[time-nuts] new WWVB BPSK dev board

[jimlux]

On 12/4/18 8:09 PM, David G. McGaw wrote:
> Actually, an RTL-SDR can because there is direct access to the ADC
> available by soldering to internal pads:
> www.rtl-sdr.com/rtl-sdr-direct-sampling-mode/  That will give you 8-bit,
> 14.4Msps.
> 

I'm not sure a 8bit ADC gives enough dynamic range, even after 
downconversion.
The RTL-SDR is a pretty noisy receiver, too.


> 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.
>>
>