Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-db01.r1000.mx.aol.com (Internet Inbound) with ESMTP id AFF1F3800008C; Mon, 2 Jan 2012 14:48:40 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rhnqn-00018B-To for rs_out_1@blacksheep.org; Mon, 02 Jan 2012 19:47:17 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rhnqm-000182-Gy for rsgb_lf_group@blacksheep.org; Mon, 02 Jan 2012 19:47:16 +0000 Received: from imr-ma04.mx.aol.com ([64.12.206.42]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Rhnqj-0001qk-T0 for rsgb_lf_group@blacksheep.org; Mon, 02 Jan 2012 19:47:16 +0000 Received: from mtaomg-mb04.r1000.mx.aol.com (mtaomg-mb04.r1000.mx.aol.com [172.29.41.75]) by imr-ma04.mx.aol.com (8.14.1/8.14.1) with ESMTP id q02JksoW027393 for ; Mon, 2 Jan 2012 14:46:54 -0500 Received: from core-dle005b.r1000.mail.aol.com (core-dle005.r1000.mail.aol.com [172.29.166.145]) by mtaomg-mb04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 5328CE000088 for ; Mon, 2 Jan 2012 14:46:54 -0500 (EST) References: <24EF41C85642406DBC109E6B63190CBD@AGB> To: rsgb_lf_group@blacksheep.org In-Reply-To: <24EF41C85642406DBC109E6B63190CBD@AGB> X-MB-Message-Source: WebUI MIME-Version: 1.0 From: f4dtl@aol.com X-MB-Message-Type: User X-Mailer: Webmail 35296-STANDARD Received: from 77.202.111.72 by webmail-d002.sysops.aol.com (205.188.181.93) with HTTP (WebMailUI); Mon, 02 Jan 2012 14:46:53 -0500 Message-Id: <8CE979E69891093-1254-3FC25@webmail-d002.sysops.aol.com> X-Originating-IP: [77.202.111.72] Date: Mon, 2 Jan 2012 14:46:54 -0500 (EST) X-AOL-SCOLL-SCORE: 0:2:388133184:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55,UNPARSEABLE_RELAY=0.001 Subject: Re : LF: OPERA The new CW / QRSS replacement data mode Content-Type: multipart/alternative; boundary="--------MB_8CE979E699E7D20_1254_8D018_webmail-d002.sysops.aol.com" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_70_80, HTML_FONTCOLOR_UNKNOWN,HTML_FONT_BIG,HTML_MESSAGE,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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:415194528:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40554f020a1834e8 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ----------MB_8CE979E699E7D20_1254_8D018_webmail-d002.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" First receptions here on 500 kHz: 19:33 P0AAA 500 Op2 +6 dB=20 19:27 P0AAA 500 Op2 -2 dB=20 18:39 P0AAA 500 Op2 +6 dB=20 18:30 P0AAA 500 Op2 -4 dB=20 18:17 PA3ABK 500 Op2 -20 dB=20 18:13 P0AAA 500 Op2 -2 dB=20 18:05 PA3ABK 500 Op2 -14 dB=20 F4DTL Nicolas -----E-mail d'origine----- De : Graham A: rsgb_lf_group Envoy=C3=A9 le : Lundi, 2 Janvier 2012 1:09 Sujet : LF: OPERA The new CW / QRSS replacement data mode All, =20 After some time in development the 136/500 version of the Opera da= ta mode is ready for experimental use .=20 =20 Download links are available from myself or Gary, G4WGT as the ver= sions may change , these may also change ,=20 =20 Users are invited to join the Opera yahoo group http://groups.yaho= o.com/group/O_P_E_R_A_/?yguid=3D131323118 =20 At the moment , spots are distributed to other OP users on line at t= he time ,. future intent is to link to the PSK-Reporting network and= for a HF version and possible limited QSO mode , allowing under = the noise qso's with a simple xtal tx=20 =20 There is a on line chat mode to facilitate tests etc=20 =20 The software is available for all , free to use ,=20 =20 Happy new year to all and good luck=20 =20 73-G ..=20 =20 =20 =20 =20 =20 =20 OPERA The new CW/ QRSS replacement data mode=20 =20 There is always the assumption that all armature radio stations ca= n effectively translate what ever new soundcard data mode that i= s coded to radio frequency.. =20 The question I posed was =C2=91What about those who cannot , and on= ly have CW transmission facility=C2=92s=C2=92? =C2=85 =20 Never did get a reply =20 So after a long exchange of emails , the concept of a serial data = mode that used only one tone , on/off keyed , with a eye on the qr= ss system, was finally discussed and coding work begun, an initial= statement that in software , could be achieved a lower level of de= tection than that required to produce a line on a spectrum plot set = the scene for a what was originally proposed to be a simple data = mode, turned into to a race to the noise floor. =20 =20 =20 OPERA=20 =20 Is a totally new Data / Beacon mode , profiled for the 136 and = 500 bands , with HF possibility=C2=92s later in the project . The b= eacon mode is the version under test at the moment.=20 =20 Opera was designed as an alternative to the QRSS transmission system= and provides for a limited number of characters to be transmitted by= a serial single keyed tone , as is QRSS or live CW, 6 at the = moment. =20 It is live =C2=91data=C2=92 mode and there is no requirement for ti= me synchronisation of the tx/rx station . =20 The mode can be transmitted by any transmitter SSB/CW , there bein= g provided a keyed tone and Comm. Port CW key interface =20 =20 There is a windows =C2=91gui=C2=92 interface and the requirement for= RX audio feed, based round 1500 Hz , Tx audio at 1500 Hz may also = be used to drive a audio/rf conversion , changes of Tx audio tone = prevent collisions, and the software scans for a slot of minimum noise = . to place the TX carrier in. =20 If the CW key option is used, then the Tx frequency is selected by th= e Tx master oscillator only. =20 Once a signal is decoded, the decode-spot is distributed to other web-conne= cted users, future development will link to the PSK-Reporting network= . =20 =20 OPERA is coded at the moment for 136 and 500 Khz and still under= development. =20 As a basic out line the system (at the moment) codes the six char= acters of the call sign and transmits them as a serial =C2=91pulse= =C2=92 train using either conventional audio to RF translation , or= by the use of a COM port and transistor keying cct that simply= replaces the CW key , =20 Reception, as the data is spread out along a time line , decoding = is completed during the final stages of the transmission , due to this= ,,it is not possible to include a receive progress monitor, howeve= r the system will track and decode multiple transmissions of both ti= me bases simultaneously=20 =20 =20 Transmit times are used to denote the mode =20 =20 500 Khz =20 =20 2 Minuets =20 16 Minuets =20 136 Khz=20 =20 8 Minuets =20 65 Minuets =20 =20 =20 S/N, The mode is capable of decoding under the noise level , beyond= that of WSPR or the ROS-MF-2 system with a maximum data loss of = 33% before the decode Fails. =20 Opera 2 similar to WSPR Opera 8 6dB better than WSPR. =20 Opera 65 9 dB better than Opera8,=20 =20 =20 =20 ----------MB_8CE979E699E7D20_1254_8D018_webmail-d002.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
First receptions here on 500 kHz:
 
