Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk01.r1000.mx.aol.com (Internet Inbound) with ESMTP id AF4AE380000BC; Tue, 10 Jul 2012 12:20:04 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Sod9X-0003Dw-Kz for rs_out_1@blacksheep.org; Tue, 10 Jul 2012 17:19:07 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Sod9X-0003Dn-1Q for rsgb_lf_group@blacksheep.org; Tue, 10 Jul 2012 17:19:07 +0100 Received: from smtpout3.wanadoo.co.uk ([80.12.242.59] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Sod9U-000776-Su for rsgb_lf_group@blacksheep.org; Tue, 10 Jul 2012 17:19:05 +0100 Received: from AGB ([2.26.28.231]) by mwinf5d45 with ME id YgK31j00D4zApc203gK4RE; Tue, 10 Jul 2012 18:19:04 +0200 Message-ID: <15E2251F27994E789B080A5D6FFFFC70@AGB> From: "Graham" To: References: <4FFA2783.9080906@kpnmail.nl> <1341854812.85253.YahooMailNeo@web171604.mail.ir2.yahoo.com> <1341915060.76392.YahooMailNeo@web171605.mail.ir2.yahoo.com> <1341923384.41558.YahooMailNeo@web171602.mail.ir2.yahoo.com> <4FFC2C4E.5090306@iup.uni-heidelberg.de> In-Reply-To: <4FFC2C4E.5090306@iup.uni-heidelberg.de> Date: Tue, 10 Jul 2012 17:19:03 +0100 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: > Op users 2B ? operator can choose the frequency where he transmits Yes , but each end of the link needs to have the same qrg , by convention , the frequency coded in the software is used to ensure maximum chance of intercept by other stations [...] 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 [80.12.242.59 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: ad4be66560ed407055baa7738753e104 Subject: Re: LF: OPERA Question Content-Type: multipart/alternative; boundary="----=_NextPart_000_0057_01CD5EC0.1AA9CD80" 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_40_50,HTML_MESSAGE, 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:419960416:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1db4054ffc56342527 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_0057_01CD5EC0.1AA9CD80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable > Op users 2B ? operator can choose the frequency where he transmits Yes , but each end of the link needs to have the same qrg , by = convention , the frequency coded in the software is used to = ensure maximum chance of intercept by other stations=20 Operation could be defined by carrier frequency , using a set = BFO offset , but 'dial set usb' is taken as the normal definition = , this was formulated at the start of wspr usage , where the = concept of a receive 'audio band' was introduced , being simpler = to define the dial frequency.. casual intercept is possible , as onyl 50% of the data is = required for a decode ( unlike ROS-MF data mode , where the = sync frame 'must' be decoded) but the search Rx must remain = stable for the remaining duration=20 G.. From: Stefan Sch=E4fer=20 Sent: Tuesday, July 10, 2012 2:21 PM To: rsgb_lf_group@blacksheep.org=20 Subject: LF: OPERA Question Opera experts,=20 I have a simple question to Opera. If the program keys a PTT of a PA = like a CW key and the operator can choose the frequency where he = transmits, what is the range of frequencies where a decode can be = expected from someone who set his RX to e.g. 477 kHz? Is it a USB = bandwidth, so maybe from 300...3000 Hz, i.e. 477.3...480 kHz?? Can i = completely free decide where i want to transmit on? And if someone decides to let Opera choose the transmit frequency in = that band (e.g. by using a HF TRX and a transverter), where does the = program usually transmit. Is is accidentially oder is the range much = more limited? 73, Stefan/DK7FC Am 10.07.2012 14:29, schrieb M0FMT:=20 Hi Graham I have found that if I run 24 Watts no body hears me. If I run one = Watt people hear me?? If I boost the 1 Watt rig to 4 Watts same rig = people don't hear me...... dohh! It may be RF into the Opera PIC keyer? = I will next time try screening the PIC keyer. But the thing is my PC = decodes everything.... why?? Any ideas? 73 es GL Pete M0FMT IO91UX From: M0FMT To: "rsgb_lf_group@blacksheep.org" =20 Sent: Tuesday, 10 July 2012, 11:11 Subject: Re: LF: OPERA MONITOR Now ? TNX FER RPRT Am now sending op4 on 500 at 1/2 intervals on the hour and 1/2 hour = very approx. Can you report please if available will try to keep it on = most of afternoon. 73 es GL Pete M0FMT IO91UX From: Graham To: rsgb_lf_group@blacksheep.org=20 Sent: Monday, 9 July 2012, 18:51 Subject: Re: LF: OPERA MONITOR Now ? Pete RX set 500.000 usb , running OP4 and WSPR rx at the = moment =20 GL !... G ..=20 From: M0FMT=20 Sent: Monday, July 09, 2012 6:26 PM To: rsgb_lf_group@blacksheep.org=20 Subject: LF: OPERA MONITOR Now ? Hi all While you are all testing Graham's theory on optimum band usage = could you report my OP4 transmissions. I am using the stand alone PIC = 'JNT designed Opera keyer switching my all Valve (Tube for our Cousins) = TX. Power now increased to four (4) Watts O/P from the original 1Watt = at the antenna up lead. Antenna up lead abt 40 ft x 128ft long E/W. from = IO91UX. 73 Pete M0fmt. 73 es GL Pete M0FMT IO91UX =20 =20 ------=_NextPart_000_0057_01CD5EC0.1AA9CD80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
> Op  users  2B ?
 
