ÿÿÿÿl>
<ÿÿÿÿ>
<tÿÿÿÿ>Aerÿÿÿÿctriÿÿÿÿst Dÿÿÿÿt Saÿÿÿÿ/23/ÿÿÿÿtitlÿÿÿÿbodyÿÿÿÿt="#ÿÿÿÿ00" ÿÿÿÿlor=ÿÿÿÿffffÿÿÿÿink=ÿÿÿÿ00ffÿÿÿÿ/heaÿÿÿÿbr>
ÿÿÿÿter>ÿÿÿÿble ÿÿÿÿh=50ÿÿÿÿrderÿÿÿÿellpÿÿÿÿng=0ÿÿÿÿr>
<ÿÿÿÿcentÿÿÿÿbr>
ÿÿÿÿ<fonÿÿÿÿlor=ÿÿÿÿ0080ÿÿÿÿroElÿÿÿÿic-LÿÿÿÿDigeÿÿÿÿrchiÿÿÿÿfontÿÿÿÿ2><pÿÿÿÿ3>Saÿÿÿÿ/23/ÿÿÿÿh3>
ÿÿÿÿ></tÿÿÿÿtr>
ÿÿÿÿ<cenÿÿÿÿ<br>ÿÿÿÿ>TotÿÿÿÿessaÿÿÿÿPostÿÿÿÿ2</hÿÿÿÿ/td>ÿÿÿÿ>
</ÿÿÿÿe>
<ÿÿÿÿter>ÿÿÿÿockqÿÿÿÿ>
<pÿÿÿÿb>
<ÿÿÿÿME="ÿÿÿÿMESSÿÿÿÿ></aÿÿÿÿday'ÿÿÿÿssagÿÿÿÿdex:ÿÿÿÿ----ÿÿÿÿ----ÿÿÿÿ---
ÿÿÿÿ   1ÿÿÿÿ:34 ÿÿÿÿ <a ÿÿÿÿ="#MÿÿÿÿGE1"ÿÿÿÿnspoÿÿÿÿ andÿÿÿÿB anÿÿÿÿae qÿÿÿÿion.ÿÿÿÿ> (Rÿÿÿÿt Reÿÿÿÿ    ÿÿÿÿ09:4ÿÿÿÿ - <ÿÿÿÿef="ÿÿÿÿSAGEÿÿÿÿe: Tÿÿÿÿpondÿÿÿÿnd Aÿÿÿÿanteÿÿÿÿ queÿÿÿÿn. <ÿÿÿÿ(Theÿÿÿÿfelsÿÿÿÿ 
 
