Envelope-to: dave@picks.force9.co.uk Delivery-date: Fri, 03 Feb 2006 11:01:20 +0000 Received: by ptb-mxcore01.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1F4ygq-0003NQ-8u for dave@picks.force9.co.uk; Fri, 03 Feb 2006 11:01:20 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (PlusNet MXCore v2.00) id 1F4ygq-0003NF-4P for dave@picks.force9.co.uk; Fri, 03 Feb 2006 11:01:20 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1F4ygP-0002aa-VN for rs_out_1@blacksheep.org; Fri, 03 Feb 2006 11:00:53 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1F4ygP-0002aR-7g for rsgb_lf_group@blacksheep.org; Fri, 03 Feb 2006 11:00:53 +0000 Received: from post-22.mail.nl.demon.net ([194.159.73.192]) by relay1.thorcom.net with esmtp (Exim 4.51) id 1F500j-0003We-Sc for rsgb_lf_group@blacksheep.org; Fri, 03 Feb 2006 12:26:12 +0000 Received: from ndb.demon.nl ([82.161.81.65]:12563 helo=pcroelof) by post-22.mail.nl.demon.net with smtp (Exim 4.51) id 1F4yg8-0004M5-OI for rsgb_lf_group@blacksheep.org; Fri, 03 Feb 2006 11:00:36 +0000 Message-ID: <009801c628b1$0b844ca0$2201a8c0@pcroelof> From: "Roelof Bakker" To: rsgb_lf_group@blacksheep.org References: <000701c62720$be51b3a0$6401a8c0@JAYTERMINAL> <1246025403.20060201202249@dx.ru> <1941044238.20060201210259@dx.ru> <486075040.20060202130106@dx.ru> <000901c627ec$a44d91f0$2201a8c0@pcroelof> <43E2D5EC.2090002@verizon.net> Date: Fri, 3 Feb 2006 12:00:28 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Subject: Re: LF: J310 IMD figures Content-Type: text/plain; charset=Windows-1252; format=flowed Content-Transfer-Encoding: 8bit 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-PN-SpamFiltered: by PlusNet MXCore (v2.00) Hello André, Thank you for the Antenna and Propagation Manual link. >> In our case we chose 300 Hz << I assume this should be 300 kHz. Yes, I agree that IMD-measurements can be tricky. For IP2 I often found level differences for the IMD products F1 + F2 and F1 - F2. In this specific case, a different value for the 12 pF capacitor, leads to different results. For that reason, I tried the real thing by using BCB stations as signal generators. However, there are no nearby very strong BCB stations here. I will have to drive 200 km to get close to a Dutch MW transmitter site. Best regards, Roelof Bakker, pa0rdt