Return-Path: Received: from rly-dd08.mx.aol.com (rly-dd08.mail.aol.com [172.19.141.155]) by air-dd08.mail.aol.com (v125.7) with ESMTP id MAILINDD084-b8f4af6fde339c; Sun, 08 Nov 2009 12:20:47 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dd08.mx.aol.com (v125.7) with ESMTP id MAILRELAYINDD081-b8f4af6fde339c; Sun, 08 Nov 2009 12:20:36 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1N7BQK-0007Wv-MZ for rs_out_1@blacksheep.org; Sun, 08 Nov 2009 17:19:32 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1N7BQK-0007Wm-8K for rsgb_lf_group@blacksheep.org; Sun, 08 Nov 2009 17:19:32 +0000 Received: from sighthound.demon.co.uk ([80.177.174.126]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1N7BPM-0001T7-S1 for rsgb_lf_group@blacksheep.org; Sun, 08 Nov 2009 17:18:33 +0000 Received: from [192.168.1.6] (opc1.twatt.home [192.168.1.6]) by deerhound.twatt.home (Postfix) with ESMTP id 9C8113B535 for ; Sun, 8 Nov 2009 17:19:29 +0000 (UTC) Message-ID: <4AF6FDA1.1070404@sighthound.demon.co.uk> Date: Sun, 08 Nov 2009 17:19:29 +0000 From: John P-G User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <019f01ca6061$34a80040$0301a8c0@mal769a60aa920> <20091108120711.z1zbaakm0cw0cocg@webmail6.kuleuven.be> <01cd01ca6068$54f09a40$0301a8c0@mal769a60aa920> <20091108141505.zsudabk1wg80k848@webmail6.kuleuven.be> <4AF6CA9E.70403@sighthound.demon.co.uk> <20091108151952.3tkxrc9ggk8s84o8@webmail6.kuleuven.be> In-Reply-To: <20091108151952.3tkxrc9ggk8s84o8@webmail6.kuleuven.be> X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: daytime WSPR Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=0.0 required=5.0 tests=none 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-IP: 193.82.116.20 X-Mailer: Unknown (No Version) Rik, LF Yes - I was pleased at the results too! I note that now, in darkness, that my active loop is giving much the same s/n results to the vertical/tuned pre-amp, whereas in daytime the vertical/pre-amp was far better. I've seen this before, the active loop's own internal noise limits its useable sensitivity in the day, when extra gain on a passive antenna brings increased sensitivity. At night the external noise dominates in both setups, and the results become very similar. I'm running both in parallel at the moment - spots from GM4SLV are the vertical/preamp/IC718 and from CLOUSTA are from the ALA1530S+ loop/IC-R75. Cheers, John Rik Strobbe wrote: > John, > > amazing. > -16dB with 200mW ERP would mean that only 10mW ERP would be needed to > get a marginal copy.