19:33 P0AAA 500 Op2 +6 dB
19:27 P0AAA 500 Op2 -2 dB
18:39 P0AAA 500 Op2 +6 dB
18:30 P0AAA 500 Op2 -4 dB
18:17 PA3ABK 500 Op2 -20 dB
18:13 P0AAA 500 Op2 -2 dB
18:05 PA3ABK 500 Op2 -14 dB
 
F4DTL Nicolas



 
= -----E-mail d'origine-----
De : Graham <g8fzk@g8fzk.fsnet.co.uk>
A: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Envoy=C3=A9 le : Lundi, 2 Janvier 2012 1:09
Sujet : LF: OPERA The new CW / QRSS replacement data mode

All,
 <= /div>
After  some  time  in development  the  1= 36/500  version  of the  Opera  data  mode  i= s  ready  for  experimental  use . <= /SPAN>
 
Download  links  are  = available  from  myself  or  Gary, G4WGT  as the&n= bsp; versions  may  change  , these  may  also&nbs= p; change  ,
 
Users  are  invited  t= o  join the  Opera  yahoo   group  http://groups.yahoo.com/group/O_P_E_R_A_/?ygu= id=3D131323118
 
At the  moment , spots = ; are  distributed to  other  OP users  on line  a= t the time ,. future intent  is to  link   to  the=   PSK-Reporting  network and  for  a  HF version&n= bsp; and  possible  limited  QSO  mode , allowing&= nbsp; under  the  noise  qso's  with  a simple&nbs= p; xtal  tx
 
There  is a  on line  = chat  mode to  facilitate  tests  etc
 
The  software  is  ava= ilable  for  all  , free  to  use  , <= /SPAN>
 
Happy  new year  to  a= ll  and  good  luck
 
73-G ..
 
