[time-nuts] new WWVB BPSK dev board

[David G. McGaw]

Maybe the link came through the list OK?


On 12/4/18 11:16 PM, David G. McGaw wrote:
> Sorry about that garbled link.  Blame Dartmouth's over-zealous IT. Just
> look for "rtl-sdr direct sampling mode" at rtl-sdr dot com.
>
>
> On 12/4/18 11:09 PM, David G. McGaw wrote:
>> Actually, an RTL-SDR can because there is direct access to the ADC
>> available by soldering to internal pads:
>> https://na01.safelinks.protection.outlook.com/?url=www.rtl-sdr.com%2Frtl-sdr-direct-sampling-mode%2F&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7C60246767b871406285c808d65a68a8a7%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636795802882698879&sdata=qu9IZ7jrigjcDqD%2B1d9daSfIHttr3Nn%2Fh0L5mg%2FTsbg%3D&reserved=0  That will give you 8-bit,
>> 14.4Msps.
>>
>> But as has also been said, a good sound card sampling 24 bits at 192kHz
>> can be used.
>>
>> David N1HAC
>>
>>
>> On 12/4/18 6:54 PM, Poul-Henning Kamp wrote:
>>> --------
>>> In message <2e7cf0ff-4094-2750-4874-96dfe2efe485 at earthlink.net>, jimlux writes:
>>>
>>>> I'm going to bet that the 8 bit RTL-SDR isn't going to work on 60kHz.
>>> I don't know about the RTL-SDR, but 8 bits will get you quite far with
>>> slow moving time signals like WWVB because you can average for minutes
>>> if you want - provided you feed the ADC a good stable clock.
>>>
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