X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 23 Feb 2011 09:09:33 -0500 Message-ID: X-Original-Return-Path: Received: from nm15-vm0.bullet.mail.ne1.yahoo.com ([98.138.91.70] verified) by logan.com (CommuniGate Pro SMTP 5.4c2o) with SMTP id 4878222 for lml@lancaironline.net; Mon, 21 Feb 2011 20:59:47 -0500 Received-SPF: none receiver=logan.com; client-ip=98.138.91.70; envelope-from=n20087@yahoo.com Received: from [98.138.90.55] by nm15.bullet.mail.ne1.yahoo.com with NNFMP; 22 Feb 2011 01:59:10 -0000 Received: from [98.138.89.194] by tm8.bullet.mail.ne1.yahoo.com with NNFMP; 22 Feb 2011 01:59:10 -0000 Received: from [127.0.0.1] by omp1052.mail.ne1.yahoo.com with NNFMP; 22 Feb 2011 01:59:10 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 261596.1025.bm@omp1052.mail.ne1.yahoo.com Received: (qmail 77180 invoked by uid 60001); 22 Feb 2011 01:59:09 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=lxolsR4QAYD6dqp1hUXbR1ITMvaD4ShxGVWw8FUfrQTCCVPGuTf5iIhPTOzkF0JyjFdc6mESy6XOaRMqYOF9xPko1XdJn0k5YjM632jV3+KNO6XCmzSYlvdLeazxJ8tcayc4VV+J+SS8OGaeoyTxnD3FKBr+g02P0jD5PrhqjsE=; X-Original-Message-ID: <898376.77166.qm@web112708.mail.gq1.yahoo.com> X-YMail-OSG: eErRM1sVM1lsvaV.NzGSlUoa6IeNVY.PMPERgbSeQ8hOn.c t0vfhXUu7zCZNrI4poEcPLvvzbUZWcGosJSK5lcaIJKQOMfIxlBjQnCOx3X6 hv1D58XrJrXQmIW8l_BG0oyNzypTynxNs7utyJTpXq1BzBi0LbEqmWqXlef3 IEc6MITrlTijV76cI8vQWPqKFTB.alHr1fiUgiJErUTWL36JLal4R78WHxp5 6a6N_OBVw8q.Uk4f0wSA8NniQlhYIKxBa0iBgqr5sQFORb49NH._V8xg0R2w FDh__J9zDDqtfydoQ8uqSt_Hy52GaGFfvOYSpCoDy.fMWLrd2X7vz8HAsrOE v0CfFihtgI27E8PiLXAhkUZa.J2nf4nvoF9GWQfVZeRvXJkJBZA-- Received: from [98.185.51.168] by web112708.mail.gq1.yahoo.com via HTTP; Mon, 21 Feb 2011 17:59:09 PST X-Mailer: YahooMailRC/555 YahooMailWebService/0.8.109.292656 X-Original-Date: Mon, 21 Feb 2011 17:59:09 -0800 (PST) From: TOM GARDINER Subject: Antenna type and placement X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1022719606-1298339949=:77166" --0-1022719606-1298339949=:77166 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Folks =0A=0AI am experiencing a dreadful time getting my COM radios to perf= orm to their full =0A(or even half) potential in my LNC2.=A0 I have two Bob= Archer's mounted in the =0Atailcone and in the proper orientation with a V= SWR of around 1.5 with RG 400 =0Acable.=A0 The antennas are fed by two Garm= in 430s with=A0a measured output of 8 =0Awatts each.=A0 The thing is that A= TC and my flying friends report a consistently =0Aweak signal and the same = applies on reception on my end.=A0=A0My airplane has the =0Acarbon tail and= I built the seat bench using carbon on foam (bad idea in =0Ahindsight).=A0= I have tried=A0another type of antenna that=A0is a dipole with a balun =0A= mounted in the =A0center of the baggage section in a vertical orientation b= ut with =0Alittle or no improvement in results.=0A=0A=0AI am beginning to s= uspect the Lancair supplied Gray epoxy primer which I =0Aunderstand contain= s aluminum oxide in the base=0A=0AI am now considering mounting an external= antenna but thought I would ask if =0Aanybody had experienced similar issu= es and subsequently corrected them.=A0 Any =0Ahelp/advice would be very muc= h appreciated=0A=0AThanks=0A=0ATom=0A=0ALNC2 =0A24 hrs=0A=0A=0A --0-1022719606-1298339949=:77166 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable

Folks

=0A

I am experienc= ing a dreadful time getting my COM radios to perform to their full (or even= half) potential in my LNC2. I have two Bob Archer's mounted in the t= ailcone 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 measured = output of 8 watts each. The thing is that ATC and my flying friends r= eport 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 us= ing carbon on foam (bad idea in hindsight). I have tried another= type of antenna that is a dipole with a balun mounted in the ce= nter of the baggage section in a vertical orientation but with little or no= improvement in results.

=0A

=0AI am beginning to suspect the Lancair supplied Gray epoxy primer which I= understand contains aluminum oxide in the base

=0A

= =0A

=0A

I am now considering mounting an external antenna but thoug= ht I would ask if anybody had experienced similar issues and subsequently c= orrected them. Any help/advice would be very much appreciated

= =0A

=0A

Thanks

=0A

Tom=0A

=0A

LNC2

=0A

24 hrs

=0A=0A --0-1022719606-1298339949=:77166--