X-GM-THRID: 1211849335528080436 X-Gmail-Labels: rsgb lf X-Gmail-Received: c50de1754b93fe089fe75b9c708f79260c5f0085 Delivered-To: daveyxm@gmail.com Received: by 10.64.249.16 with SMTP id w16cs284150qbh; Wed, 16 Aug 2006 03:23:00 -0700 (PDT) Received: by 10.49.55.13 with SMTP id h13mr512619nfk; Wed, 16 Aug 2006 03:22:59 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id n23si3356613nfc.2006.08.16.03.22.56; Wed, 16 Aug 2006 03:22:59 -0700 (PDT) Received-SPF: neutral (gmail.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 1GDIRA-0003AT-Lw for rs_out_1@blacksheep.org; Wed, 16 Aug 2006 11:15:48 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1GDIRA-0003AK-4O for rsgb_lf_group@blacksheep.org; Wed, 16 Aug 2006 11:15:48 +0100 Received: from imo-m26.mx.aol.com ([64.12.137.7]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1GDIR4-0008Qa-QD for rsgb_lf_group@blacksheep.org; Wed, 16 Aug 2006 11:15:47 +0100 Received: from G0MRF@aol.com by imo-m26.mx.aol.com (mail_out_v38_r7.6.) id l.527.5f2fb30 (42808) for ; Wed, 16 Aug 2006 06:15:30 -0400 (EDT) From: G0MRF@aol.com Message-ID: <527.5f2fb30.32144a41@aol.com> Date: Wed, 16 Aug 2006 06:15:29 EDT To: rsgb_lf_group@blacksheep.org MIME-Version: 1.0 X-Mailer: 9.0 SE for Windows sub 5014 X-Spam-Flag: NO X-Spam-Score: -0.4 (/) X-Spam-Report: autolearn=disabled,AWL=-0.697,HTML_50_60=0.095,HTML_MESSAGE=0.001,NO_REAL_NAME=0.178 Subject: Re: LF: ik2pii pll for 136kHz? Content-Type: multipart/alternative; boundary="-----------------------------1155723329" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.1 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MAILTO_TO_SPAM_ADDR,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: 6769 -------------------------------1155723329 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Hello Dick. If it's simplicity: performance, then it's hard to beat Johan's DDS using the AD9832. I once did a PCB for that which included all sorts of filtering and PSK modulation. But if you leave off all that optional stuff it really comes down to 4 components. 1) A PIC controller 2) The DDS 3) A buffer amp 4) An LCD display. No boards left now but it can be built on small pitch veroboard. Johan's link is _http://home4.swipnet.se/~w-41522/minidds/minidds.html_ (http://home4.swipnet.se/~w-41522/minidds/minidds.html) While the picture of my version is at: _http://www.g0mrf.freeserve.co.uk/dds.htm_ (http://www.g0mrf.freeserve.co.uk/dds.htm) Note that in the final version of my PCB apx 60% of the board area / components are not required for simple applications. Good to see you getting results with the TX Regards David In a message dated 16/08/2006 06:21:27 GMT Standard Time, knaap159@zonnet.nl writes: I thouht to have seen a PLL design by IK2PII or an other I-station for 136kHz which uses rather simple components. Unfortunatly I lost the schematic, and can't find it back on internet either. Anyone? I've found a design from OK1DX, but I have troubles to print the schematic diagram, it will not fit on one page...... 73 Dick, pa4vhf -------------------------------1155723329 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Hello Dick.

If it's simplicity: performance, then it's hard to beat Johan's DD= S=20 using the AD9832.

I once did a PCB for that which included all sorts of filtering and PSK= =20 modulation. But if you leave off all that optional stuff it really comes dow= n=20 to 4 components.

1) A PIC controller

2) The DDS

3) A buffer amp

4) An LCD display.

No boards left now but it can be built on small pitch=20 veroboard.

Johan's link is http://home4.= swipnet.se/~w-41522/minidds/minidds.html

While the picture of my version is at: http://www.g0mrf.freeserve= .co.uk/dds.htm

Note that in the final version of my PCB apx 60% of the board area /=20 components are not required for simple applications.

Good to see you getting results with the TX

Regards

David

In a message dated 16/08/2006 06:21:27 GMT Standard Time,=20 knaap159@zonnet.nl writes:

I thouht to have seen a PLL design by IK2= PII or=20 an other I-station for 136kHz which uses rather simple=20 components.

Unfortunatly I lost the schematic, and ca= n't find=20 it back on internet either.

Anyone?

I've found a design from OK1DX, but I hav= e=20 troubles to print the schematic diagram, it will not fit on one=20 page......

73

Dick, pa4vhf

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