Return-Path: Received: (qmail 10609 invoked from network); 27 Dec 2001 11:27:02 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 27 Dec 2001 11:27:02 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 5595 invoked from network); 27 Dec 2001 11:27:04 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 27 Dec 2001 11:27:04 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16JYX7-0004LK-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 27 Dec 2001 11:17:09 +0000 Received: from mailhost.netscapeonline.co.uk ([194.201.52.152]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16JYX6-0004LF-00 for rsgb_lf_group@blacksheep.org; Thu, 27 Dec 2001 11:17:08 +0000 Received: from ldsas11-75-126-51.cw-visp.com ([212.137.126.51] helo=netscapeonline.co.uk) by mailhost.netscapeonline.co.uk with esmtp (Exim 3.02 #1) id 16JYM0-0004Me-00 for rsgb_lf_group@blacksheep.org; Thu, 27 Dec 2001 11:05:41 +0000 Message-ID: <3C2AF4D6.B7C93C4F@netscapeonline.co.uk> Date: Thu, 27 Dec 2001 10:15:50 +0000 From: "gii3kev" Organization: Netscape Online member X-Mailer: Mozilla 4.6 [en-gb]C-CCK-MCD NetscapeOnline.co.uk (Win95; I) X-Accept-Language: en-GB,en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: 136 References: <3C2A5DDD.F33E5C02@ns.sympatico.ca> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: john currie wrote: > Hi all Saw nil from OM2TW, but will look more carefully later. M0BMU > was in all night with the 7 freq format. Seems to take a lot of space > . Why will it be better? That is what I would also like to know. 7 fsk with tone spacing takes up about 14 times more spectrum and is not compatable with others modes on close adjacent frequencies, do not see any advantage with dfcw either except that it and 7fsk are more noticeable on screen but that does not constitute a better signal over noise transmission type or any advantage over QRS which takes the minimum bandwith of all the modes to achieve the object on a very narrow band. A few nights ago someone was testing a data transmission around 135.920 khz taking up 500 hz of bandwidth, what is coming next !!!!!!!!! While experiments with different modes are to be encouraged 136 khz is not a suitable band with only 2 khz available, the only suitable mode for this band is CW, normal speed and QRS. Try the HF and VHF bands or Satellites where there is and abundance of spectrum available for mode experimentation. > G3KEV > > Valerio, OM2TW will be gone on vacation for few days . Perhaps you > can transmit on 135.922 until he is back. Best time seems to be from > 0300 to your sunrise > Let me know if you will be transmitting es I will look for you. > 73 all es hny de john VE1ZJ