Return-Path: Received: (qmail 19790 invoked from network); 24 Feb 1999 08:49:51 -0000 Received: from magnet.plus.net.uk (HELO magnet.force9.net) (195.166.128.26) by medusa.plus.net.uk with SMTP; 24 Feb 1999 08:49:51 -0000 Received: (qmail 21445 invoked from network); 24 Feb 1999 08:50:56 -0000 Received: from post.thorcom.com (194.75.130.70) by magnet.plus.net.uk with SMTP; 24 Feb 1999 08:50:56 -0000 Content-Transfer-Encoding: 8bit Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10Fa2O-0002HE-01; Wed, 24 Feb 1999 08:51:24 +0000 X-Priority: 3 Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id IAA11752 for rsgb_lf_group-outgoing; Wed, 24 Feb 1999 08:46:54 GMT X-MSMail-Priority: Normal Received: from post.thorcom.com (root@post.unica.co.uk [194.75.183.70]) by troy.blacksheep.org (8.6.12/8.6.12) with ESMTP id IAA11721 for ; Wed, 24 Feb 1999 08:44:37 GMT From: drassew2@interalpha.co.uk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.interalpha.co.uk ([195.26.224.14] helo=post.interalpha.net ident=0) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10FZzA-0002GM-00 for rsgb_lf_group@blacksheep.org; Wed, 24 Feb 1999 08:48:04 +0000 Received: from th-mod15.interalpha.net (th-mod15.interalpha.net [195.26.228.206]) by post.interalpha.net (8.8.7/8.6.11) with SMTP id IAA19897 for ; Wed, 24 Feb 1999 08:51:05 GMT Date: Wed, 24 Feb 1999 08:51:05 GMT Message-ID: <199902240851.IAA19897@post.interalpha.net> X-Sender: drassew2@post.interalpha.co.uk X-Mailer: Windows Eudora Version 1.4.4 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed To: rsgb_lf_group@blacksheep.org Subject: Re: LF: PSK31 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org >Some of you may have heard me making funny noises on 136. This has been a >test of my PSK31 equipment. I can now produce about 200W or so of the stuff >which is about 6dB down on my normal level but probably good enough for a >test. Is anyone else ready to give it a try? Please let me know and we can >set up a sked. >I am using Peter G3PLX's soundblaster software to send and receive. I'm ready to go anytime with this mode, only about 30 - 40 Watts though. Haven't yet built an 'MRF PA after blowing one of the Maplin modules during the Transatlantic tests earlier. Is that 6dB down on mean power ? As PSK31 has a peak to mean ratio of exactly 3dB I suspect the extra power reduction is to get the transmitter into a suitable linear region. If I hear you I'll reply directly. Had a PSK31 QSO with G3PLX a year ago, 390 km with near 100% copy each way - In the region of 100 Watts each end. Andy G4JNT