Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df05.r1000.mx.aol.com (Internet Inbound) with ESMTP id F04E338000081; Tue, 31 Jan 2012 06:39:32 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RsC2s-00082U-P1 for rs_out_1@blacksheep.org; Tue, 31 Jan 2012 11:38:42 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RsC2s-00082L-CJ for rsgb_lf_group@blacksheep.org; Tue, 31 Jan 2012 11:38:42 +0000 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RsC2q-0006r0-1D for rsgb_lf_group@blacksheep.org; Tue, 31 Jan 2012 11:38:42 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvgCAG/SJ09Olmss/2dsb2JhbAAMN6w3gSuDdAEBAQEDeBELBAUPCRYPCQMCAQIBRRMIAQHAdYkgghwGAQgNDiSCchkEAwwDFAUECFBMgxwEjVuaGQ X-IronPort-AV: E=Sophos;i="4.71,595,1320624000"; d="scan'208,217";a="22753838" Received: from host-78-150-107-44.as13285.net (HELO [192.168.2.5]) ([78.150.107.44]) by out1.ip07ir2.opaltelecom.net with ESMTP; 31 Jan 2012 11:38:33 +0000 Message-ID: <4F27D2B8.6080403@talktalk.net> Date: Tue, 31 Jan 2012 11:38:32 +0000 From: qrss User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:9.0) Gecko/20111222 Thunderbird/9.0.1 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <001501cce008$8331a210$0401a8c0@xphd97xgq27nyf> In-Reply-To: <001501cce008$8331a210$0401a8c0@xphd97xgq27nyf> X-Spam-Score: 1.4 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,RATWARE_GECKO_BUILD=1.426 Subject: Re: LF: 500 opera Content-Type: multipart/alternative; boundary="------------030309010307000707080202" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:399110112:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40d94f27d2f36f04 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------030309010307000707080202 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit OPERA (DigiMode) doing a fine job there. Re swamping by stronger stations, I find as long as other signals are not co-channel then OPERA is amazingly robust, I can RX and decode -25dB signals within a few Hz of my own simultaneous transmission. E On 31/01/2012 11:06, mal hamilton wrote: > G3ZJO decoded and stopped at 1057 z TRACE visible during transmission. > I happened to be in the shack to observe > Antenna in use 1/4 wave inv L full size 500 > Strong signals when active at the same time as the weaker ones are > swamping the weaker ones. > If there was sufficient band available on 500 to accommodate all modes > I would suggest QRP merchants use a different sub band to the QRO STNS > G3KEV --------------030309010307000707080202 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit OPERA (DigiMode) doing a fine job there.

Re swamping by stronger stations, I find as long as other signals are not co-channel then OPERA is amazingly robust, I can RX and decode -25dB signals within a few Hz of my own simultaneous transmission.

E

On 31/01/2012 11:06, mal hamilton wrote:

G3ZJO decoded and stopped at 1057 z TRACE visible during transmission. I happened to be in the shack to observe

Antenna in use 1/4 wave inv L full size 500

Strong signals when active at the same time as the weaker ones are swamping the weaker ones.

If there was sufficient band available on 500 to accommodate all modes I would suggest QRP merchants use a different sub band to the QRO STNS

G3KEV

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