X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 04 Feb 2009 19:03:52 -0500 Message-ID: X-Original-Return-Path: Received: from web54305.mail.re2.yahoo.com ([206.190.49.115] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with SMTP id 3475216 for lml@lancaironline.net; Tue, 03 Feb 2009 20:14:27 -0500 Received: (qmail 8440 invoked by uid 60001); 4 Feb 2009 01:14:25 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Mailer:References:Date:From:Subject:To:MIME-Version:Content-Type:Message-ID; b=byr9LK3hwyVqCtHk5igDECSJy4RHejOyqZHJZ1BODyCUhqSjCcrFHbaPhsW4LE1KfN3nULlUbMPdsVMSPHKWQ4De7/p5gOinR6uKFSxsN8+cpJqyUW1kbI7sgYGFw5BFSn8+g7mtAsrx+9dtci4nruHJFBzRPKeD4QFfuxELelg=; X-YMail-OSG: yhNoVwkVM1n.ZlxQP6DNWgzoK4VWN7CGi2aUhOhSv7eL0pNkgSyPLLUt3EgYMZaL78KqE9aH.aEohwfoccuOs1bJ8GRAk25ubcNrYSxocTQkJ.gSPid_UnE9Bdgg0nKQeWhM9jC7kynFgmyEM_d44gHDC5XhWJwSXfhJ0iuo0T8DHV0NekWeCgvwFpe6xq0yG5Mg5ULsHdAthFLcxkkAP6YgsFOt4DStk_yJsxzm Received: from [12.155.58.181] by web54305.mail.re2.yahoo.com via HTTP; Tue, 03 Feb 2009 17:14:25 PST X-Mailer: YahooMailRC/1155.45 YahooMailWebService/0.7.260.1 References: X-Original-Date: Tue, 3 Feb 2009 17:14:25 -0800 (PST) From: Matt losangeles Subject: Re: [LML] Which Antenna? X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-549282462-1233710065=:5496" X-Original-Message-ID: <549210.5496.qm@web54305.mail.re2.yahoo.com> --0-549282462-1233710065=:5496 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable When I got my 360 it had problems with the comm antenna. I purchased a glas= air strip comm antenna and installed it on a piece of floorboard trim of th= e same length and width. The lightest I could find. I then took the whole t= hing and pushed it as far up into the tail as I could get it and pushed the= other end as far back and down as it would go. It is not vertical, probabl= y 45 degrees or so. I put a piece of glass on the end of the floorboard tri= m, drilled a hole in it and drilled a hole in a small piece of glass I bond= ed to the bottom of the fusalage where the trim was near. I then took a zip= tie to hold the trim piece in place. While it doesn't work perfect I have = been able to get=A0ATIS 50 miles out from my home airport.=0A=0AI think Gla= sair sells the antenna and triax cable for $80 bucks.=0A=0AMatt=0A=0A=0A=0A= =0A________________________________=0AFrom: GT PHANTOM =0ATo: lml@lancaironline.net=0ASent: Tuesday, February 3, 2009 4:30:59 = PM=0ASubject: [LML] Which Antenna?=0A=0AI've got a Lancair 320, and it seem= s likely that the original comm antenna buried in the vertical stab is beyo= nd usable (either poorly installed originally, or poor ground plane - but i= n any event no way to dig it out and fix it).=0A=0AThere is an old Loran an= tenna in the tail (no longer used) which is virtually identical in dimensio= ns to a Comant CI 122 bent whip.=A0 It doesn't currently have a ground plan= e, but I could stick one in there.=0A=0AI have also heard of some kind of f= lexible antenna that gets glued to the insides of the tailcone.=0A=0AQuesti= ons:=0A=0A- What antenna works best (given that it is too late to embed in = the vertical stab)?=0A- What size ground plane do I use?=0A- Do I ground th= e ground plane and, if so, where?=0A- Do I allow the antenna wire shield gr= ound to electrically connect to the ground plane, or should they be insulat= ed? (I can imagine grounding the ground plane to the battery in back, havin= g it contact the antenna shield which grounds to the bus in front, and havi= ng that situation cause a loop which might have adverse consequences)=0A- H= ow critical is it to use the newest kind of coax?=A0 The old coax is embedd= ed down the side of the plane away from all signal wires, and if I replaced= it I'd have to run the new one up the center with a lot of other wires...= =0A=0AThanks all!=0A=0A________________________________=0AHotmail=AE goes w= here you go. On a PC, on the Web, on your phone. See how. =0A=0A=0A --0-549282462-1233710065=:5496 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
When I got my 360 it had problems with the comm antenn= a. I purchased a glasair strip comm antenna and installed it on a piece of = floorboard trim of the same length and width. The lightest I could find. I = then took the whole thing and pushed it as far up into the tail as I could = get it and pushed the other end as far back and down as it would go. It is = not vertical, probably 45 degrees or so. I put a piece of glass on the end = of the floorboard trim, drilled a hole in it and drilled a hole in a small = piece of glass I bonded to the bottom of the fusalage where the trim was ne= ar. I then took a zip tie to hold the trim piece in place. While it doesn't= work perfect I have been able to get ATIS 50 miles out from my home a= irport.
=0A
 
=0A
I think Glasair sells the antenna = and triax cable for $80 bucks.
=0A
 
=0A
Matt
=0A

=0A
=0A
=0AFrom: GT PHANTOM &l= t;gt_phantom@hotmail.com>
To: lml@lancaironline.net
Sent= : Tuesday, February 3, 2009 4:30:59 PM
Subject: [LML] Which Antenna?

=0A=0A.hmmessage P=0A{=0Amargin:0px;padding:0px;}=0Abody.hmmessage=0A{=0A= font-size:10pt;font-family:Verdana;}=0A=0AI've got a Lancair 320, a= nd it seems likely that the original comm antenna buried in the vertical st= ab is beyond usable (either poorly installed originally, or poor ground pla= ne - but in any event no way to dig it out and fix it).

There is an = old Loran antenna in the tail (no longer used) which is virtually identical= in dimensions to a Comant CI 122 bent whip.  It doesn't currently have a ground plane, but I could stick one in= there.

I have also heard of some kind of flexible antenna that gets= glued to the insides of the tailcone.

Questions:

- What ante= nna works best (given that it is too late to embed in the vertical stab)?- What size ground plane do I use?
- Do I ground the ground plane and,= if so, where?
- Do I allow the antenna wire shield ground to electrical= ly connect to the ground plane, or should they be insulated? (I can imagine grounding the ground plane to the battery in bac= k, having it contact the antenna shield which grounds to the bus in front, = and having that situation cause a loop which might have adverse consequence= s)
- How critical is it to use the newest kind of coax?  The old co= ax is embedded down the side of the plane away from all signal wires, and i= f I replaced it I'd have to run the new one up the center with a lot of oth= er wires...

Thanks all!

=0A
=0AHotmail=AE goes where you g= o. On a PC, on the Web, on your phone. See how.
<= br>=0A=0A=0A=0A --0-549282462-1233710065=:5496--