Hi Depending on the local rules and regs, (and a few details left out in the video) that setup might get you in trouble. You should be able to do this with micro-watts and good coupling.
Bob > On Jan 25, 2022, at 3:37 PM, [email protected] wrote: > > Possibly something like this? > https://www.youtube.com/watch?v=6SHGAEhnsYk&list=PL3XBzmAj53RlkM2_xRq2NodFjFtBrgzx0&index=11&t=1s > > Ray > > On 2022-01-25 12:11, Bob kb8tq wrote: >> Hi >> The original idea was a transmitter with a 20m range. The “check >> the regs” are aimed at that sort of setup. >> For something that is in contact with the clock or watch, indeed very >> low power could be used. Normal coil based radiators would make >> sense. It’s not clear just how practical wiring all that up with devices >> scattered over an area with a diameter of 40 meters. >> Bob >>> On Jan 25, 2022, at 1:19 PM, Adrian Godwin <[email protected]> wrote: >>> Would a loop surrounding the watch (like an induction loop system for >>> hearing aids) help keep the radiation lower ? >>> On Tue, Jan 25, 2022 at 6:14 PM Bob kb8tq <[email protected]> wrote: >>>> Hi >>>> It’s not clear that the regs in Australia would care about >>>> doing this in an area not covered by this or that time signal. >>>> I don’t know *what* they do or don’t say. My only concern >>>> is that we all stay out of jail :) >>>> Bob >>>>> On Jan 25, 2022, at 12:21 PM, Lux, Jim <[email protected]> wrote: >>>>> On 1/25/22 7:52 AM, Bob kb8tq wrote: >>>>>> Hi >>>>>> I would check the local rules and regs before you put money >>>>>> into one of these gizmos. At least by the rules over here, this >>>>>> sort of thing might get you in trouble. >>>>> Setting a watch 30 cm away would require *very* low power >>>>> At 20m, you'd probably be risking setting your neighbors' clocks (unless >>>> you live in the middle of a huge tract of deserted land, of which there are >>>> many in Australia) >>>>>> Bob >>>>>>> On Jan 25, 2022, at 5:29 AM, Anthony Dunne <[email protected]> >>>> wrote: >>>>>>> G'day time nut friends >>>>>>> I wonder if one of you could point me in the right direction on how to >>>> purchase (if one exists) a Time Signal Transmitter for use at the local >>>> level (range 20m) for synchronising watches and radio clocks using the >>>> various standard radio frequencies? >>>>>>> And for the transmitter itself to receive / synchronise it's time >>>> using NTP? >>>>>>> I am in Australia and we are out of range for the normal >>>> transmissions... >>>>>>> Kind regards to you all >>>>>>> Anthony Dunne >>>>>>> Sydney, Australia >>>>>>> _______________________________________________ >>>>>>> time-nuts mailing list -- [email protected] -- To unsubscribe >>>> send an email to [email protected] >>>>>>> To unsubscribe, go to and follow the instructions there. >>>>>> _______________________________________________ >>>>>> time-nuts mailing list -- [email protected] -- To unsubscribe >>>> send an email to [email protected] >>>>>> To unsubscribe, go to and follow the instructions there. >>>>> _______________________________________________ >>>>> time-nuts mailing list -- [email protected] -- To unsubscribe >>>> send an email to [email protected] >>>>> To unsubscribe, go to and follow the instructions there. >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] -- To unsubscribe send >>>> an email to [email protected] >>>> To unsubscribe, go to and follow the instructions there. >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] -- To unsubscribe send >>> an email to [email protected] >>> To unsubscribe, go to and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- [email protected] -- To unsubscribe >> send an email to [email protected] >> To unsubscribe, go to and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
