X-GM-THRID: 1235384865678835942 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.35.12.7 with SMTP id p7cs55388pyi; Thu, 3 May 2007 11:46:27 -0700 (PDT) Received: by 10.78.171.20 with SMTP id t20mr1078056hue.1178217987138; Thu, 03 May 2007 11:46:27 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id j33si3090011ugc.2007.05.03.11.46.24; Thu, 03 May 2007 11:46:27 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1HjgFh-0004j4-Hj for rs_out_1@blacksheep.org; Thu, 03 May 2007 19:42:05 +0100 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1HjgFg-0004iv-Op for rsgb_lf_group@blacksheep.org; Thu, 03 May 2007 19:42:04 +0100 Received: from imo-d23.mx.aol.com ([205.188.139.137]) by relay3.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1HjgFe-0005AY-Rn for rsgb_lf_group@blacksheep.org; Thu, 03 May 2007 19:42:04 +0100 Received: from WarmSpgs@aol.com by imo-d23.mx.aol.com (mail_out_v38_r9.2.) id l.c1f.1561caad (52851) for ; Thu, 3 May 2007 14:41:54 -0400 (EDT) Received: from FWM-M30 (fwm-m30.webmail.aol.com [64.12.193.232]) by cia-m04.mx.aol.com (v115.11) with ESMTP id MAILCIAM043-ce73463a2cf11a1; Thu, 03 May 2007 14:41:53 -0400 References: <004d01c78c3a$48757ec0$0b01a8c0@server> <003501c78c4d$0d68f060$0300a8c0@lark> <006a01c78d17$440b3d60$0b01a8c0@server> To: rsgb_lf_group@blacksheep.org Date: Thu, 03 May 2007 14:41:53 -0400 In-Reply-To: <006a01c78d17$440b3d60$0b01a8c0@server> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: warmspgs@aol.com X-MB-Message-Type: User X-Mailer: AOL WebMail 25698 Received: from 70.183.78.62 by FWM-M30.sysops.aol.com (64.12.193.232) with HTTP (WebMailUI); Thu, 03 May 2007 14:41:53 -0400 Message-Id: <8C95BC9DABC7512-1190-E1D2@FWM-M30.sysops.aol.com> X-AOL-IP: 64.12.193.232 X-Spam-Flag: NO X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55,UNPARSEABLE_RELAY=0.001 Subject: Re: LF: Re: Re: Passive high-pass filter circuits? Content-Type: multipart/alternative; boundary="--------MB_8C95BC9DABC7512_1190_19FDB_FWM-M30.sysops.aol.com" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_20_30,HTML_MESSAGE, NO_REAL_NAME 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 Status: O X-Status: X-Keywords: X-UID: 1736 ----------MB_8C95BC9DABC7512_1190_19FDB_FWM-M30.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" JB, Your frequency-domain requirements sound very simple to meet. No need for a lot of complexity there. However, there are still a couple of unknowns. Although you have chosen to use 600 ohm line, do you have any idea what the source impedance and load impedance are? Can you describe the antenna, and what is the termination and/or coupling arrangement of the apparatus to which it connects. John ________________________________________________________________________ AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com. ----------MB_8C95BC9DABC7512_1190_19FDB_FWM-M30.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/html; charset="us-ascii"

JB,

Your frequency-domain requirements sound very simple to meet. No need for a lot of complexity there. However, there are still a couple of unknowns. Although you have chosen to use 600 ohm line, do you have any idea what the source impedance and load impedance are? Can you describe the antenna, and what is the termination and/or coupling arrangement of the apparatus to which it connects.

John

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