ÿÿÿÿAME=ÿÿÿÿSAGEÿÿÿÿ/a><ÿÿÿÿer><ÿÿÿÿize=ÿÿÿÿr><fÿÿÿÿfaceÿÿÿÿes Nÿÿÿÿomanÿÿÿÿsageÿÿÿÿfontÿÿÿÿ><hrÿÿÿÿe=1>ÿÿÿÿnterÿÿÿÿockqÿÿÿÿ><brÿÿÿÿble ÿÿÿÿer=1ÿÿÿÿlpadÿÿÿÿ=2><ÿÿÿÿtd><ÿÿÿÿe boÿÿÿÿ=0 cÿÿÿÿaddiÿÿÿÿ>
<tÿÿÿÿd><lÿÿÿÿ HREÿÿÿÿTOP_ÿÿÿÿAGE"ÿÿÿÿnt sÿÿÿÿ-1 fÿÿÿÿTimeÿÿÿÿw Roÿÿÿÿ				ÿÿÿÿINDEÿÿÿÿont>ÿÿÿÿ</a>ÿÿÿÿ><tdÿÿÿÿnt sÿÿÿÿ-1 fÿÿÿÿTimeÿÿÿÿw Roÿÿÿÿ<b> ÿÿÿÿ to ÿÿÿÿ INDÿÿÿÿfontÿÿÿÿ></aÿÿÿÿd></ÿÿÿÿ<tr>ÿÿÿÿ<li>ÿÿÿÿREF=ÿÿÿÿSSAGÿÿÿÿ<fonÿÿÿÿze=-ÿÿÿÿce=Tÿÿÿÿ Newÿÿÿÿan>	ÿÿÿÿ<b>Nÿÿÿÿ/fonÿÿÿÿb></ÿÿÿÿtd><ÿÿÿÿfontÿÿÿÿe=-1ÿÿÿÿe=TiÿÿÿÿNew ÿÿÿÿn><bÿÿÿÿip tÿÿÿÿXT Mÿÿÿÿge</ÿÿÿÿ></bÿÿÿÿ></tÿÿÿÿtr>
ÿÿÿÿ<td>ÿÿÿÿ<a hÿÿÿÿ"maiÿÿÿÿaeroÿÿÿÿtricÿÿÿÿt@maÿÿÿÿics.ÿÿÿÿsubjÿÿÿÿRe: ÿÿÿÿElecÿÿÿÿ-Lisÿÿÿÿransÿÿÿÿer aÿÿÿÿDSB ÿÿÿÿnnaeÿÿÿÿstioÿÿÿÿ><foÿÿÿÿize=ÿÿÿÿace=ÿÿÿÿs Neÿÿÿÿman>ÿÿÿÿLISTÿÿÿÿnt><ÿÿÿÿ/a><ÿÿÿÿ<td>ÿÿÿÿt siÿÿÿÿ1 faÿÿÿÿimesÿÿÿÿ Romÿÿÿÿb> Rÿÿÿÿ to ÿÿÿÿ Regÿÿÿÿng tÿÿÿÿMessÿÿÿÿ/fonÿÿÿÿb></ÿÿÿÿtd><ÿÿÿÿ
<trÿÿÿÿ><liÿÿÿÿhrefÿÿÿÿiltoÿÿÿÿert ÿÿÿÿ %3Cÿÿÿÿrtr2ÿÿÿÿtt.nÿÿÿÿE?suÿÿÿÿt=ReÿÿÿÿroElÿÿÿÿic-Lÿÿÿÿ Traÿÿÿÿnderÿÿÿÿ ADSÿÿÿÿtennÿÿÿÿuestÿÿÿÿ "><ÿÿÿÿ sizÿÿÿÿ facÿÿÿÿmes ÿÿÿÿRomaÿÿÿÿ<b>SÿÿÿÿR</fÿÿÿÿ</b>ÿÿÿÿ</tdÿÿÿÿ><foÿÿÿÿize=ÿÿÿÿace=ÿÿÿÿs Neÿÿÿÿman>ÿÿÿÿReplÿÿÿÿ SENÿÿÿÿRegaÿÿÿÿg thÿÿÿÿessaÿÿÿÿfontÿÿÿÿ></aÿÿÿÿd></ÿÿÿÿ</taÿÿÿÿ</tdÿÿÿÿr></ÿÿÿÿe>
 ÿÿÿÿ 
  ÿÿÿÿ
<taÿÿÿÿbordÿÿÿÿ0" cÿÿÿÿaddiÿÿÿÿ0" cÿÿÿÿpaciÿÿÿÿ0" wÿÿÿÿ="10ÿÿÿÿ<tr>ÿÿÿÿwidtÿÿÿÿ5%" ÿÿÿÿn="lÿÿÿÿ><b>ÿÿÿÿt siÿÿÿÿ facÿÿÿÿimesÿÿÿÿ romÿÿÿÿtimeÿÿÿÿolorÿÿÿÿ0000ÿÿÿÿime:ÿÿÿÿd><tÿÿÿÿdth=ÿÿÿÿ" alÿÿÿÿ"lefÿÿÿÿ/fonÿÿÿÿont ÿÿÿÿ=3 fÿÿÿÿ"timÿÿÿÿew rÿÿÿÿ, tiÿÿÿÿ colÿÿÿÿ#8f0ÿÿÿÿ><b>ÿÿÿÿ8:34ÿÿÿÿPM PÿÿÿÿS</iÿÿÿÿ></fÿÿÿÿ</tdÿÿÿÿr></ÿÿÿÿe><tÿÿÿÿ borÿÿÿÿ"0" ÿÿÿÿpaddÿÿÿÿ"0" ÿÿÿÿspacÿÿÿÿ"0" ÿÿÿÿh="1ÿÿÿÿ><trÿÿÿÿ widÿÿÿÿ15%"ÿÿÿÿgn="ÿÿÿÿ"><bÿÿÿÿnt sÿÿÿÿ3 faÿÿÿÿtimeÿÿÿÿw roÿÿÿÿ timÿÿÿÿcoloÿÿÿÿ0000ÿÿÿÿFromÿÿÿÿtd><ÿÿÿÿidthÿÿÿÿ%" aÿÿÿÿ="leÿÿÿÿ</foÿÿÿÿfontÿÿÿÿe=3 ÿÿÿÿ="tiÿÿÿÿnew ÿÿÿÿn, tÿÿÿÿ" coÿÿÿÿ"#00ÿÿÿÿ"><bÿÿÿÿRobeÿÿÿÿeed ÿÿÿÿ<a hÿÿÿÿ"maiÿÿÿÿrobeÿÿÿÿ37@aÿÿÿÿet">ÿÿÿÿrtr2ÿÿÿÿtt.nÿÿÿÿa>&gÿÿÿÿi></ÿÿÿÿfontÿÿÿÿd></ÿÿÿÿ/tabÿÿÿÿtablÿÿÿÿrderÿÿÿÿ celÿÿÿÿdingÿÿÿÿ celÿÿÿÿcingÿÿÿÿ widÿÿÿÿ100%ÿÿÿÿr><tÿÿÿÿdth=ÿÿÿÿ" alÿÿÿÿ"lefÿÿÿÿfontÿÿÿÿe=3 ÿÿÿÿ="tiÿÿÿÿnew ÿÿÿÿn, tÿÿÿÿ" coÿÿÿÿ"#00ÿÿÿÿ"><bÿÿÿÿjectÿÿÿÿb></ÿÿÿÿtd wÿÿÿÿ="85ÿÿÿÿlignÿÿÿÿft">ÿÿÿÿt siÿÿÿÿ facÿÿÿÿimesÿÿÿÿ romÿÿÿÿtimeÿÿÿÿolorÿÿÿÿ0700ÿÿÿÿi><bÿÿÿÿTranÿÿÿÿder ÿÿÿÿADSBÿÿÿÿennaÿÿÿÿestiÿÿÿÿ</u>ÿÿÿÿ</i>ÿÿÿÿnt><ÿÿÿÿ</trÿÿÿÿableÿÿÿÿ   
ÿÿÿÿ  
