[time-nuts] Re: Time Signal Transmitter (low power)

[paul swed]

Not speaking to any legal aspects.
But a loop antenna will do the job. Something like 4 loops 20' by 20' in
the basement or attic. Then a signal source and power amplifier. But the
serious challenge is getting the loop to transmit anything at all. The
efficiency is very bad at 60 KHz.
There was a great thing called a chroneverter that works really well. No
longer available unfortunately. It was very well thought out. A shame.
Regards
Paul
WB8TSL

On Tue, Jan 25, 2022 at 2:16 PM Bob kb8tq <kb8tq at n1k.org> 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 <artgodwin at gmail.com> 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 <kb8tq at n1k.org> 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 <jim at luxfamily.com> 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 <agdunne at hotmail.com>
> >> 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
> >>>>>
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