REFLECTOR:WSI stuff
Scott Baker - Velocity
reflector@tvbf.org
Fri, 19 Sep 2003 07:22:14 -0400
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Fred,
The AV100 installation manual suggests the use of a ground plane. We
installed the factory unit without a ground plane - test operated the system
with the aircraft parked - and everything appeared to be okay. When we flew
the aircraft however, the receiver had a difficult (almost impossible) time
staying locked onto the satellite. I spoke with our tech rep at WSI - who
said that "truth be told ...the satellite broadcasting the WSI data is very
low power ... which makes it important that we give the antenna every
advantage possible to do it's job" ... meaning, it would be best if the
antenna had a ground plane. At Wayne and Paul's suggestion I installed a 2
square foot ground plane "shelf" that is suspended under the canard hatch
cover - and it made a big improvement. The WSI signal reception is (now)
strong in flight.
Scott B.
-----Original Message-----
From: Fred Marconi [mailto:fmarconi@bellsouth.net]
Sent: Thursday, September 18, 2003 11:55 PM
To: reflector@tvbf.org
Cc: Larry Hollman; Larry Holland; Scott Baker
Subject: Re: REFLECTOR:WSI stuff
Wayne:
I talked with Scott Baker about this when I was there this past Monday and
he advised me that the GPS antenna is being placed in the nose of the plane
over the light and that it works fine. Also he does not make any mention of
a ground plane.
Fred
----- Original Message -----
From: Wayne Lanza
To: reflector@tvbf.org
Sent: Wednesday, September 17, 2003 9:30 PM
Subject: REFLECTOR:WSI stuff
Hi Bob,
The guys have installed the WSI receiver in the new XL demo plane
and are having reception problems. You have had good luck with the
system and I am curious as to how & where you mounted the antenna.
My take is to mount it to a large ground plane above the machinery
atop the canard. This should give us about 2.5 square feet of plane
and hopefully fix the problem, the ground plane they have now is
about 4" x 12" on top of the canard and amongst the servo motors...
What are you feelings/comments?
Many Thanks & Fly Safe,
Wayne Lanza
P.S. Do you know any of these guys?
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<DIV><SPAN class=3D031261511-19092003><FONT face=3DArial color=3D#0000ff =
size=3D2>Fred,</FONT></SPAN></DIV>
<DIV><SPAN class=3D031261511-19092003><FONT face=3DArial color=3D#0000ff =
size=3D2>The=20
AV100 installation manual suggests the use of a ground plane. We =
installed=20
the factory unit without a ground plane - test operated the system with =
the=20
aircraft parked - and everything appeared to be okay. When we flew =
the=20
aircraft however, the receiver had a difficult (almost impossible) time =
staying=20
locked onto the satellite. I spoke with our tech rep at WSI - who =
said=20
that "truth be told ...the satellite broadcasting the WSI data is very =
low power=20
... which makes it important that we give the antenna every advantage =
possible=20
to do it's job" ... meaning, it would be best if the antenna had a =
ground=20
plane. At Wayne and Paul's suggestion I installed a 2 square foot =
ground=20
plane "shelf" that is suspended under the canard hatch cover - and it =
made a big=20
improvement. The WSI signal reception is (now) strong in=20
flight.</FONT></SPAN></DIV>
<DIV><SPAN class=3D031261511-19092003><FONT face=3DArial color=3D#0000ff =
size=3D2>Scott=20
B.</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Fred Marconi=20
[mailto:fmarconi@bellsouth.net]<BR><B>Sent:</B> Thursday, September =
18, 2003=20
11:55 PM<BR><B>To:</B> reflector@tvbf.org<BR><B>Cc:</B> Larry Hollman; =
Larry=20
Holland; Scott Baker<BR><B>Subject:</B> Re: REFLECTOR:WSI=20
stuff<BR><BR></FONT></DIV>
<DIV><FONT size=3D4>Wayne:</FONT></DIV>
<DIV><FONT size=3D4></FONT> </DIV>
<DIV><FONT size=3D4>I talked with Scott Baker about this when I was =
there this=20
past Monday and he advised me that the GPS antenna is being =
placed in the=20
nose of the plane over the light and that it works fine. Also he =
does=20
not make any mention of a ground plane. </FONT></DIV>
<DIV><FONT size=3D4></FONT> </DIV>
<DIV><FONT size=3D4>Fred</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dwlanza@bellsouth.net =
href=3D"mailto:wlanza@bellsouth.net">Wayne=20
Lanza</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dreflector@tvbf.org=20
href=3D"mailto:reflector@tvbf.org">reflector@tvbf.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, September =
17, 2003=20
9:30 PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> REFLECTOR:WSI =
stuff</DIV>
<DIV><BR></DIV>Hi Bob,<BR>The guys have installed the WSI receiver =
in the=20
new XL demo plane<BR>and are having reception problems. You have had =
good=20
luck with the<BR>system and I am curious as to how & where you =
mounted=20
the antenna.<BR>My take is to mount it to a large ground plane above =
the=20
machinery<BR>atop the canard. This should give us about 2.5 square =
feet of=20
plane<BR>and hopefully fix the problem, the ground plane they have =
now=20
is<BR>about 4" x 12" on top of the canard and amongst the servo=20
motors...<BR>What are you feelings/comments?<BR><BR>Many Thanks =
& Fly=20
Safe,<BR>Wayne Lanza<BR><BR><BR>P.S. Do you know any of these =
guys?<BR><BR>
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