Return-Path: Received: (qmail 26828 invoked from network); 24 Feb 2003 10:13:47 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 24 Feb 2003 10:13:47 -0000 Received: (qmail 17140 invoked by uid 10001); 24 Feb 2003 10:13:34 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 24 Feb 2003 10:13:34 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.12) id 18nFbR-0007s3-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 24 Feb 2003 10:12:53 +0000 Received: from [193.212.240.200] (helo=virus-out.ttyl.com) by post.thorcom.com with esmtp (Exim 4.12) id 18nFbQ-0007ru-00 for rsgb_lf_group@blacksheep.org; Mon, 24 Feb 2003 10:12:52 +0000 Received: from [134.47.162.190] by virus-in.online.no with ESMTP for rsgb_lf_group@blacksheep.org; Mon, 24 Feb 2003 11:12:05 +0100 Received: from tns-fbu-22-215.corp.telenor.no ([134.47.162.192]) by tns-fbu-22-209.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Mon, 24 Feb 2003 11:12:04 +0100 Received: from tns-fbu-22-213.corp.telenor.no ([134.47.162.191]) by tns-fbu-22-215.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Mon, 24 Feb 2003 11:12:03 +0100 Received: from TNS-FBU-2E-003.corp.telenor.no ([134.47.164.101]) by tns-fbu-22-213.corp.telenor.no with Microsoft SMTPSVC(5.0.2195.4453); Mon, 24 Feb 2003 11:12:03 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 content-class: urn:content-classes:message Date: Mon, 24 Feb 2003 11:12:03 +0100 Message-ID: <2D280BB697C7EE4C979C5C89925418EFB05B0D@TNS-FBU-2E-003.corp.telenor.no> Thread-Topic: Siemens D2006 Selective Level Meter/Pelelmesser Thread-Index: AcKD5urpWW5spixYT7CQhdF+ThzSeRYBeNKw From: jan-martin.noding@telenor.com To: rsgb_lf_group@blacksheep.org X-OriginalArrivalTime: 24 Feb 2003 10:12:03.0433 (UTC) FILETIME=[2D58ED90:01C2DBED] MIME-Version: 1.0 Subject: LF: RE: Siemens D2006 Selective Level Meter/Pelelmesser Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=1.8 required=6.0tests=NO_REAL_NAME,SPAM_PHRASE_01_02version=2.43 X-Spam-Level: * X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Put some notes about measuring instruments and Pegelmessers on my site http://home.online.no/~la8ak/5.htm This domene is only 1 day old, so I hope to make it more complete later 73, Jan_Martin LA8AK (in JO38XC) N4623-Kristiansand (tel.: +47-380-87178 Home)(38052660 Work 90777126 Mobile) Radio Communication http://home.online.no/~la8ak/ -----Original Message----- From: Tracey Gardner [mailto:tracey.gardner@ntlworld.com] Sent: 4. november 2002 10:11 To: rsgb_lf_group@blacksheep.org Subject: LF: Siemens D2006 Selective Level Meter/Pelelmesser Hi Jan_Martin I've got a similar problem with my level meters, they all seem to output tones between 1000Hz and 1500Hz. I'm considering using a cheap "Voice Modulator" IC the HT8950 from Holtek on the output. This is a simple 18 pin device designed for use in toys, but it offers the ability to divide a tone by certain fixed ratios. ISTR that they are 8/9, 4/5, 2/3 so that your 1000Hz could be reduced to say 666Hz with a single HT8950. If you were to daisy chain two or more 8950's you could come up with any number of combinations! It also does "Robot" and "Vibrato" effects but I can't see those being much use to us! :-) The 8950 is available in Maplin over here in the UK for about £2.50 and I found the application notes on web by doing a search on Google. 73s Tracey Does somebody know if it is possible to change the pitch? It has 80Hz as well as 3100Hz bandwidth, but the pitch is ca 1000Hz and not too pleasant to listen to, would rather prefer 500Hz