Hugo's idea of using a Sat dish to zoom in on a WAAS  Sat as discussed in 
the below paper is quite brilliant I think, and it  seems one should be able 
to make use of it by disabling the GPS sats (via mask  angle for example) in 
receivers that support WAAS, and that are used in position  hold mode. 
According to their plots the  WAAS-only setup gave them a huge improvement 
in timing accuracy. 
One should be able to make a  much smaller dish, as all that gain is useful 
but probably not  needed. 
bye,
Said 
From: Sam <_li...@digitalelectric.com.au_ 
(mailto:li...@digitalelectric.com.au) >
Date: May 11, 2012 5:14:24  PDT
To: "Discussion of precise time and frequency measurement"  
<_time-nuts@febo.com_ (mailto:time-nuts@febo.com) >
Subject: Re: [time-nuts] Trimble  Resolution SMT - good/bad/indifferent?
Reply-To: Discussion of  precise time and frequency measurement 
<_time-nuts@febo.com_ (mailto:time-nuts@febo.com) >I  uploaded the FEI-Zyfer 
WAAS 
papers to zippyshare if anyone is  interested.

_http://www32.zippyshare.com/v/66696070/file.html_ 
(http://www32.zippyshare.com/v/66696070/file.html) 


Sam.


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