[time-nuts] Trimble Resolution SMT GG weirdness

[Daniel Ginsburg]

On 23.04.2013, at 6:15, Hal Murray wrote:

> 
>> I wonder, what kind of timing GPS gives 112ns wander?
> 
> How good is your antenna?  112 ns is roughly 112 feet.  That's not at all 
> surprising if your antenna is inside or under trees.
> 


Not perfect, but should be reasonably good. It's an external magnetic antenna on my windowsill.
Anyway, +-400ns I'm seeing translates to +-120m in position. My surveyed location is better than this.

> You might watch the number of satellites and/or watch the position while it 
> does a survey.
> 

6-10 SVs, with PDOP in range 1.6 - 3.9 (about 2.0 most of the time). 

> 
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