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[195.171.43.25]) by mx.google.com with ESMTP id ja9si1235407wic.46.2014.03.21.07.28.34 for ; Fri, 21 Mar 2014 07:28:35 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1WQzz6-0003MJ-8U for rs_out_1@blacksheep.org; Fri, 21 Mar 2014 13:59:44 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1WQzz5-0003M7-LQ for rsgb_lf_group@blacksheep.org; Fri, 21 Mar 2014 13:59:43 +0000 Received: from smtpout5.wanadoo.co.uk ([80.12.242.80] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.82) (envelope-from ) id 1WQzz3-000322-C7 for rsgb_lf_group@blacksheep.org; Fri, 21 Mar 2014 13:59:42 +0000 Received: from AGB ([2.27.191.68]) by mwinf5d69 with ME id gDzf1n00Q1UzhwJ03Dzfbb; Fri, 21 Mar 2014 14:59:40 +0100 Message-ID: From: "Graham" To: References: <1F4C507B9EAF47BF8ADEAAC733C0E989@AGB> <532A13B6.6030108@iup.uni-heidelberg.de> In-Reply-To: <532A13B6.6030108@iup.uni-heidelberg.de> Date: Fri, 21 Mar 2014 13:59:39 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. 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Content preview: Its difficult Stefan , in this case its a engineering beacon , that measures the path in terms of average signal and % fade , the s/n determines the max data rate the link will support and the % fade , indicates the interleaving requirements , interleaving bridges the qsb 'gaps' but , then slows the turn round time ..... better to have a good level of sensitivity and longer interleave on MF , as the time to send the message at 100% error free may seem longer , but , if bits are missed , then time is lost in re-tries .same with arq , repeats slow the transfer down [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [80.12.242.80 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 9eeaef25cbc091a07cc2ff31d4139552 Subject: Re: LF: It CW MAL , But not as most know it Content-Type: multipart/alternative; boundary="----=_NextPart_000_0041_01CF450D.CD37A0A0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_60_70,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY,MISSING_OUTLOOK_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 This is a multi-part message in MIME format. ------=_NextPart_000_0041_01CF450D.CD37A0A0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Its difficult Stefan , in this case its a engineering beacon , that = measures the path in terms of average signal and % fade ,=20 the s/n determines the max data rate the link will support and = the % fade , indicates the interleaving requirements , interleaving = bridges the qsb 'gaps' but , then slows the turn round time = ..... better to have a good level of sensitivity and longer = interleave on MF , as the time to send the message at 100% error = free may seem longer , but , if bits are missed , then time = is lost in re-tries .same with arq , repeats slow the transfer = down=20 Yes its exchanging call and s/n reports , linked to the psk-map = and other users as a complete system , that also seems to meet = the minimum requirements of a 'qso' =20 For a live qso =20 Version 1-4-1 supports 15 chrs plain text , and sends in 60 = seconds , using single tone , which can be used for a live = qso , enough to exchange info like ' I have a cat' etc , but = it needs round -20 -23 dB s/n to decode , which is simple to = reach on HF , reasonable on MF and not so easy on 136=20 You could reach levels over -20 into the Uk etc , but , the = problem is , how many stations do you see at over -20 in rx on = 136 ? Ros-mf-2 works at -24/25 dB s/n and is a full free running data = mode , mf-7 runs at the same speed as psk31 and is about 10/12 = dB lower s/n with interleave , and can be used upto 28 MHz .. but = is multi tone , so needs additional hardware =20 The Opera one4one file can be downloaded from : = https://groups.yahoo.com/neo/groups/O_P_E_R_A_/files, note , the coded = frequency is 500KHz , from the time it was developed , set 477 = usb now ! and there is no 136 allocation for qso ,if anyone = wants to try 2 way on 136 just use '500'k 73-G,=20 From: Stefan Sch=E4fer=20 Sent: Wednesday, March 19, 2014 10:01 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: It CW MAL , But not as most know it ...hmmm, and even like some CW QSOs heared on HF, just exchanging = callsings and report via internet? Automated report and serial number = via PC in 300 bpm, "5nn"? Not really CW, isn't it? 73, Stefan/DK7FC Am 19.03.2014 18:58, schrieb Graham:=20 It CW MAL , But not as most know it =20 Opera Op0.5 30 second TX cycle -20 dB s/n min decode=20 A Magic mode for the Magic band ! G, )) ZR6MS IK1NET 6m OPERA 8148 km 17:16:40=20 IK1NET ZR6MS 6m OPERA 8148 km 16:56:24=20 ZR6MS EB5BQC 6m OPERA 7771 km 17:32:24=20 EB5BQC ZR6MS 6m OPERA 7771 km 17:36:59=20 ------=_NextPart_000_0041_01CF450D.CD37A0A0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Its difficult Stefan , in this  case  its  a =20 engineering  beacon , that  measures  the   = path in=20 terms  of   average  signal  and  % = fade  ,=20
the  s/n determines  the  max data  rate =20 the  link  will  support and  the  % fade , = indicates=20 the  interleaving   requirements  , = interleaving =20 bridges the  qsb  'gaps'  but  , then  slows = the =20 turn  round  time  .....  better  to have a=20 good  level of  sensitivity  and  longer =20 interleave  on MF , as  the  time  to  send = the =20 message  at 100%  error  free may  seem  = longer  ,=20 but  , if  bits  are  missed  , then  = time =20 is  lost  in re-tries  .same with  arq ,=20 repeats   slow the  transfer  down
 
