[time-nuts] Z3805A high value PU
Mark C. Stephens
marks at non-stop.com.au
Wed Apr 17 01:36:57 UTC 2013
Dear Fellows,
I recently purchased a pair of Z3805A off eBay seller tommy_chou.
I have fired them up with a MaxRad 26db timing antenna attached to each.
The antennae have a clear view of most of the sky.
The receivers are having no problems seeing enough satellites.
The problem I am seeing on both is the predicted uncertainty is high compared to other receivers I have seen.
I am experiencing a PU of ~8us for the first and ~24us for the second.
My questions are,
What could be causing such bad figures?
Is it an oven problem?
Can I tweak it out?
Many Thanks,
mark
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