 ÿÿÿÿ I aÿÿÿÿ theÿÿÿÿcessÿÿÿÿlocaÿÿÿÿ besÿÿÿÿace ÿÿÿÿnstaÿÿÿÿhe tÿÿÿÿpondÿÿÿÿnd Aÿÿÿÿ    ÿÿÿÿtennÿÿÿÿI haÿÿÿÿeen ÿÿÿÿdingÿÿÿÿ wayÿÿÿÿ lonÿÿÿÿd asÿÿÿÿesulÿÿÿÿme tÿÿÿÿs plÿÿÿÿd
  ÿÿÿÿyearÿÿÿÿo arÿÿÿÿ lonÿÿÿÿviabÿÿÿÿI inÿÿÿÿlly ÿÿÿÿalleÿÿÿÿo Arÿÿÿÿ NAVÿÿÿÿennaÿÿÿÿ    ÿÿÿÿ in ÿÿÿÿ winÿÿÿÿow Iÿÿÿÿ litÿÿÿÿor nÿÿÿÿed fÿÿÿÿitheÿÿÿÿtennÿÿÿÿnd hÿÿÿÿ    ÿÿÿÿ plaÿÿÿÿo inÿÿÿÿl otÿÿÿÿthanÿÿÿÿ. 
 ÿÿÿÿ 
  ÿÿÿÿMy qÿÿÿÿion ÿÿÿÿatheÿÿÿÿcoulÿÿÿÿsconÿÿÿÿ theÿÿÿÿx toÿÿÿÿse aÿÿÿÿnae,ÿÿÿÿtallÿÿÿÿ
   ÿÿÿÿransÿÿÿÿer aÿÿÿÿDSB ÿÿÿÿhe wÿÿÿÿbottÿÿÿÿnd uÿÿÿÿhe eÿÿÿÿing ÿÿÿÿ?  Iÿÿÿÿt reÿÿÿÿ
   ÿÿÿÿhe Nÿÿÿÿntenÿÿÿÿsincÿÿÿÿbondÿÿÿÿhem ÿÿÿÿhe uÿÿÿÿsideÿÿÿÿthe ÿÿÿÿ topÿÿÿÿll
 ÿÿÿÿ theÿÿÿÿ antÿÿÿÿe inÿÿÿÿere ÿÿÿÿ theÿÿÿÿnspoÿÿÿÿ or ÿÿÿÿ?  Aÿÿÿÿtherÿÿÿÿues
ÿÿÿÿ  toÿÿÿÿsideÿÿÿÿIf Iÿÿÿÿer dÿÿÿÿe toÿÿÿÿtallÿÿÿÿAV sÿÿÿÿm wiÿÿÿÿt inÿÿÿÿere ÿÿÿÿ
   ÿÿÿÿitheÿÿÿÿit?
ÿÿÿÿ  
 ÿÿÿÿ Bobÿÿÿÿd
  ÿÿÿÿ
   ÿÿÿÿ</blÿÿÿÿuoteÿÿÿÿNAMEÿÿÿÿSSAGÿÿÿÿ</a>ÿÿÿÿter>ÿÿÿÿsizeÿÿÿÿbr><ÿÿÿÿ facÿÿÿÿmes ÿÿÿÿRomaÿÿÿÿssagÿÿÿÿ/fonÿÿÿÿr><hÿÿÿÿze=1ÿÿÿÿenteÿÿÿÿlockÿÿÿÿe><bÿÿÿÿableÿÿÿÿder=ÿÿÿÿllpaÿÿÿÿg=2>ÿÿÿÿ<td>ÿÿÿÿle bÿÿÿÿr=0 ÿÿÿÿpaddÿÿÿÿ0>
<ÿÿÿÿtd><ÿÿÿÿa HREF="#TOP_MESSAGE"><font size=-1 face=Times New Roman>					<b>INDEX</font></b></a></td><td><font size=-1 face=Times New Roman><b> Back to Main INDEX</font></b></a></td></tr>
<tr><td><li><a HREF="#MESSAGE1"><font size=-1 face=Times New Roman>				<b>PREVIOUS</font></b></a></td><td><font size=-1 face=Times New Roman><b> Skip to PREVIOUS Message</font></b></a></td></tr>
<tr><td><li><a HREF="#MESSAGE3"><font size=-1 face=Times New Roman>					<b>NEXT</font></b></a></td><td><font size=-1 face=Times New Roman><b> Skip to NEXT Message</font></b></a></td></tr>
<tr><td><li><a href="mailto:aeroelectric-list@matronics.com?subject=Re: AeroElectric-List: Transponder and ADSB antennae question. "><font size=-1 face=Times New Roman>	<b>LIST</font></b></a></td><td><font size=-1 face=Times New Roman><b> Reply to LIST Regarding this Message</font></b></a></td></tr>
<tr><td><li><a href="mailto:%22The Kuffels%22 %3Ckuffel@cyberport.net%3E?subject=Re: AeroElectric-List: Transponder and ADSB antennae question. "><font size=-1 face=Times New Roman>		<b>SENDER</font></b></a></td><td><font size=-1 face=Times New Roman><b> Reply to SENDER Regarding this Message</font></b></a></td></tr>
</table></td></tr></table>
      