Yes  its  exchanging  call   and  s/n = reports=20 , linked to the  psk-map  and  other  users  as = a =20 complete system , that  also seems  to  meet the  = minimum=20 requirements   of  a  'qso' 
 
For a  live qso 
 
Version  1-4-1  supports   15  chrs  = plain=20 text  , and  sends  in 60  seconds   , = using =20 single  tone  , which  can be  used  for =20 a   live  qso    ,   = enough =20 to  exchange  info  like  ' I have a cat'  etc = ,=20 but  it needs    round  -20 -23  dB = s/n =20 to  decode  , which is  simple to  reach  on HF = ,=20 reasonable  on MF  and  not  so easy  on 136 =
 
You  could  reach  levels  over  -20 into=20 the  Uk etc , but  , the problem is  , how many =20 stations  do  you  see  at  over  = -20  in=20 rx  on 136 ?
 
 
Ros-mf-2   works  at  -24/25 dB s/n and  = is =20 a full  free  running  data  mode  , mf-7  = runs at=20 the  same  speed  as  psk31  and is  = about =20 10/12 dB lower s/n with  interleave  , and can be  = used =20 upto  28 MHz  .. but  is  multi tone , so = needs =20 additional  hardware 
 
The Opera  one4one  file  can be  = downloaded =20 from  :  https://gro= ups.yahoo.com/neo/groups/O_P_E_R_A_/files, =20 note , the  coded  frequency  is  500KHz , from = the =20 time  it was  developed  ,   set 477  = usb =20 now ! and there  is  no   136  allocation = for =20 qso  ,if anyone   wants to  try  2 way  on = 136=20  just  use  '500'k
 
73-G,
 
 
 

From: Stefan Sch=E4fer =
Sent: Wednesday, March 19, 2014 10:01 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: Re: LF: It CW MAL , But not as most know=20 it

...hmmm, and even like some CW QSOs heared on HF, just = exchanging=20 callsings and report via internet? Automated report and serial number = via PC in=20 300 bpm, "5nn"?
Not really CW, isn't it?

73, = Stefan/DK7FC

Am=20 19.03.2014 18:58, schrieb Graham:=20
It CW  MAL , But  not  as  most know it  =
 
Opera  Op0.5      30 second  = TX=20 cycle    -20 dB s/n min decode
 
A Magic  mode  for the  Magic band   = !
 
G, ))
 
 
ZR6MS IK1NET 6m OPERA 8148 km 17:16:40 IK1NET ZR6MS 6m OPERA 8148 km 16:56:24 ZR6MS EB5BQC 6m OPERA 7771 km 17:32:24 EB5BQC ZR6MS 6m OPERA 7771 km 17:36:59
 
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