don't think you really need any > filtering. > > There you go. No real magic. > Possible downsides > Drift as the tuning fork crystals are OK. If true use a better source > I expect the tick to be slightly delayed by this method. > Regards > Paul > WB8TSL > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