operator can choose the frequency where he transmits
 
Yes  , but  each  end of the  link  = needs =20 to  have the  same  qrg ,  by  convention , = the =20 frequency  coded  in the  software  is  used = to =20 ensure  maximum  chance of  intercept by = other stations=20
 
Operation  could  be  defined  by  = carrier =20 frequency  , using  a  set  BFO  offset , = but =20 'dial set  usb'  is  taken as the  normal  = definition ,=20 this  was  formulated  at the  start of  =20 wspr   usage , where the  concept of  a  = receive =20 'audio band'   was  introduced , being  simpler = to =20 define the  dial  frequency..
 
casual  intercept is  possible , as  = onyl   50% of=20 the  data  is  required  for  a  = decode  (=20 unlike  ROS-MF  data  mode , where  the  sync = frame=20 'must'  be  decoded) but the  search  Rx  = must =20 remain  stable  for the  remaining  duration
 
G..

From: Stefan = Sch=E4fer
Sent: Tuesday, July 10, 2012 2:21 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: LF: OPERA Question

Opera experts,

I have a simple question to Opera. = If the=20 program keys a PTT of a PA like a CW key and the operator can choose the = frequency where he transmits, what is the range of frequencies where a = decode=20 can be expected from someone who set his RX to e.g. 477 kHz? Is it a USB = bandwidth, so maybe from 300...3000 Hz, i.e. 477.3...480 kHz?? Can i = completely=20 free decide where i want to transmit on?
And if someone decides to = let Opera=20 choose the transmit frequency in that band (e.g. by using a HF TRX and a = transverter), where does the program usually transmit. Is is = accidentially oder=20 is the range much more limited?

73, Stefan/DK7FC


Am = 10.07.2012=20 14:29, schrieb M0FMT:=20
Hi Graham
 
I have found that if I run 24 Watts no body hears me. If I run = one Watt=20 people hear me?? If I boost the 1 Watt rig to 4 Watts same = rig people=20 don't hear me...... dohh! It may be RF into the Opera PIC keyer? I = will next=20 time try screening the PIC keyer. But the thing is my PC decodes=20 everything.... why?? Any ideas?
 
73 es GL Pete M0FMT IO91UX
From: M0FMT <m0fmt@yahoo.co.uk>
To: "rsgb_lf_group@blacksheep.or= g"=20 <rsgb_lf_group@blacksheep= .org>=20
Sent: Tuesday, = 10 July=20 2012, 11:11
Subject: Re:=20 LF: OPERA MONITOR Now ?

TNX FER RPRT
Am now sending op4 on 500 at 1/2 intervals on the hour and 1/2 = hour=20 very approx. Can you report please if available will try to keep it = on most=20 of afternoon.

73 es GL Pete M0FMT IO91UX
From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org= =20
Sent: Monday, = 9 July=20 2012, 18:51
Subject: Re:=20 LF: OPERA MONITOR Now ?

Pete
 
RX set  500.000  usb ,   = running  =20 OP4  and   WSPR  rx  at the  = moment =20
 
GL !... G ..

From: M0FMT
Sent: Monday, July 09, 2012 6:26 PM
To: rsgb_lf_group@blacksheep.= org=20
Subject: LF: OPERA MONITOR Now ?

Hi all
While you are all testing Graham's theory on optimum band = usage could=20 you report my OP4 transmissions. I am using the stand alone PIC = 'JNT=20 designed Opera keyer switching my all Valve (Tube for our Cousins) = TX.
Power now increased to four (4) Watts O/P from the original = 1Watt at=20 the antenna up lead. Antenna up lead abt 40 ft x 128ft long E/W. = from=20 IO91UX.
73 Pete M0fmt.
73 es GL Pete M0FMT = IO91UX
 

    =20 =




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