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From: "Graham" <g8fzk@g8fzk.fsnet.co.uk>
To: <rsgb_lf_group@blacksheep.org>
References: <C3F731D3B3D442FDBAA8720F953F74A5@AGB> <F09855DF575643A69705E0C805514AC1@2a2d7ed321c6425> <E0F8753816EF48A5A08EA8B704F787EA@AGB> <4FFA2783.9080906@kpnmail.nl> <CC76ACE4114B46C287B68D45D8B20D19@AGB> <1341854812.85253.YahooMailNeo@web171604.mail.ir2.yahoo.com> <A590C5270A984DEFB1E0CDB5FA76DC51@AGB> <1341915060.76392.YahooMailNeo@web171605.mail.ir2.yahoo.com> <1341923384.41558.YahooMailNeo@web171602.mail.ir2.yahoo.com> <4FFC2C4E.5090306@iup.uni-heidelberg.de>
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Date: Tue, 10 Jul 2012 17:19:03 +0100
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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 [...]
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Subject: Re: LF: OPERA Question
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> 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 <m0fmt@yahoo.co.uk>
To: "rsgb_lf_group@blacksheep.org" <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 <g8fzk@g8fzk.fsnet.co.uk>
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
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Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 8.00.6001.19258"></HEAD>
<BODY style=3D"PADDING-LEFT: 10px; PADDING-RIGHT: 10px; PADDING-TOP: =
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<DIV>> Op users 2B ?</DIV>
<DIV> </DIV>
<DIV>operator can choose the frequency where he transmits</DIV>
<DIV> </DIV>
<DIV>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
</DIV>
<DIV> </DIV>
<DIV>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..</DIV>
<DIV> </DIV>
<DIV>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 </DIV>
<DIV> </DIV>
<DIV>G..</DIV>
<DIV style=3D"FONT: 10pt Tahoma">
<DIV><BR></DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A=20
title=3D"mailto:Stefan.Schaefer@iup.uni-heidelberg.de CTRL + Click =
to follow link"=20
href=3D"mailto:Stefan.Schaefer@iup.uni-heidelberg.de">Stefan =
Sch=E4fer</A> </DIV>
<DIV><B>Sent:</B> Tuesday, July 10, 2012 2:21 PM</DIV>
<DIV><B>To:</B> <A=20
title=3D"mailto:rsgb_lf_group@blacksheep.org CTRL + Click to follow =
link"=20
href=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org=
</A>=20
</DIV>
<DIV><B>Subject:</B> LF: OPERA Question</DIV></DIV></DIV>
<DIV><BR></DIV>Opera experts, <BR><BR>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?<BR>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?<BR><BR>73, Stefan/DK7FC<BR><BR><BR>Am =
10.07.2012=20
14:29, schrieb M0FMT:=20
<BLOCKQUOTE =
cite=3Dmid:1341923384.41558.YahooMailNeo@web171602.mail.ir2.yahoo.com=20
type=3D"cite">
<DIV=20
style=3D"BACKGROUND-COLOR: rgb(255,255,255); FONT-FAMILY: =
verdana,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt">
<DIV>Hi Graham</DIV>
<DIV> </DIV>
<DIV>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?</DIV>
<DIV> </DIV>
<DIV>73 es GL Pete M0FMT IO91UX<BR>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: rgb(16,16,255) 2px solid; MARGIN-TOP: 5px; =
PADDING-LEFT: 5px; MARGIN-LEFT: 5px">
<DIV style=3D"FONT-FAMILY: verdana,helvetica,sans-serif; FONT-SIZE: =
12pt">
<DIV=20
style=3D"FONT-FAMILY: times new roman,new york,times,serif; =
FONT-SIZE: 12pt">
<DIV dir=3Dltr><FONT size=3D2 face=3DArial><B><SPAN=20
style=3D"FONT-WEIGHT: bold">From:</SPAN></B> M0FMT <A=20
class=3Dmoz-txt-link-rfc2396E=20
=
href=3D"mailto:m0fmt@yahoo.co.uk"><m0fmt@yahoo.co.uk></A><BR><B><SP=
