[time-nuts] WWVB PM Receiver

[J. Forster]

I'm actually not joking about an FOIA. It would probably be worth asking
John Lowe for the design and code first though.

YMMV,

-John

=========



> Brooke
> There is indeed additional detail in the spec that we had not seen. So I
> will do some reading tonight.
> However I am still working on the d-psk-r and at least at this point may
> have a mod that works. It does on my local home brew bpsk generator even
> when I add a great deal of noise. Though the noise added is really a flat
> noise nothing like the ugly stuff on 60 KHz with impulse and such. But
> what
> I have is not a very generalized approach.
> Whats very interesting and others have mentioned there can be some very
> creative ways to approach the BPSK if all you are interested in is getting
> rid of the BPSK. You can down convert the signal and sample on a sound
> card
> using tools like Spectrum Lab. Talk about a sledge hammer approach. Its
> pretty interesting.
> But like you I am curious is there a chip set that does the magic
> available
> from DigiKey for $3.95? Would hope that what ever comes out might have a
> phase control signal. Or does this cost an arm and a leg?
> Regards
> Paul
> WB8TSL
>
> On Tue, Sep 25, 2012 at 5:18 PM, Brooke Clarke <brooke at pacific.net> wrote:
>
>> Hi:
>>
>> So how do we make a receiver to decode the PM format?
>>
>> Have Fun,
>>
>> Brooke Clarke
>> http://www.PRC68.com
>> http://www.**end2partygovernment.com/**2012Issues.html<http://www.end2partygovernment.com/2012Issues.html>
>>
>> J. Forster wrote:
>>
>>> ---------------------------- Original Message
>>> ----------------------------
>>> Subject: WWVB Protocol Notification
>>> From:    "John Lowe" <lowe at boulder.nist.gov>
>>> Date:    Tue, September 25, 2012 1:11 pm
>>> To:
>>> Cc:      "Lowe, John P" <john.lowe at nist.gov>
>>> ------------------------------**------------------------------**
>>> --------------
>>>
>>> Please see:
>>>
>>> http://www.nist.gov/pml/**div688/grp40/wwvb.cfm<http://www.nist.gov/pml/div688/grp40/wwvb.cfm>
>>>
>>> for pdf of final WWVB Protocol .
>>>
>>>
>>>
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>>
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>