[time-nuts] RFX GPSDO - Anybody played with one of these?
jimlux at earthlink.net
Tue Oct 2 22:37:32 EDT 2012
On 10/2/12 2:36 PM, SAIDJACK at aol.com wrote:
> Hello Paul,
> thanks much for the feedback!
> Yes, we think we have identified a nice combination of oscillators, GPS,
> and firmware that seems to work pretty well. The GPSTCXO units cannot be
> compared to a lower cost $150 Thunderbolt in terms of phase noise or stability
> of course, and they have CMOS 10MHz outputs, but then the TB's cost around
> $1500 new I guess.
> We think the GPSTCXO's and LC_XO type units will work quite well wherever
> standard OCXO's are used today, and power/size/weight are an issue.
Intriguing.. Can it handle the Doppler, etc., for a cubesat in LEO?
(7km/s) The total Doppler isn't usually the issue (the GPS satellites
are moving faster, after all), but the receiver may not work for high
velocities, high altitudes?
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