AN=20
style=3D"FONT-WEIGHT: bold">To:</SPAN></B> <A =
class=3Dmoz-txt-link-rfc2396E=20
=
href=3D"mailto:rsgb_lf_group@blacksheep.org">"rsgb_lf_group@blacksheep.or=
g"</A>=20
<A class=3Dmoz-txt-link-rfc2396E=20
=
href=3D"mailto:rsgb_lf_group@blacksheep.org"><rsgb_lf_group@blacksheep=
.org></A>=20
<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, =
10 July=20
2012, 11:11<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">Subject:</SPAN></B> Re:=20
LF: OPERA MONITOR Now ?<BR></FONT></DIV><BR>
<DIV id=3Dyiv262514213>
<DIV>
<DIV=20
style=3D"BACKGROUND-COLOR: rgb(255,255,255); FONT-FAMILY: =
verdana,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt">
<DIV><SPAN></SPAN></DIV>
<DIV>TNX FER RPRT</DIV>
<DIV>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.<BR><BR></DIV>
<DIV>73 es GL Pete M0FMT IO91UX<BR>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: rgb(16,16,255) 2px solid; MARGIN-TOP: 5px; =
PADDING-LEFT: 5px; MARGIN-LEFT: 5px">
<DIV style=3D"FONT-FAMILY: verdana,helvetica,sans-serif; =
FONT-SIZE: 12pt">
<DIV=20
style=3D"FONT-FAMILY: times new roman,new york,times,serif; =
FONT-SIZE: 12pt">
<DIV dir=3Dltr><FONT size=3D2 face=3DArial><B><SPAN=20
style=3D"FONT-WEIGHT: bold">From:</SPAN></B> Graham <A=20
class=3Dmoz-txt-link-rfc2396E=20
=
href=3D"mailto:g8fzk@g8fzk.fsnet.co.uk"><g8fzk@g8fzk.fsnet.co.uk></=
A><BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">To:</SPAN></B> <A =
class=3Dmoz-txt-link-abbreviated=20
=
href=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.org=
</A>=20
<BR><B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, =
9 July=20
2012, 18:51<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">Subject:</SPAN></B> Re:=20
LF: OPERA MONITOR Now ?<BR></FONT></DIV><BR>
<DIV id=3Dyiv262514213>
<DIV>
<DIV>Pete</DIV>
<DIV> </DIV>
<DIV>RX set 500.000 usb , =
running =20
OP4 and WSPR rx at the =
moment =20
</DIV>
<DIV> </DIV>
<DIV>GL !... G .. </DIV>
<DIV=20
style=3D"FONT: 10pt Tahoma; -x-system-font: none; =
font-size-adjust: none; font-stretch: normal">
<DIV><BR></DIV>
<DIV=20
style=3D"BACKGROUND: rgb(245,245,245); -moz-background-clip: =
border; -moz-background-origin: padding; -moz-background-inline-policy: =
continuous">
<DIV><B>From:</B> <A title=3Dm0fmt@yahoo.co.uk=20
href=3D"mailto:m0fmt@yahoo.co.uk" rel=3Dnofollow target=3D_blank=20
moz-do-not-send=3D"true" =
ymailto=3D"mailto:m0fmt@yahoo.co.uk">M0FMT</A> </DIV>
<DIV><B>Sent:</B> Monday, July 09, 2012 6:26 PM</DIV>
<DIV><B>To:</B> <A=20
title=3D"mailto:rsgb_lf_group@blacksheep.org CTRL + Click =
to follow link"=20
href=3D"mailto:rsgb_lf_group@blacksheep.org" rel=3Dnofollow =
target=3D_blank=20
moz-do-not-send=3D"true"=20
=
ymailto=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_group@blacksheep.=
org</A>=20
</DIV>
<DIV><B>Subject:</B> LF: OPERA MONITOR Now ?</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV=20
style=3D"BACKGROUND-COLOR: rgb(255,255,255); FONT-FAMILY: =
verdana,helvetica,sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 12pt"><SPAN>
<DIV>Hi all</DIV>
<DIV>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.</DIV>
<DIV>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.</DIV>
<DIV>73 Pete M0fmt.<BR></DIV></SPAN>
<DIV>73 es GL Pete M0FMT =
IO91UX<BR> <BR><BR> =20
=
</DIV></DIV></DIV></DIV><BR><BR></DIV></DIV></BLOCKQUOTE></DIV></DIV></DI=
V></DIV><BR><BR></DIV></DIV></BLOCKQUOTE></DIV></DIV></BLOCKQUOTE></BODY>=
</HTML>
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