[time-nuts] new WWVB BPSK dev board

[Bob kb8tq]

Hi

There have been several posts in this thread documenting some pretty
amazing performance for the chip. The wall clock I have here (with
what I assume is the same chip) does *way* better than anything I’ve
had before. 

Bob

> On Dec 5, 2018, at 8:56 AM, Attila Kinali <attila at kinali.ch> wrote:
> 
> Hi Bob,
> 
> On Tue, 4 Dec 2018 16:43:57 -0500
> Bob kb8tq <kb8tq at n1k.org> wrote:
> 
>> The one thing the Everest chips do indeed do is demonstrate that initial signal 
>> acquisition can be done under really awful conditions. Getting the same info off 
>> of WWVB with AM only …. not so much ….At least not so much with a receiver 
>> chip that is out on the market. 
> 
> I have not seen any measurement/demonstration of this property yet.
> And my back of the envelope calculations showed that BPSK modulation
> shouldn't give any substantial gain. Do you have any references where
> I could read up on this aquisition gain?
> 
> 			Attila Kinali
> 
> -- 
> It is upon moral qualities that a society is ultimately founded. All 
> the prosperity and technological sophistication in the world is of no 
> use without that foundation.
>                 -- Miss Matheson, The Diamond Age, Neal Stephenson
> 
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