Return-Path: X-Spam-DCC: paranoid 1233; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_30_40,HTML_MESSAGE,RATWARE_GECKO_BUILD autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id t9BJOfNh031085 for ; Sun, 11 Oct 2015 21:24:41 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZlMBp-0004pM-3K for rs_out_1@blacksheep.org; Sun, 11 Oct 2015 20:21:49 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZlMBo-0004p6-Hl for rsgb_lf_group@blacksheep.org; Sun, 11 Oct 2015 20:21:48 +0100 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.86) (envelope-from ) id 1ZlMAm-0006zs-OB for rsgb_lf_group@blacksheep.org; Sun, 11 Oct 2015 20:21:47 +0100 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id CAB0020A3B for ; Sun, 11 Oct 2015 21:20:28 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3nYtJX5Hjdz5vN3 for ; Sun, 11 Oct 2015 21:20:28 +0200 (CEST) Message-ID: <561AB67C.7030707@posteo.de> Date: Sun, 11 Oct 2015 21:20:28 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <5616A99E.509@gmx.com> <561706C2.8090600@posteo.de> <56185720.9070500@posteo.de> <56193181.5040108@posteo.de> In-Reply-To: <56193181.5040108@posteo.de> X-Scan-Signature: ad8e5dd63f7497fd9d71d15044db2e2b Subject: Re: LF: QRSS/DFCW transmission with a Raspberry Pi Content-Type: multipart/alternative; boundary="------------050108010303070301020902" 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-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 4337 This is a multi-part message in MIME format. --------------050108010303070301020902 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Dimitris, I have another idea: [ -F ] Factor . Factor is a Multiplier for the output frequency and DFCW shift. Factor = 1 if not set otherwise in the command line. You know, some PAs use an /2 or /4 divider (e.g. CD4013) to generate a opposite phase rectangular signal with a perfect 50% duty cycle. I have modified the wspr.c file with a (fixed) factor 4 to 4xwspr.c. This works very well... 73, Stefan Am 10.10.2015 17:40, schrieb DK7FC: > > There could/should be a number of options like > > - [ -B ] beacon mode > - [ -E 0500 ] stop time is 05:00 UTC > - [ -S 0.2 ] 0.2 Hz DFCW-shift (if this parameter is not used in the > command line, i would choose a certain ratio of DFCW shift and dot > length. Then the DFCW shift is set automatically) > - [ -R 2.5] Dash/Dot ratio is 2.5 for QRSS (3 without setting this > parameter) > > So, for example: > > sudo ./[mode] [dot length] [frequency] [parameters] [message] > > e.g. > > *sudo ./dfcw 90 136172.5 -B -E 0630 "dk7fc "* > > => transmits a DFCW-90 beacon on 136.1725 kHz until 06:30 (system > time) with the message "dk7fc " > --------------050108010303070301020902 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Dimitris,

I have another idea:

[ -F ] Factor . Factor is a Multiplier for the output frequency and DFCW shift. Factor = 1 if not set otherwise in the command line. You know, some PAs use an /2 or /4 divider (e.g. CD4013) to generate a opposite phase rectangular signal with a perfect 50% duty cycle.

I have modified the wspr.c file with a (fixed) factor 4 to 4xwspr.c. This works very well...

73, Stefan

Am 10.10.2015 17:40, schrieb DK7FC:

There could/should be a number of options like

- [ -B ] beacon mode
- [ -E 0500 ] stop time is 05:00 UTC
- [ -S 0.2 ] 0.2 Hz DFCW-shift (if this parameter is not used in the command line, i would choose a certain ratio of DFCW shift and dot length. Then the DFCW shift is set automatically)
- [ -R 2.5] Dash/Dot ratio is 2.5 for QRSS (3 without setting this parameter)

So, for example:

sudo ./[mode] [dot length] [frequency] [parameters] [message]

e.g.

sudo ./dfcw 90 136172.5 -B -E 0630 "dk7fc "

=> transmits a DFCW-90 beacon on 136.1725 kHz until 06:30 (system time) with the message "dk7fc "

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