      
<table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td width="15%" align="left"><b><font size=3 face="times new roman, times" color="#000000">Time: </td><td width="85%" align="left"></font><font size=3 face="times new roman, times" color="#8f0000"><b><i>09:48:09 PM PST US</i></b></font></td></tr></table><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td width="15%" align="left"><b><font size=3 face="times new roman, times" color="#000000">From: </td><td width="85%" align="left"></font><font size=3 face="times new roman, times" color="#007000"><b><i>"The Kuffels" &lt;<a href="mailto:kuffel@cyberport.net">kuffel@cyberport.net</a>&gt;</i></b></font></td></tr></table><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td width="15%" align="left"><font size=3 face="times new roman, times" color="#000000"><b>Subject: </b></td><td width="85%" align="left"><font size=3 face="times new roman, times" color="#707000"><i><b><u>Re: Transponder and ADSB antennae question. </u></b></i></font></td></tr></table>      
      
      
      Robert,
      
      &lt;&lt;  disconnect the coax to those antennae, install the transponder and ADSB 
      in the wing bottom and use the existing coax?  I cant remove the NAV 
      antennae since I bonded them to the underside of the wing top. Will the old 
      antennae interfere with the transponder or ADSB?  Any other issues to 
      consider  &gt;&gt;
      
      First a confusion.  Vanilla ADSB units have only one combined 
      ADSB/transponder antenna.  Why do you need two?
      
      Second confusion.  Archer antennas need a metal wing to act as a 
      counterpoise.  How are the Archer antennas bonded inboard of the wing tip. 
      Either you have a non-metal wing with no counterpoise or you have a shielded 
      antenna.  Obviously there is something here I don't understand.
      