 
 
 
 
 
OPERA  T= he  new  CW/ QRSS  replacement   data mode
 
There  is  = always the  assumption= that  all   armature  statio= ns  can  effectively&nbs= p;  translate  wh= at  ever  new  soundcard  data  mode=   that  is  coded to  radio  = frequency..
 <= /div>
The  question&nb= sp; I posed was  =C2= =91What  about  those&nb= sp; who  cannot , and<= SPAN style=3D"mso-spacerun: yes">  only  have  CW transmission  facility=C2= =92s=C2=92? =C2=85
 <= /div>
Never did get a reply=
 <= /div>
So  after a = ; long  exchange  of emails , the  concept&nbs= p; of  a  serial&= nbsp; data  mode that<= SPAN style=3D"mso-spacerun: yes">  used only  one  tone  , on/off  keyed , with a  eye  on the  qrss  system,&n= bsp; was  finally  discussed  and  coding  work  begun, an=   initial  statem= ent  that in software , could=   be  achieved  a lower  level  of&n= bsp; detection  than t= hat  required to  produce a  line  on a=   spectrum  plot set the=   scene for  a  what  was  or= iginally  proposed to  be a  simple  data=   mode, turned into to  a  race to the  n= oise  floor.   
 <= /div>
 <= /div>
OPERA <= /div>
 <= /div>
Is  a totally&nb= sp;  new   D= ata  / Beacon  mode ,&nb= sp; profiled  for the<= SPAN style=3D"mso-spacerun: yes">  136  and  5= 00  bands  , with  = HF  possibility=C2=92s=    later  in the&nb= sp; project . The beacon mode is the version under test at the momen= t.
 <= /div>
Opera  was = designed  as an alter= native  to the  QRSS&nbs= p; transmission  syste= m and  provides  for a&n= bsp; limited  number o= f characters to  be  transmitted by   a  serial  single  keyed  , as  is  QRSS   or  live  CW, 6 at the  moment.
 <= /div>
It is  live = ; =C2=91data=C2=92 mode and  = there  is  no&n= bsp; requirement  for<= SPAN style=3D"mso-spacerun: yes">  time  synchronisation&n= bsp; of the  tx/rx  station .
 <= /div>
The  mode  = can  be  transmitted  by  any  transmitter  SSB/CW , there=   being  provided=   a  keyed tone  and   Comm.  Port  CW   ke= y interface 
 <= /div>
There  is  = a  windows =C2=91gui= =C2=92 interface   and  the  requirement for&nbs= p;  RX audio  fee= d,  based  round 1500 Hz , Tx  audio  at = 1500 Hz may  also  be&n= bsp; used to  drive  a  audio/rf conversion ,&= nbsp; changes  of  Tx  audio tone  prevent collisions, and the  software scans  for a  slot of minimum noise . to  place the  TX carrier  in.
 <= /div>
If the  CW key option is  used, then the = ; Tx frequency  is  selected  by the  Tx master oscillator  onl= y.
 <= /div>
Once a signal is deco= ded, the decode-spot is distributed to other web-connected   users, future development  will=   link to the  PS= K-Reporting  network .=
 <= /div>
 <= /div>
OPERA  i= s coded  at the  moment&= nbsp; for  136  and   and  still  und= er  development.
 <= /div>
As  a  basic  out  line = ; the  system (at the<= SPAN style=3D"mso-spacerun: yes">  moment) codes  the = ; six  characters  of the  call  s= ign  and  transmits = ; them as a  serial  =C2=91pulse=C2=92  train using  either  = conventional  audio  to&= nbsp; RF  translation<= SPAN style=3D"mso-spacerun: yes">  , or  by   the  use of  a&nb= sp; COM port  and  transistor  keying  cct  that  simply&n= bsp; replaces the CW key ,
 <= /div>
Reception, as the  data   is  spread  out along  a&n= bsp; time  line , deco= ding  is completed  during the  final  st= ages of the  transmission , d= ue to  this  ,,it  = is not  possible  to  include a  r= eceive  progress  monitor, however the  system = ; will  track and  decode  multiple transmissions  of  both tim= e  bases simultaneously
 <= /div>
 <= /div>
Transmit times are  used to  denot= e  the  mode  
 <= /div>
500 Khz 
 
2        Min= uets  
16      Minuets<= /SPAN>
 <= /div>
136 Khz
 <= /div>
8          Minuets  
65        Minuets
 =
 =
 
S/N, The  mode  is  capable = ; of  decoding  under the  noise level  <= /SPAN>, beyond  that  of=   WSPR  or the  ROS-MF-2   system with a  maximum  data  loss of  before  the  decode Fails.
 <= /div>
Opera 2     similar to WSPR

Opera 8     6dB= better than WSPR.
 
Opera 65   9 dB better than Opera8,
 <= /div>
 <= /div>
 <= /div>
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