and it is relative easy to make 10MHz from 8MHz with analog frequency
manipulation, which generates less jitter
73
On 4/4/2016 4:27 PM, Attila Kinali wrote:
On Mon, 4 Apr 2016 17:56:29 -0400
Bob Camp <kb...@n1k.org> wrote:
The variable frequency output on the uBlox (and other) GPS receivers
has come up many times in the past.
If you dig into the archives you can find quite a bit of data on the
(lack of) performance of the high(er) frequency outputs from the various GPS
modules. They all depend on cycle add / drop at the frequency of their free
running TCXO. Regardless of the output frequency, that will put a *lot* of
jitter into the output.
That's why you should put the output frequency of the ublox modules
to an integer divisor of 24MHz. Ie 8MHz works but not 10MHz.
Attila Kinali
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