X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 03 Jan 2012 11:38:18 -0500 Message-ID: X-Original-Return-Path: Received: from imr-ma04.mx.aol.com ([64.12.206.42] verified) by logan.com (CommuniGate Pro SMTP 5.4.3) with ESMTP id 5334477 for lml@lancaironline.net; Mon, 02 Jan 2012 13:16:10 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.206.42; envelope-from=Sky2high@aol.com Received: from mtaomg-db03.r1000.mx.aol.com (mtaomg-db03.r1000.mx.aol.com [172.29.51.201]) by imr-ma04.mx.aol.com (8.14.1/8.14.1) with ESMTP id q02IFWZj002588 for ; Mon, 2 Jan 2012 13:15:32 -0500 Received: from core-mta002a.r1000.mail.aol.com (core-mta002.r1000.mail.aol.com [172.29.234.133]) by mtaomg-db03.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id E87E4E00008E for ; Mon, 2 Jan 2012 13:15:31 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <4ea9e.5061cc69.3c334e43@aol.com> X-Original-Date: Mon, 2 Jan 2012 13:15:31 -0500 (EST) Subject: Re: [LML] Re: Legacy Com Antenna X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_4ea9e.5061cc69.3c334e43_boundary" X-Mailer: AOL 9.7 sub 19 X-Originating-IP: [24.1.9.48] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:423778944:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d33c94f01f4435d90 --part1_4ea9e.5061cc69.3c334e43_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Geeeze Loueeeze! When I bought a Comant switch in the early nineties it was only $300. Now I'll have to raise the hull insurance on my airplane. Grayhawk In a message dated 1/2/2012 10:17:21 A.M. Central Standard Time, dave.saylor.aircrafters@gmail.com writes: Dean, It is possible to use a single comm antenna but it takes something like this: _http://www.aircraftspruce.com/catalog/avpages/comantswtich601.php_ (http://www.aircraftspruce.com/catalog/avpages/comantswtich601.php) It's not a very common installation and it's a lot more expensive than a second antenna! My layman's understanding is that transmissions from one radio become over-powered receptions to the other radio. So most commonly, two comms each use a dedicated antenna. On a Legacy, the second antenna can go aft of the primary. It needs to be centered a minimum of two antenna lengths from the other comm antenna. That makes it a challenge to use a straight antenna as it may hit the ground before the tail tie-down. We've put an antenna in that area, and we may have ended up using a bent whip like a Comant CI-122. Nav antennas can be split without worry. Dave Saylor AirCrafters 140 Aviation Way Watsonville, CA 95076 831-722-9141 Shop 831-750-0284 Cell On Fri, Dec 30, 2011 at 9:07 AM, Dean Whiting <_dean.whiting@gmail.com_ (mailto:dean.whiting@gmail.com) > wrote: I was looking for some advice about communication antennas. The legacy is setup to have one com antenna. We want a capable IFR airplane and I am hesitant to have one antenna with a diplexer (or is it duplexer, I've seen it both ways) as a possible single point of failure. Is this the method that most people are using? If you mounted a 2nd com antenna, where did you place it? I searched the archives and found someone else who asked the same question but I couldn't find the answer. Any other input or advice on the subject would be appreciated. Dean Whiting -- For archives and unsub _http://mail.lancaironline.net:81/lists/lml/List.html_ (http://mail.lancaironline.net:81/lists/lml/List.html) --part1_4ea9e.5061cc69.3c334e43_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Geeeze Loueeeze!

When I bought a Comant switch in the early nineties it was only= =20 $300. Now I'll have to raise the hull insurance on my airplane.

Grayhawk

In a message dated 1/2/2012 10:17:21 A.M. Central Standard Time,=20 dave.saylor.aircrafters@gmail.com writes:

= Dean,

It is possible to use a single comm antenna but= it=20 takes something like this:

http://www.aircraftspruce.com/catalog/avpages/comantswtich601.php
=
It's=20 not a very common installation and it's a lot more expensive than a secon= d=20 antenna!

My layman's understanding is that transmissions from one = radio=20 become over-powered receptions to the other radio. So most commonly= , two=20 comms each use a dedicated antenna.

On a Legacy, the second antenn= a can=20 go aft of the primary. It needs to be centered a minimum of two ant= enna=20 lengths from the other comm antenna. That makes it a challenge to u= se a=20 straight antenna as it may hit the ground before the tail tie-down. = =20 We've put an antenna in that area, and we may have ended up using a bent = whip=20 like a Comant CI-122.

Nav antennas can be split without worry.
= Dave Saylor
AirCrafters
140 Aviation Way
Watsonville= , CA=20 95076
831-722-9141 Shop
831-750-0284 Cell

On Fri, Dec 30, 2011 at 9:07 AM, Dean Whiting <dean.whiting@gmail.com>=20 wrote:
I was looking for some advice about communication=20 antennas. The legacy is setup to have one com antenna. We w= ant a=20 capable IFR airplane and I am hesitant to have one antenna with a diple= xer=20 (or is it duplexer, I've seen it both ways) as a possible single point = of=20 failure. Is this the method that most people are using? If = you=20 mounted a 2nd com antenna, where did you place it? I searched the= =20 archives and found someone else who asked the same question but I could= n't=20 find the answer. Any other input or advice on the subject would b= e=20 appreciated.

Dean=20 Whiting

--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.= html

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