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

[Bob kb8tq]

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, rcbuck at atcelectronics.com 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 <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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