Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 522B33800011C; Thu, 31 Jan 2013 11:05:57 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1U0wcz-000355-T9 for rs_out_1@blacksheep.org; Thu, 31 Jan 2013 16:04:41 +0000 Received: from [195.171.43.34] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1U0wcz-00034w-DU for rsgb_lf_group@blacksheep.org; Thu, 31 Jan 2013 16:04:41 +0000 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay2.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1U0wcx-0004KN-Mh for rsgb_lf_group@blacksheep.org; Thu, 31 Jan 2013 16:04:40 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArECAJGUClFcGSgn/2dsb2JhbAANOIwkqxaEE4NohDAFGBYYAwIBAgFYCAEBtm2TV40iQYMpA5YSk0M X-IronPort-AV: E=Sophos;i="4.84,577,1355097600"; d="scan'208,217";a="61269808" Received: from host-92-25-40-39.as13285.net (HELO [127.0.0.1]) ([92.25.40.39]) by out1.ip07ir2.opaltelecom.net with ESMTP; 31 Jan 2013 15:59:04 +0000 Message-ID: <510A94C5.2000001@psk31.plus.com> Date: Thu, 31 Jan 2013 15:59:01 +0000 From: g3zjo User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org X-Antivirus: avast! (VPS 130130-3, 31/01/2013), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay2.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: LF The change from 500KHz to 472KHz rendered a few mini Xtal controlled TX modules once used on 500 redundant so I have changed them to DDS control. I have run the 200uW TX again which gave me my first spot on 500kHz in 20009 :- [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 5934134de2d93cab1d5fc440b67de82f Subject: LF: QRPpp on 474KHz Content-Type: multipart/alternative; boundary="------------040208020603000403040407" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=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-sid: 3039ac1d40d5510a96645f8f X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. --------------040208020603000403040407 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit LF The change from 500KHz to 472KHz rendered a few mini Xtal controlled TX modules once used on 500 redundant so I have changed them to DDS control. I have run the 200uW TX again which gave me my first spot on 500kHz in 20009 :- *2009-11-22 00:48 G3ZJO 0.503814 -30 0 IO92ng +17 0.050 M0BMU IO91vr 76 47* Since that first report I have made antenna improvements so assuming no changes at M0BMU these should be reflected in the report from that rig. *2013-01-28 00:50 G3ZJO 0.475790 -18 0 IO92ng +0 0.001 M0BMU IO91vr 76 47 *Last night I ran a different mixer/driver to the same PA still 200uW EIRP with very much the same results. *2013-01-30 00:30 G3ZJO 0.475612 -21 0 IO92ng +0 0.001 M0BMU IO91vr 76 47* Today I completed the change of my very first test TX into a buffer, this TX could never produce enough signal into my first antenna experiments for a decode. I measured the power into a 50R load it is 10dB down on the above TX so 20uW EIRP. I tried it as the PA. *2013-01-31 14:46 G3ZJO 0.475601 -30 0 IO92ng +0 0.001 M0BMU IO91vr 76 47 *After 4 transmissions (only 8 minutes on air) my best DX is 100Km. *2013-01-31 14:56 G3ZJO 0.475602 -29 0 IO92ng +0 0.001 G3SZS IO81vv 100 62 *If I was calling CQ on the key I estimate *8000 Years* before I got any report AT ALL**then it would most likely be meaningless*599:-) * Unfortunately**the power levels shown by the WSPR reports are not correct and must be disregarded. Tests will continue at 20 micro Watts EIRP for this evening. 73 Eddie --------------040208020603000403040407 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit LF

The change from 500KHz to 472KHz rendered a few mini Xtal controlled TX modules once used on 500 redundant so I have changed them to DDS control.

I have run the 200uW TX again which gave me my first spot on 500kHz in 20009 :-

2009-11-22 00:48 G3ZJO 0.503814 -30 0 IO92ng +17 0.050 M0BMU IO91vr 76 47

Since that first report I have made antenna improvements so assuming no changes at M0BMU these should be reflected in the report from that rig.

2013-01-28 00:50 G3ZJO 0.475790  -18  0 IO92ng +0  0.001 M0BMU  IO91vr 76 47

Last night I ran a different mixer/driver to the same PA still 200uW EIRP with very much the same results.

2013-01-30 00:30 G3ZJO 0.475612   -21  0 IO92ng +0  0.001 M0BMU  IO91vr 76 47

Today I completed the change of my very first test TX into a buffer, this TX could never produce enough signal into my first antenna experiments for a decode. I measured the power into a 50R load it is 10dB down on the above TX so 20uW EIRP. I tried it as the PA.

2013-01-31 14:46 G3ZJO 0.475601    -30  0 IO92ng  +0  0.001 M0BMU IO91vr 76  47

After 4 transmissions (only 8 minutes on air) my best DX is 100Km.

2013-01-31 14:56 G3ZJO 0.475602    -29  0 IO92ng +0  0.001  G3SZS  IO81vv 100 62

If I was calling CQ on the key I estimate 8000 Years before I got any report AT ALL then it would most likely be meaningless 599 :-)

Unfortunately the power levels shown by the WSPR reports are not correct and must be disregarded. Tests will continue at 20 micro Watts EIRP for this evening.

73 Eddie

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