Re: [time-nuts] WWVB Chronverter update progress

2018-08-26 Thread Bob kb8tq
Hi Well …. 1Hz at 60KHz is …. errr … (off to Google Calc …) …. 16.67 ppm. That’s a pretty major lock range for a TCXO. It’s likely > 10X what an OCXO will do. What the bare crystal in a watch will do … who knows. Bob > On Aug 26, 2018, at 5:52 PM, paul swed wrote: > > Looks like the signal

Re: [time-nuts] WWVB Chronverter update progress

2018-08-26 Thread paul swed
Looks like the signal has to be with in 1 hz. I new it was tight. Need a bit more experimentation across the several receivers though they all use the same approach with a sharp Xtal filter. On Sat, Aug 25, 2018 at 8:24 PM, paul swed wrote: > My mistake the chronverter uses a pic 12f1840. > >

Re: [time-nuts] WWVB Signal Generator

2018-08-26 Thread paul swed
That would be a great neighbor to have but I can tell you around here its the phone. Not to concerned about someone putting up a wwvb replacement. And I can always up the power. Chickle. Regards Paul On Sun, Aug 26, 2018 at 2:34 PM, Bob kb8tq wrote: > Hi > > The gotcha is if you have neighbors

Re: [time-nuts] WWVB Signal Generator

2018-08-26 Thread Bob kb8tq
Hi The gotcha is if you have neighbors two or three doors away that *also* put up one of these devices. You then have a real problem with the neighbor(s) in the middle. The wavelength is long enough that Raleigh issues won’t get you. You still have the two signals ( at slightly different

Re: [time-nuts] WWVB Signal Generator

2018-08-26 Thread paul swed
Agree with the conversation. With respect to neighbors when the day comes they may ask you to boost your signal. :-) Granted maybe the day won't come but at least having your local clocks work is nice. Regards Paul WB8TSL On Sat, Aug 25, 2018 at 10:29 PM, Dana Whitlow wrote: > With the watch