Return-Path: Received: from rly-dd06.mx.aol.com (rly-dd06.mail.aol.com [172.19.141.153]) by air-dd04.mail.aol.com (v120.9) with ESMTP id MAILINDD043-b844725cde121; Mon, 29 Oct 2007 08:11:32 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dd06.mx.aol.com (v120.9) with ESMTP id MAILRELAYINDD066-b844725cde121; Mon, 29 Oct 2007 08:11:14 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ImTRX-0001JQ-CE for rs_out_1@blacksheep.org; Mon, 29 Oct 2007 12:10:07 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ImTRW-0001JH-RL for rsgb_lf_group@blacksheep.org; Mon, 29 Oct 2007 12:10:06 +0000 Received: from an-out-0708.google.com ([209.85.132.245]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1ImTRU-0003Kw-PU for rsgb_lf_group@blacksheep.org; Mon, 29 Oct 2007 12:10:06 +0000 Received: by an-out-0708.google.com with SMTP id b20so234864ana for ; Mon, 29 Oct 2007 05:10:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=zPmzVS1t2EOgKlzRSVZqP4rrEtnchPa28sWuzV2TC5E=; b=URxR6R0Qg+g2EsqY8qe661AUhpUvWigm/SOKdn6tpDQLudkaZksjcD90RM3AQjYeNe0D+kUjiQcLxA2xtTWKIY+9UqMre9D9tk8XVmd/LpNMpp/UeGWxD/66s4ive6ciEBrZnt04Y4nNaUXeHuFB8mWWuXo3+/Bj312fABKRw7Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=hLr2xgZzmPlhdDV+b6G8XdsfOKiYwES38nK2q0mtYpQ2oH6oS+/B5Vm0hRigoJv7UrW07y4aTvnldjLD1Uq3FwdNApMm86k1/D3MgJYYvrHtSJfXO7kHK1ZipIJbkCJQbmV3gPwuO6KNUAqYPFBWy17dqNP0XEEnCV4ttcBnVMg= Received: by 10.100.107.7 with SMTP id f7mr888920anc.1193659801147; Mon, 29 Oct 2007 05:10:01 -0700 (PDT) Received: by 10.35.100.10 with HTTP; Mon, 29 Oct 2007 05:10:01 -0700 (PDT) Message-ID: Date: Mon, 29 Oct 2007 12:10:01 +0000 From: "Andy Talbot" To: rsgb_lf_group@blacksheep.org In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline References: DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Chebyshev 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=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-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : X-Mailer: Unknown (No Version) If you want simple lumped ones, my website contains a basic filter design prog http://www.scrbg.org/g4jnt/designsw.htm For more advanced stuff, I use Ansoft Designer SV (student version) which has a wonderful filter design tool under "projects - insert filter design" then follow th einstructions Designer SV is a big download, but its free and an excelent Rf design tool ! Andy G4JNT On 29/10/2007, Laurence KL1X wrote: > > Anyone point me to an online tool for designing LPF's for say 5 7 or 9 pole Chebyshev's on LF or HF? ps. Mr mail service hasnt plonked this months Radcom onto my desk and not expecting it for another week or so; this is typical for a routing that includes UK, Houston thence Singapore. with thanks Laurence 9V1 LF > > _________________________________________________________________ > Peek-a-boo FREE Tricks & Treats for You! > http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us >