[ntp:questions] Re: GPS mask angle

Paul Croome Paul.Croome at softwareag.com
Mon Jan 26 11:10:16 UTC 2004


David Cornejo <dave at dogwood.com> wrote in message news:<mailman.55.1075002467.1757.questions at ntp.org>...
> Hi,
> 
> The GPS receiver I'm using (an Oncore M12+) has a mask angle setting, by 
> default 10 degrees.
> 
> The antenna is at an altitude of about 600ft with a clear view of the 
> pacific ocean, is there any advantage or disadvantage for timing purposes 
> to lowering the mask angle to 0?
> 
> thanks,
> dave c

David,

The signals from low-elevation satellites will traverse more metres of
atmosphere, so the ionosphere and troposphere propagation corrections 
may be less accurate. 

Paul



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