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=-0.7 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, 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 t9AFnPbY027820 for ; Sat, 10 Oct 2015 17:49:26 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ZkwHj-0007tB-JW for rs_out_1@blacksheep.org; Sat, 10 Oct 2015 16:42:11 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ZkwHi-0007t2-T0 for rsgb_lf_group@blacksheep.org; Sat, 10 Oct 2015 16:42:10 +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 1ZkwGg-00044n-M9 for rsgb_lf_group@blacksheep.org; Sat, 10 Oct 2015 16:42:09 +0100 Received: from dovecot03.posteo.de (dovecot03.posteo.de [172.16.0.13]) by mout01.posteo.de (Postfix) with ESMTPS id 48A3E209AC for ; Sat, 10 Oct 2015 17:40:50 +0200 (CEST) Received: from mail.posteo.de (localhost [127.0.0.1]) by dovecot03.posteo.de (Postfix) with ESMTPSA id 3nY9TZ0wrzz5vN7 for ; Sat, 10 Oct 2015 17:40:49 +0200 (CEST) Message-ID: <56193181.5040108@posteo.de> Date: Sat, 10 Oct 2015 17:40:49 +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> In-Reply-To: X-Scan-Signature: 77f21f6e11988daa90d969af432362a6 Subject: Re: LF: QRSS/DFCW transmission with a Raspberry Pi Content-Type: multipart/alternative; boundary="------------090502000802010706030602" 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: 4315 This is a multi-part message in MIME format. --------------090502000802010706030602 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Dimitris, Am 10.10.2015 02:21, schrieb Dimitrios Tsifakis: > Hi Stefan, > > new callsign and new QTH indeed. I am now outside the city, the > nearest house is about 300m away from mine. I also have some space, > about 20 hectares, so expect more traffic on LF/MF :-) > Wow, great great great!! Take use of the possibilities that you have! I'm still inspried by this WSPR spot: *2013-02-16 16:44 VK1DSH 0.475078 -29 0 QF44ms 50 F6CNI/BEV JN19qb 16832 310 BEV! *That's it. Can you build a beverage antenna on your new QTH? Maybe 3 Lambda on 630m? :-) You know, i would do so! :-) Also it is very impressing what M0LMH receives in daytime here. The location and antenna construction is very important on MF i think. I belive there are effects that are important and that or that's importance we don't know yet! > OK, so the beginning of each software project is the gathering of > requirements. Let me hear your suggestions. So far, we have the > following: > > - works on raspberry pi with linux and uses GPIO4 (pin 7) > - does normal QRSS and DFCW QRSS > - command line > -? > Well, the C-file for WSPR is already existing. So the Pi can be told to transmit on a certain frequency for a certain duration and then on another frequency for another durartion and so on. So QRSS /DFCW could be "just" some adaption/modification to the existing code. 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 " That would be great!!! :-) More ideas? 73, Stefan > I will probably reuse some existing code, let me think about that. > > 73, Dimitris VK2COW/VK1SV/SV1DET > > > 2015-10-10 11:09 GMT+11:00 DK7FC: > >> Hi Dimitris, >> >> Oh, you have a new callsign! Did you move your QH also? >> >> Well, i've searched a bit more and didn't find a suitable tool. Strange! >> So, if you really are an expert on programming, i would be happy to use your >> software! Will you adapt it to the existing tools, using them and modifying >> them? >> >> Looking forward... >> >> 73, Stefan >> >> >> Am 09.10.2015 02:24, schrieb Dimitrios Tsifakis: >> >>> Hi Stefan, >>> >>> if there is nothing else out there, I would be happy to write a simple >>> c program to do this... >>> >>> 73, Dimitris VK2COW >>> >>> >>> 2015-10-09 11:13 GMT+11:00 DK7FC: >>> >>> >>>> Hi all, >>>> >>>> I'm trying to find a (or the "best") software for the Raspberry Pi to >>>> transmit QRSS/DFCW on LF/MF. Since it's easily possible to transmit WSPR, >>>> it >>>> cannot be a problem to transmit QRSS. >>>> >>>> Which is the easiest to handle software? And recommendations? >>>> >>>> I imagine the tx command could be for example sudo ./qrss 3 137700 cq >>>> dk7fc >>>> jn49ik k >>>> >>>> 73, Stefan >>>> >>>> PS: It has to be a console usable software, no GUI! >>>> >>>> >>> >>> >> >> > --------------090502000802010706030602 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Dimitris,

Am 10.10.2015 02:21, schrieb Dimitrios Tsifakis: 
Hi Stefan,

new callsign and new QTH indeed. I am now outside the city, the
nearest house is about 300m away from mine. I also have some space,
about 20 hectares, so expect more traffic on LF/MF :-)
Wow, great great great!! Take use of the possibilities that you have!
I'm still inspried by this WSPR spot:
2013-02-16 16:44      VK1DSH      0.475078      -29      0      QF44ms     50      F6CNI/BEV      JN19qb      16832     310

BEV! That's it. Can you build a beverage antenna on your new QTH? Maybe 3 Lambda on 630m? :-) You know, i would do so! :-)

Also it is very impressing what M0LMH receives in daytime here. The location and antenna construction is very important on MF i think. I belive there are effects that are important and that or that's importance we don't know yet!

OK, so the beginning of each software project is the gathering of
requirements. Let me hear your suggestions. So far, we have the
following:

- works on raspberry pi with linux and uses GPIO4 (pin 7)
- does normal QRSS and DFCW QRSS
- command line
-?
Well, the C-file for WSPR is already existing. So the Pi can be told to transmit on a certain frequency for a certain duration and then on another frequency for another durartion and so on. So QRSS /DFCW could be "just" some adaption/modification to the existing code.
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    "


That would be great!!! :-)
More ideas?

73, Stefan

I will probably reuse some existing code, let me think about that.

73, Dimitris VK2COW/VK1SV/SV1DET


2015-10-10 11:09 GMT+11:00 DK7FC <selberdenken@posteo.de>:
  
Hi Dimitris,

Oh, you have a new callsign! Did you move your QH also?

Well, i've searched a bit more and didn't find a suitable tool. Strange!
So, if you really are an expert on programming, i would be happy to use your
software! Will you adapt it to the existing tools, using them and modifying
them?

Looking forward...

73, Stefan


Am 09.10.2015 02:24, schrieb Dimitrios Tsifakis:
    
Hi Stefan,

if there is nothing else out there, I would be happy to write a simple
c program to do this...

73, Dimitris VK2COW


2015-10-09 11:13 GMT+11:00 DK7FC<selberdenken@posteo.de>:

      
Hi all,

I'm trying to find a (or the "best") software for the Raspberry Pi to
transmit QRSS/DFCW on LF/MF. Since it's easily possible to transmit WSPR,
it
cannot be a problem to transmit QRSS.

Which is the easiest to handle software? And recommendations?

I imagine the tx command could be for example sudo ./qrss 3 137700 cq
dk7fc
jn49ik k

73, Stefan

PS: It has to be a console usable software, no GUI!
--------------090502000802010706030602--