[time-nuts] WWVB Dephaser Question

[jimlux]

On 10/12/20 7:40 AM, paul swed wrote:
> John really appreciate the pointer. Though it doesn't help wwvb BPSK its a
> really good intro to SDR and DSP super simple. A good way to get your feet
> wet. Hmmm is there a parts order soon? :-)
> Regards
> Paul
> WB8TSL


And the teensy has plenty of space and speed to implement a PLL for 
doing BPSK demodulation.


> 
> On Mon, Oct 12, 2020 at 10:33 AM Bob kb8tq <kb8tq at n1k.org> wrote:
> 
>> Hi
>>
>> The “ideal” antenna solenoid would be a bit longer ( say 2 X to 5X ).
>> The turns should be spaced apart by a few percent of the length.
>> ( so turns over 30 or so … not so much …).
>>
>> How much better is “ideal” compared to “just get it done?”.  At least
>> from the stories that are told, it is significant. Since all these antennas
>> are very small (so non-ideal) it’s a bit of a snail race.
>>
>> Bob
>>
>>> On Oct 12, 2020, at 3:42 AM, John C. Westmoreland, P.E. <
>> john at westmorelandengineering.com> wrote:
>>>
>>> Paul,
>>>
>>> Doesn't the post by Chris Howard above appear to be a good/great starting
>>> point?
>>> Seems like that approach could be extended.
>>>
>>> https://github.com/chris-elfpen/Teensy4WWVBsdr
>>>
>>> 73's,
>>> John
>>> AJ6BC
>>>
>>>