Delivered-To: daveyxm@virginmedia.com Received: by 10.50.93.2 with SMTP id cq2csp90852igb; Wed, 11 Sep 2013 10:48:08 -0700 (PDT) X-Received: by 10.180.9.66 with SMTP id x2mr2335299wia.35.1378921688043; Wed, 11 Sep 2013 10:48:08 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com. [195.171.43.25]) by mx.google.com with ESMTP id op2si11223609wjc.59.1969.12.31.16.00.00; Wed, 11 Sep 2013 10:48:07 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VJo9h-0005bo-SU for rs_out_1@blacksheep.org; Wed, 11 Sep 2013 18:24:41 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VJo9h-0005bf-Fb for rsgb_lf_group@blacksheep.org; Wed, 11 Sep 2013 18:24:41 +0100 Received: from smtpout3.wanadoo.co.uk ([80.12.242.59] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1VJo9f-0002Cn-Im for rsgb_lf_group@blacksheep.org; Wed, 11 Sep 2013 18:24:40 +0100 Received: from AGB ([2.31.70.53]) by mwinf5d42 with ME id PtQd1m00418xuR603tQdce; Wed, 11 Sep 2013 19:24:38 +0200 Message-ID: <5B5B68A7001A4FC691C9C10CCAE6F4D0@AGB> From: "Graham" To: References: <522FF986.5010103@virginbroadband.com.au> <52309CF9.3000003@otenet.gr> In-Reply-To: <52309CF9.3000003@otenet.gr> Date: Wed, 11 Sep 2013 18:24:37 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: that dose something funny with a low frequency modulation to give a ' rotating ' field , where the phase gives the bearing ? G, From: "Alex Deligiannis" Sent: Wednesday, September 11, 2013 5:40 PM To: Subject: Re: LF: Radio signals [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [80.12.242.59 listed in list.dnswl.org] X-Scan-Signature: 8556389a5ea14fbbf9b9d801ab70c592 Subject: Re: LF: Radio signals Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Status: O X-Status: X-Keywords: X-UID: 2711 that dose something funny with a low frequency modulation to give a ' rotating ' field , where the phase gives the bearing ? G, -------------------------------------------------- From: "Alex Deligiannis" Sent: Wednesday, September 11, 2013 5:40 PM To: Subject: Re: LF: Radio signals > ...will be the vector sum of the two carriers / time and for a > spectrum , then a reference is needed to recover the modulation , CIO , > to give freq/amp/time , or a complex w/f / time for a detector > alone > That's exactly how VOR works >> >> G? >> >> >> -------------------------------------------------- >> From: "edgar" >> Sent: Wednesday, September 11, 2013 6:03 AM >> To: <600m@yahoogroups.com>; >> Subject: LF: Radio signals >> >>> Hi Group, >>> >>> What is the mechanism for the way radio signals combine in the air? >>> >>> For example >>> >>> 1.There are two transmitters each sending out the same fixed frequency >>> sine wave signal. >>> >>> 2. There are no other signals in space, and no background noise. >>> >>> 3. There are no propagation factors modifying the signals. >>> >>> e.g. buildings, ionosphere layers. >>> >>> 4. Both transmitters are the same distance from the receiver. >>> >>> 5. Both signals have the same polarisation. >>> >>> How have the signals combined when they reach a receiving antenna at a >>> reasonable distance from both transmitters? >>> >>> It the process addition, multiplication or some other process? >>> >>> Regards, Edgar >>> Moonah, Tasmania. >>> >>> >>> >>> >>> >>> >> >> > >