[time-nuts] Can Ublox GPS NEO provide 10MHz signal?

f1chf at free.fr f1chf at free.fr
Thu Jan 19 08:57:04 UTC 2023


see here
https://content.u-blox.com/sites/default/files/products/documents/Timing_AppNote_%28GPS.G6-X-11007%29.pdf
page 10
it seems that 10 mhz have jitter problem
oscillator is 48 mhz
F1CHF


Le 18/01/2023 11:53 pm, mcleannb--- via time-nuts a écrit :
> Mauro,
> I would take " NEO-6T comes with a timepulse output which can be 
> configured
> from 0.25 Hz up to 10 MHz. The timepulse can
> either be used for time synchronization (i.e. 1 pulse per second) or as 
> a
> reference frequency in the MHz range. A
> timepulse in the MHz range provides excellent long-term frequency 
> accuracy
> and stability." as meaning that is true, you can get a programmed 
> frequency
> in the MHz range from the timepulse pin.
> Regards,
> Nic
> VK2KXN
> 
> -----Original Message-----
> From: Mauro Fiacco via time-nuts <time-nuts at lists.febo.com>
> Sent: Wednesday, 18 January 2023 9:21 PM
> To: time-nuts at lists.febo.com
> Cc: Mauro Fiacco <mauscope at gmail.com>
> Subject: [time-nuts] Can Ublox GPS NEO provide 10MHz signal?
> 
> Hi All,
> 
> I would like to drive a GPSDO from an off the shelf GPS receiver, like 
> the
> Ublox NEO.
> From the documentation, it seems that the TIMEPULSE pin can be 
> configured
> from 0.25Hz to 10MHz. Is this correct? (the documentation is a bit
> confusing!)
> 
> Am I correct that this option (if indeed is possible) should be 
> available on
> the "SparkFun GPS Breakout - NEO-M9N" board?
> 
> Many thanks,
> 
> Mauro
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