Return-Path: Received: (qmail 20748 invoked from network); 26 Feb 2001 16:12:04 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 26 Feb 2001 16:12:04 -0000 Received: (qmail 9063 invoked from network); 26 Feb 2001 16:11:59 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 26 Feb 2001 16:11:59 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14XQ8b-0004Tg-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 26 Feb 2001 16:04:37 +0000 Received: from imo-d06.mx.aol.com ([205.188.157.38]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14XQ8X-0004Tb-00 for rsgb_lf_group@blacksheep.org; Mon, 26 Feb 2001 16:04:33 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from MarkusVester@aol.com by imo-d06.mx.aol.com (mail_out_v29.5.) id l.5c.7aef634 (672) for ; Mon, 26 Feb 2001 11:03:30 -0500 (EST) From: MarkusVester@aol.com Message-ID: <5c.7aef634.27cbd850@aol.com> Date: Mon, 26 Feb 2001 11:03:28 EST Subject: LF: SXV coffee break ? To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------060106090401020802020503" X-Mailer: AOL 4.0.i for Windows 95 sub 70 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: This is a multi-part message in MIME format. --------------060106090401020802020503 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit Hi Alan and all, > Second there is a very consistent wide dip in signal which has > occurred with a minimum within a few minutes of 1500z every day. (No I dont > think it is the tea-break time at the TX site! the dip is about 10dB and the > signals takes about 20mins to decline and another 20 mins to return) This sounded just too curious, so I took a look. Well, the little spectrogram (26.02.01, 14:25..15:25, 10.8 Hz, 30 s, +12..+42 dBuV/m) suggests the drop from 14:49 to 14:53 is abrupt and actually a man-made effect. Fs this afternoon was around 34 dBuV/m, and tx frequency is not absolutely stable, notice the half-pixel drift upwards before the break. 73 de Markus, DF6NM --------------060106090401020802020503 Content-Type: image/jpeg; name="SXVBREAK.JPG" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="SXVBREAK.JPG" /9j/4AAQSkZJRgABAQEBLAEsAAD/2wBDAAoHBwgHBgoICAgLCgoLDhgQDg0NDh0VFhEYIx8l JCIfIiEmKzcvJik0KSEiMEExNDk7Pj4+JS5ESUM8SDc9Pjv/wAALCAAUAHgBAREA/8QAHwAA AQUBAQEBAQEAAAAAAAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQR BRIhMUEGE1FhByJxFDKBkaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RF RkdISUpTVFVWV1hZWmNkZWZnaGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ip qrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/9oACAEB AAA/APN08J3TDmaEZ6fvB1py+Ebgtj7TAP8AtoKQ+FZlj3G5t+mcCSnnwnIRkXduP+B/X/Cg eFWwCbm3PIHDnn9KP+EUIBzeW+dpPDn/AArCuYRBdzQ7lPlyMuR0ODitmz8Mm4tYZzd248wB sMxGM1OvhPegIvIAf98/4e1KPCYMhX7VbgD/AGzQ3hNVJ/0y34OMbj6U9fCKHObu3/77P+f/ ANVRjwouQDfW/I7seOae/hJASBeW4wM/fNDeE41AJvIDkdNxrd/swqpPJ4HGOg9P60Npxxxk Z9ulOXTM5jwVznnHAqQ6cGb7hGQO2Mc0o01SQOVI6cUv9mpjGCM8Z9M1weo6dc/2ld7YsqJn x8w/vH3rsNL05RptrvHzCMZXPfFXP7NT++eOvP0qQaamAdxyTnGaRNOjDcnOcDr+v+fSlNjF uDZJxn5c/wCf8mmjTolLDhyByMih7GMkLk546t/n1prWMfmNl2BU4xmvP0uLkswN1OQM/wDL Q04NM0ZJuJj8oP3zTW8zds8+XHP8dK4f5f30vIH8dRjeXAMsnOD96lKEZHmSf99VE8QzIckk HvT0ixECHcc9jThHgH53+7nr70LFlyvmPgf7VAj+WMb3+YZPPtThF90b3wwOfm96jaPBOHfg etStCpmHzN97HWpWiBTO98/Wv//Z --------------060106090401020802020503--