Dear list members, My DIY GPSDO has a rather well defined dependence to the environmental temperature, which correlates almost linearly with a frequency shift of the OCXO. However, at times I see the error against the GNSS reference increasing with its case temperature not warranting such effect.
My antenna is one of those cheap, magnetic, active antennas you'd put on a car roof. It's facing south and has full exposure to the sun, obviously. During sunrise I see the TIC error increasing 20ns-30ns over lets say 2000 seconds. The GPSDO case temperature rises, too, during that time as the room temperature increases, but it is only by 0.3°C. I'm wondering if the temperature of the antenna, which of course rises much faster than the room temperature, can have an effect of this magnitude? Best regards, Matthias _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe send an email to time-nuts-le...@lists.febo.com
