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<div class="moz-cite-prefix">On 7/26/2012 1:42 PM, Simon HB9DRV
wrote:<br>
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I
have a Thunderbolt on my balcony; using Lady heather I can
confirm that my house hasn’t moved by more than a few cms
in the last year </span><span
style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span></p>
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Have you checked the altitude too ? My Thunderbolt tells me that
from the morning to the evening of the same day<br>
my house moved up and down by almost 30 meters.... <span
class="moz-smiley-s1"><span> :-) </span></span> and the antenna
is firmly attached to one of the chimneys....<br>
<br>
I guess that is one of the reasons why GPS is not used on any
aircraft, at least as an altitude measuring device...<br>
<br>
<div class="moz-signature">-- <br>
<i><b>73 Alberto I2PHD</b></i>
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