X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 09 May 2014 08:00:53 -0400 Message-ID: X-Original-Return-Path: Received: from rc5-smtp.comporium.net ([208.104.2.19] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 6865155 for lml@lancaironline.net; Fri, 09 May 2014 06:30:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=208.104.2.19; envelope-from=snopercod@comporium.net Received: from bar01.comporium.net ([208.104.244.60]) by rc5-smtp.comporium.net ({548c1f54-a96b-4a18-a171-d2818e6ccf4d}) via TCP (outbound) with ESMTP id 20140509103021659 for ; Fri, 09 May 2014 10:30:21 +0000 X-RC-FROM: X-RC-RCPT: X-ASG-Debug-ID: 1399631421-07cf4e4cefcb35b0001-yPXFKn Received: from rg25.comporium.net (rg24.comporium.net [208.104.2.16]) by barracuda. with ESMTP id 8gAgDlK03CpbXZmx for ; Fri, 09 May 2014 06:30:21 -0400 (EDT) X-Barracuda-Envelope-From: snopercod@comporium.net X-Barracuda-Apparent-Source-IP: 208.104.2.16 Received: from 33.225.235.68.dsl.brvdnc.dynamic.citcom.Net (EHLO _127.0.0.1_) ([68.235.225.33]) by rg24.comporium.net (MOS 4.3.4-GA FastPath queued) with ESMTP id RJG72770 (AUTH snopercod); Fri, 09 May 2014 06:30:20 -0400 (EDT) X-Original-Message-ID: <536CAE34.6040008@comporium.net> X-Original-Date: Fri, 09 May 2014 06:30:12 -0400 From: John Cooper User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Re: [LML] Re: Antennas for 406 MHz ELTs References: X-ASG-Orig-Subj: Re: [LML] Re: Antennas for 406 MHz ELTs In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: rg24.comporium.net[208.104.2.16] X-Barracuda-Start-Time: 1399631421 X-Barracuda-URL: http://208.104.2.35:8000/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 0 X-Virus-Scanned: by bsmtpd at comporium.net X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.5666 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-MAG-OUTBOUND: comporium.redcondor.net@208.104.244.48/28 On 5/9/2014 6:00 AM, Lancair Mailing List wrote: > so for a carbon air frame, seems like your options are to either put > it in the tail or stick it out the top of the fuselage? That would be true for L-IV drivers, but my aircraft is an L-235 with a fiberglass airframe so I can put the antenna on the inside. I have a friend with the Sheriff's Rescue squad and he told me the 121.5 MHz signal is no longer used by anybody to alert them of a downed aircraft; Rather, the 406 MHz signal is picked up by the SaRSAT and then the closest rescue squad in the area is alerted by the Rescue Coordination Center. That said, the rescue squad on the ground DOES use the 121.5 MHz signal to home in on the wreckage. They carry radio direction finders with a directional Yagi antenna that they can sweep around to point in the direction of the strongest signal.