[time-nuts] GPS first LO need to be locked?
paulswedb at gmail.com
Tue Apr 4 10:25:42 EDT 2017
Perhaps someone could start a new thread with a different title since this
has evolved to something else then my request.
By the way the response to my question was answered by the group and its
true the first LO does not need to be locked for at least code tracking. I
really didn't prove its needed for carrier tracking.
On Tue, Apr 4, 2017 at 9:55 AM, jimlux <jimlux at earthlink.net> wrote:
> On 4/3/17 9:32 PM, Logan Cummings wrote:
>> I was able to find  here:
> So those folks were trying to use 1 ADC for all three bands, so they had
> to choose a sampling rate that lets them separate the signals later in
> But that ADC is a MAX104 - a 1GSPS, 8 bit converter - that draws 5 Watts!!!
> I'm not sure that's a good trade against a 1 or 2 bit converter for each
> band, in terms of the downstream data rate and processing.
>  was harder, and I don't have a link but a google search for the title
>> in quotes got me a link on semanticscholar that let me download the PDF.
>> Interesting stuff!
>> Hope that helps,
>> On Fri, Mar 31, 2017 at 9:17 AM, David C. Partridge <
>> david.partridge at perdrix.co.uk> wrote:
>> links  and  give 404 errors
>>> -----Original Message-----
>>> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Attila
>>> Sent: 31 March 2017 12:35
>>> To: Discussion of precise time and frequency measurement
>>> Subject: Re: [time-nuts] GPS first LO need to be locked?
>>>  "A Prototyping Platform for Multi-Frequency GNSS Receivers", by
>>> Ene and Thor, 2003 http://waas.stanford.edu/~wwu/papers/gps/PDF/
>>>  "Design of a GPS and Galileo Multi-Frequency Front-End", by Parada,
>>> Chastellain, Botteron, Tawk, Farine, 2009 http://22.214.171.124/proc/
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