Return-Path: Received: from rly-md01.mx.aol.com (rly-md01.mail.aol.com [172.20.29.139]) by air-md07.mail.aol.com (v121_r4.4) with ESMTP id MAILINMD072-8e449a269dd203; Mon, 23 Feb 2009 04:18:49 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-md01.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINMD014-8e449a269dd203; Mon, 23 Feb 2009 04:18:35 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LbWwr-0006Mt-79 for rs_out_1@blacksheep.org; Mon, 23 Feb 2009 09:18:01 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LbWwq-0006Mk-SC for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2009 09:18:00 +0000 Received: from pne-smtpout2-sn2.hy.skanova.net ([81.228.8.164]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LbWwq-0004Rr-5f for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2009 09:18:00 +0000 Received: from [127.0.0.1] (213.64.47.29) by pne-smtpout2-sn2.hy.skanova.net (7.3.129) (authenticated as u33233109) id 4873CA95037D7B09 for rsgb_lf_group@blacksheep.org; Mon, 23 Feb 2009 10:17:54 +0100 Message-ID: <49A269C3.7030800@telia.com> Date: Mon, 23 Feb 2009 10:17:55 +0100 From: "Johan H. Bodin" User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Karma: unknown: X-Spam-Score: 0.7 (/) X-Spam-Report: autolearn=disabled,SUBJ_HAS_SPACES=0.651 Subject: Re: LF: Wanted - non-random PN sequence generator - so Off Topic it shouldn't be allowed here! Content-Type: text/plain; charset=ISO-8859-1 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=1.0 required=5.0 tests=SUBJ_HAS_SPACES 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) Hi Andy, Joe K1JT did something similar in v0.6 of the WSPR software. From the release notes: "3. A better randomizing algorithm for deciding when to transmit. (The method used in v0.5 was "too random" for some people; the specified Tx percentages worked out faithfully when averaged over a long time, but not necessarily over half an hour or so.)" You could have a look at the WSPR source code (available somewhere on the web, I believe) or just ask K1JT. 73 Johan SM6LKM Andy Talbot wrote: > I'm looking for a half-decent way of generating a pseudo > random Tx/Rx sequence with defined duty cycle that does > not give the long(ish) consecutive runs of 0's or 1's that > MUST ALWAYS occasionally be seen in a truly random sequence.