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 <[email protected]> wrote: > 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 frequencies) beating against each other. > The result is > going to show up as who knows what to this or that receiver. With a > precision receiver, > you might even have issues from the guy two houses away …... > > Bob > > > On Aug 26, 2018, at 1:08 PM, paul swed <[email protected]> wrote: > > > > 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 <[email protected]> > > wrote: > > > >> With the watch being physically close to the faux WWVB "transmitter", > one > >> is in > >> the so-called "near field" regime, where the field strength (V/m) falls > as > >> the inverse > >> cube of the distance. If one is putting the watch, say, within a few > >> inches of the > >> transmitter, reliable reception should be available yet the signal > should > >> be literally > >> undetectable by any practical receiving device more than a few feet > away. > >> Hence, > >> meeting the FCC field strength limit should be trivial.if the device is > >> used as pictured. > >> However, if one cranks up the power enough to reliably cover one's > entire > >> house, > >> then there might be a problem depending how close the nearest neighbor > >> lives, > >> even at levels well within the FCC limit he quotes. > >> > >> Taking the near field relationship in hand, 40 uV/m at 300m would > translate > >> into > >> a whopping 0.135 V/m at 20 meters range, more than enough to feed most > >> peoples' > >> entire house. So the pragmatic issue would again be- neighbors. On the > >> other > >> hand, most of them would never be aware of the local signal as long as > they > >> get good > >> time settings, unless they live close enough to Ft. Collins for the two > >> signals to > >> contend with each other. > >> > >> It looks to me like the ferrite rod antenna is considerable overkill. > Even > >> with no > >> purposeful antenna I'd expect leakage to yield sufficient signal for at > >> least a few > >> inches. > >> > >> Dana > >> > >> > >> On Sat, Aug 25, 2018 at 8:11 PM Wayne Holder <[email protected]> > >> wrote: > >> > >>> This guy has what looks like a well thought out design using a > Sirf-Based > >>> GPS and ATTiny44A chip to generate a signal to update his watch: > >>> > >>> https://www.anishathalye.com/2016/12/26/micro-wwvb/ > >>> > >>> Unfortunately, he doesn't seem to have published a schematic or his > >> source > >>> code. But, he covers enough detail that I think it wouldn't be too > hard > >> to > >>> replicate what he's done. Or, perhaps he would disclose these details > if > >>> contacted. > >>> > >>> Wayne > >>> > >>> On Sat, Aug 25, 2018 at 4:33 AM, D. Resor <[email protected]> > >> wrote: > >>> > >>>> I thought I would search in a different way for a WWVB signal > generator > >>>> design. I found this item. While the designer explains it isn't as > >>>> accurate as WWVB it may be another starting point. > >>>> > >>>> http://www.tauntek.com/wwvbgen-low-cost-wwvb-time- > signal-generator.htm > >>>> > >>>> > >>>> > >>>> Donald R. Resor Jr. T. W. & T. C. Svc. Co. > >>>> http://hammondorganservice.com > >>>> Hammond USA warranty service > >>>> "Most people don't have a sense of humor. They think they do, but they > >>>> don't." --Jonathan Winters > >>>> > >>>> _______________________________________________ > >>>> time-nuts mailing list -- [email protected] > >>>> To unsubscribe, go to http://lists.febo.com/mailman/ > >>>> listinfo/time-nuts_lists.febo.com > >>>> and follow the instructions there. > >>>> > >>> _______________________________________________ > >>> time-nuts mailing list -- [email protected] > >>> To unsubscribe, go to > >>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > >>> and follow the instructions there. > >>> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to http://lists.febo.com/mailman/ > >> listinfo/time-nuts_lists.febo.com > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
