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Subject: Re: [LML] Antenna type and placement
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Tom,

The antennae cannot see through carbon.

Jeff






-----Original Message-----
From: TOM GARDINER <n20087@yahoo.com>
To: lml@lancaironline.net
Sent: Wed, Feb 23, 2011 8:09 am
Subject: [LML] Antenna type and placement



Folks=20
=20
I am experiencing a dreadful time getting my COM radios to perform to thei=
r full (or even half) potential in my LNC2.  I have two Bob Archer's mount=
ed in the tailcone and in the proper orientation with a VSWR of around 1.5=
 with RG 400 cable.  The antennas are fed by two Garmin 430s with a measur=
ed output of 8 watts each.  The thing is that ATC and my flying friends re=
port a consistently weak signal and the same applies on reception on my en=
d.  My airplane has the carbon tail and I built the seat bench using carbo=
n on foam (bad idea in hindsight).  I have tried another type of antenna=
 that is a dipole with a balun mounted in the  center of the baggage secti=
on in a vertical orientation but with little or no improvement in results.
=20
=20
I am beginning to suspect the Lancair supplied Gray epoxy primer which I=
 understand contains aluminum oxide in the base
=20

I am now considering mounting an external antenna but thought I would ask=
 if anybody had experienced similar issues and subsequently corrected them=
.  Any help/advice would be very much appreciated
=20
Thanks
=20
Tom
=20
LNC2=20
24 hrs




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<font color=3D'black' size=3D'2' face=3D'arial'>
<div>Tom,</div>


<div>&nbsp;</div>


<div>The antennae&nbsp;cannot see through carbon.</div>


<div>&nbsp;</div>


<div>Jeff<br>
<br>
</div>


<div style=3D"CLEAR: both"></div>
<br>
<br>


<div style=3D"FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: arial,helvetica"=
>-----Original Message-----<br>
From: TOM GARDINER &lt;n20087@yahoo.com&gt;<br>
To: lml@lancaironline.net<br>
Sent: Wed, Feb 23, 2011 8:09 am<br>
Subject: [LML] Antenna type and placement<br>
<br>


<div id=3DAOLMsgPart_2_1560bff1-5418-4657-9f9d-bb59c8c5fc14>
<STYLE type=3Dtext/css>#AOLMsgPart_2_1560bff1-5418-4657-9f9d-bb59c8c5fc14=
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 {margin:0px;} </STYLE>


<div style=3D"FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, tim=
es, serif">

<div>Folks </div>


<div>&nbsp;</div>


<div>I am experiencing a dreadful time getting my COM radios to perform to=
 their full (or even half) potential in my LNC2.&nbsp; I have two Bob Arch=
er's mounted in the tailcone and in the proper orientation with a VSWR of=
 around 1.5 with RG 400 cable.&nbsp; The antennas are fed by two Garmin 43=
0s with&nbsp;a measured output of 8 watts each.&nbsp; The thing is that AT=
C and my flying friends report a consistently weak signal and the same app=
lies on reception on my end.&nbsp;&nbsp;My airplane has the carbon tail an=
d I built the seat bench using carbon on foam (bad idea in hindsight).&nbs=
p; I have tried&nbsp;another type of antenna that&nbsp;is a dipole with a=
 balun mounted in the &nbsp;center of the baggage section in a vertical or=
ientation but with little or no improvement in results.</div>


<div>&nbsp;</div>


<div>&nbsp;</div>


<div>I am beginning to suspect the Lancair supplied Gray epoxy primer whic=
h I understand contains aluminum oxide in the base</div>


<div>&nbsp;</div>


<div>

<div>I am now considering mounting an external antenna but thought I would=
 ask if anybody had experienced similar issues and subsequently corrected=
 them.&nbsp; Any help/advice would be very much appreciated</div>


<div>&nbsp;</div>


<div>Thanks</div>


<div>&nbsp;</div>


<div>Tom</div>


<div>&nbsp;</div>


<div>LNC2 </div>


<div>24 hrs</div>
</div>
</div>
<br>
</div>
<!-- end of AOLMsgPart_2_1560bff1-5418-4657-9f9d-bb59c8c5fc14 --></div>
</font>

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