      Potential problems:
      
      By the wing bottom I assume you mean the bottom at the center of the 
      wingspan.  Besides the extra complexity of a remote ADSB unit vs. a panel 
      mount you are faced with the manufacturers limit on cable length, usually 
      about 10 feet, because of cable signal attenuation.
      
      Most of ADSB is still ground based.  Thus the ADSB antenna needs a 360 
      degree view of the ground to function fully.  At the wing tip much of the 
      ground (even half) is blocked.  This will result in spotty performance and 
      whines from ATC each time your transponder signal drops out.
      
      ADSB/transponder antennas are ground plane type.  A short spike is mounted 
      on an 8 inch or so circle/octagon/etc.  Mounting this antenna with the spike 
      horizontal and facing outward would shield the antenna from any conducting 
      metal inboard.  But this also guarantees maximum signal blockage.  Mounting 
      the ground plane on the bottom of the wingtip with the spike protruding 
      downward would work better.
      
      If it were me, I'd mount the antenna on the bottom of the fuselage.  On my 
      Sportsman, it is mounted to the underside of the fuselage cage with the 
      spike protruding through the fiberglass fuselage shell about 1 inch.
      
      Tom Kuffel
      
      
      ---
      This email has been checked for viruses by Avast antivirus software.
      https://www.avast.com/antivirus
      
      
</blockquote>
<hr size=1>
<br><br>
<center>
<table width=575 border=0 cellpading=0><tr><td>
<hr size="1">
<font size=4 color=#aa0000><i><b><center>Other Matronics Email List Services</font></center></i></b>
<hr size="1">
<center>
<table cellpadding=0 border=0>

<tr><td nowrap><li><b><font size=-1>Post A New Message</font></b></td><td>&nbsp&nbsp</td><td><a href="mailto:aeroelectric-list@matronics.com"><b><i><font size=-1>aeroelectric-list@matronics.com</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>UN/SUBSCRIBE</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/subscription"><b><i><font size=-1>http://www.matronics.com/subscription</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>List FAQ</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/FAQ/AeroElectric-List.htm"><b><i><font size=-1>http://www.matronics.com/FAQ/AeroElectric-List.htm</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Web Forum Interface To Lists</font></b></td><td>&nbsp&nbsp</td><td><a href="http://forums.matronics.com"><b><i><font size=-1>http://forums.matronics.com</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Matronics List Wiki</font></b></td><td>&nbsp&nbsp</td><td><a href="http://wiki.matronics.com"><b><i><font size=-1>http://wiki.matronics.com</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>7-Day List Browse</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/browse/aeroelectric-list"><b><i><font size=-1>http://www.matronics.com/browse/aeroelectric-list</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Browse AeroElectric-List Digests</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/digest/aeroelectric-list"><b><i><font size=-1>http://www.matronics.com/digest/aeroelectric-list</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Browse Other Lists</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/browse"><b><i><font size=-1>http://www.matronics.com/browse</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Live Online Chat!</font></b></td><td nowrap>&nbsp&nbsp</td><td nowrap><a href="http://www.matronics.com/chat"><b><i><font size=-1>http://www.matronics.com/chat</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Archive Downloading</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/archives"><b><i><font size=-1>http://www.matronics.com/archives</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Photo Share</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/photoshare"><b><i><font size=-1>http://www.matronics.com/photoshare</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Other Email Lists</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/emaillists"><b><i><font size=-1>http://www.matronics.com/emaillists</font></i></b></a></td></tr>
<tr><td nowrap><li><b><font size=-1>Contributions</font></b></td><td>&nbsp&nbsp</td><td><a href="http://www.matronics.com/contribution"><b><i><font size=-1>http://www.matronics.com/contribution</font></i></b></a></td></tr>


</table>
</center>

<hr size="1">
<blockquote>
<font size=-1>
<p align=justify>
<b>These Email List Services are sponsored solely by <a href="http://www.matronics.com">Matronics</a> and through the generous Contributions of its members.
</font>
</blockquote>
<center>
<b><font size=3 color="#006000"><base TARGET="_blank">
-- Please support this service by making your <a href="http://www.matronics.com/contribution">Contribution</a> today! --
</font><base TARGET="_self">
<p>
<hr size="1">
</td></tr>
</table>

</b>
</pre>
</blockquote>
</center>
</html>