Return-Path: Received: from mtain-mc01.r1000.mx.aol.com (mtain-mc01.r1000.mx.aol.com [172.29.96.73]) by air-db10.mail.aol.com (v128.1) with ESMTP id MAILINDB104-869e4bbc7d63214; Wed, 07 Apr 2010 08:41:07 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mc01.r1000.mx.aol.com (Internet Inbound) with ESMTP id 3F9F538000090; Wed, 7 Apr 2010 08:40:59 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NzUXh-0004Wv-61 for rs_out_1@blacksheep.org; Wed, 07 Apr 2010 13:39:37 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NzUXg-0004Wm-NU for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 13:39:36 +0100 Received: from mail-bw0-f219.google.com ([209.85.218.219]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NzUXd-0002zF-PK for rsgb_lf_group@blacksheep.org; Wed, 07 Apr 2010 13:39:36 +0100 Received: by bwz19 with SMTP id 19so23742bwz.4 for ; Wed, 07 Apr 2010 05:39:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:content-type; bh=NY4uzxRVscC5Xt/G8oB42ry9NC3yqlDsmAtRq31ulcs=; b=eJFaDONOlMzvWAfmGZw4BIOY2VVLK8D4Aa09oVqAOEzLSRPFNNvFvzEIMOepBUL/mQ AR0JE6BPI8Q5lkWR83pZ+++TwznZRp0Neq0/BgV7Qq9nTvkZFGUPJyHuuXQ9gu1xIuXv DIlYnlGB1oTooUs9BUmNm/xLKQ/fP6VOmCgdU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=b957hC+/ok57roc+EqTRQxWVVX2B1J34XgJizqYo9pjcylNlEMDyMcOIZCXK6mvPGC LkussTb9LDWa5UwgtMg1UOlmwsfjc+1qOb+nPBOb2LmmQ5XcIoHkwUX5E88PhNRnwD9E HuR/mahBfMHnTjZh1Mx3hCLJQOst+ZAjCzmYE= MIME-Version: 1.0 Received: by 10.204.120.212 with HTTP; Wed, 7 Apr 2010 05:39:27 -0700 (PDT) In-Reply-To: References: <628921.87147.qm@web28505.mail.ukl.yahoo.com> Date: Wed, 7 Apr 2010 13:39:27 +0100 Received: by 10.204.73.143 with SMTP id q15mr9100305bkj.184.1270643967753; Wed, 07 Apr 2010 05:39:27 -0700 (PDT) Message-ID: From: Andy Talbot To: rsgb_lf_group@blacksheep.org DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: WSPR without an SSB TRX ? Content-Type: multipart/alternative; boundary=0016e6dd9820557fd60483a4da8a X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE 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-global-disposition: G X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d230.1 ; domain : googlemail.com DKIM : pass x-aol-sid: 3039ac1d60494bbc7d5b0c5d X-AOL-IP: 193.82.116.20 X-Mailer: Unknown (No Version) --0016e6dd9820557fd60483a4da8a Content-Type: text/plain; charset=ISO-8859-1 Also, although it doesn't appear to be linked to that web page, http://www.g4jnt.com/JT4_Bcn.zip Is a simpler piC code that generates JT4 messages and outputs the data to a pair of l;ogic lines for driving an external four frequency source. JT4 and WSPR have a lot in commonin within the data side of things; its just the number of symbols and timing that is different. So you could try mixing and merging the PIC code to get what you need. Andy www.g4jnt.com On 7 April 2010 13:29, Andy Talbot wrote: > If you want a stanadalone beacon then http://www.g4jnt.com/beacons.htm > gives info on WSPR transmission, and includes PIC code for controlling an > AD9852 DDS and transmitting a pre-stored WSPR message. > > You coud dive inside the PIC code, extract the WSPR generating routine and > use it to drive the frequency determining part of your MH Rx. It does > require a GPS receiver (and uses the Motoloa binary protocol) to give the > accurate timing info, but its virtually impossible to send WSPR without > accurate timing anyway. > > > Andy > www.g4jnt.com > > > On 7 April 2010 13:16, Chris Osborn wrote: > >> LF, >> >> Is there a fairly simple interface unit which will enable me to >> transmit WSPR signals using my home built MF TX ? >> >> My TX has a VCO / FSK facility but no audio inputs. >> >> I've had a search of the internet but haven't yet found any suitable >> circuitry. >> All the articles I've viewed so far assume that one has an SSB >> transceiver... >> >> 73 Chris G3XIZ >> >> > --0016e6dd9820557fd60483a4da8a Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Also, although it doesn't appear to be linked to that web page,= =A0=A0=A0ht= tp://www.g4jnt.com/JT4_Bcn.zip=A0=A0 Is a simpler piC code that genera= tes JT4 messages and outputs the=A0 data to a pair of l;ogic lines for dri= ving an external four frequency source.=A0=A0 JT4 and WSPR have a lot in= commonin within the data side of things; its just the number of symbols= and timing that is different. So you could try mixing and merging the PIC= code=A0to get what you need.
On 7 April 2010 13:29, Andy Talbot <andy.g4jnt@googlema= il.com> wrote:
=A0
You coud dive inside the PIC code, extract the WSPR generating routin= e and use it to drive the frequency determining part of your MH Rx.=A0=A0= It does require a GPS receiver (and uses the Motoloa binary protocol) =A0= to give the accurate timing info, but its virtually impossible to=A0send= WSPR without accurate timing anyway.
=A0
On 7 April 2010 13:16, Chris Osborn <g3xiz@= yahoo.co.uk> wrote:
LF,
=A0
Is there a fairly simple interface unit=A0which will enable me to
transmit=A0WSPR signals using my=A0home built MF TX ?
=A0
My TX has a=A0VCO / FSK facility but no audio inputs.
=A0
I've had a search of the internet but haven't yet found any= suitable circuitry.
All the articles I've viewed so far assume that one has an SSB tr= ansceiver...
=A0
73 Chris G3XIZ



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