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From: Bob Raide <rjraide@hotmail.com>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Date: Thu, 5 Dec 2013 14:13:56 -0500
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Subject: RE: LF: Looking for 73 kHz band modes to try...
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G=2C et all=3B
I would like to try OPDS32 and see what happens.  I don't see OP32 availabl=
e for 73 band but am sure it could be[?] =20
Maybe that might get the maximum number of receive stations participating??=
?
Bob
=20
From: g8fzk@g8fzk.fsnet.co.uk
To: rsgb_lf_group@blacksheep.org
Date: Thu=2C 5 Dec 2013 18:28:17 +0000
Subject: Re: LF: Looking for 73 kHz band modes to try...

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Big  problem  is the  s/n Bob =0A=
=2C=0A=
 =0A=
 qrss   and Op64  are  in  =0A=
the   -43   may be  -49 dB   s/n  with =0A=
the  op-wspr correction  =2C =0A=
Op64 is a  true  data  mode  =2C =0A=
your  going  need  to  be  a good  + 20 +  25 =0A=
dB  stronger  for  any  other data mode to  decode =2C =0A=
this side of the  pond =2C the Opera  coding  offers  =2C a 3 =0A=
way  decode   split =2C =0A=
 =0A=
If  you get a  couple  of OP64 runs  =0A=
and  'local'  decodes  =2C  the  s/n  levels  =0A=
will  give a  good  indication as  to  what  =0A=
the  path  will  support =2C the  s/n level  is the  =0A=
average  along  the  time  line =2C  I think the  =0A=
ros-mf-2  data  mode  at  -24 -27   dB  =2C =0A=
about the  same as  wspr-2  is the  lowest  =0A=
s/n   keyboard  -  keyboard data  mode   =2C =0A=
next  up  mfsk  =2C but  you  need  =0A=
3K  b/w  =0A=
 =0A=
The  only  other  system  is  =0A=
'Wolf'  =2C that's a  linear  psk  mode =2C which I think =0A=
will  go  via your  valve  tx =2C there  are a  few =0A=
on here  that  will  remember how to  use  it  =0A=
  ..=0A=
 =0A=
Other  than  that ?  any  one  =0A=
?=0A=
 =0A=
73 -G=2C =0A=
=0A=

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=0A=
From: Bob Raide =0A=
Sent: Thursday=2C December 05=2C 2013 5:55 PM=0A=
To: rsgb_lf_group@blacksheep.org =3B Bob Raide =0A=
=0A=
Subject: LF: Looking for 73 kHz band modes to =0A=
try...=0A=

=0A=
Any comments regarding different modes to try would be =0A=
appreciated. =20
QRSS60 has done well but time to move on with one or a =0A=
couple digi modes might be worth trying-Bob=2C WG2XRS/4 NY
 		 	   		  =

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<body class=3D'hmmessage'><div dir=3D'ltr'>G=2C et all=3B<BR>I would like t=
o try OPDS32 and see what happens.&nbsp=3B I don't see OP32 available for 7=
3 band but am sure it could be[?]&nbsp=3B <BR>Maybe that might get the maxi=
mum number of receive stations participating???<BR>Bob<br>&nbsp=3B<BR><div>=
<hr id=3D"stopSpelling">From: g8fzk@g8fzk.fsnet.co.uk<br>To: rsgb_lf_group@=
blacksheep.org<br>Date: Thu=2C 5 Dec 2013 18:28:17 +0000<br>Subject: Re: LF=
: Looking for 73 kHz band modes to try...<br><br>=0A=
=0A=
=0A=
<style><!--=0A=
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=0A=
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<div><font face=3D"Arial">Big&nbsp=3B problem&nbsp=3B is the&nbsp=3B s/n Bo=
b =0A=
=2C</font></div>=0A=
<div><font face=3D"Arial"></font>&nbsp=3B</div>=0A=
<div><font face=3D"Arial">&nbsp=3Bqrss&nbsp=3B&nbsp=3B and Op64&nbsp=3B are=
&nbsp=3B in&nbsp=3B =0A=
the&nbsp=3B&nbsp=3B -43&nbsp=3B&nbsp=3B may be&nbsp=3B -49 dB&nbsp=3B&nbsp=
=3B s/n&nbsp=3B with =0A=
the&nbsp=3B op-wspr correction&nbsp=3B =2C </font></div>=0A=
<div><font face=3D"Arial">Op64 is a&nbsp=3B true&nbsp=3B data&nbsp=3B mode&=
nbsp=3B =2C =0A=
your&nbsp=3B going&nbsp=3B need&nbsp=3B to&nbsp=3B be&nbsp=3B a good&nbsp=
=3B + 20 +&nbsp=3B 25 =0A=
dB&nbsp=3B stronger&nbsp=3B for&nbsp=3B any&nbsp=3B other data mode to&nbsp=
=3B decode =2C =0A=
this side of the&nbsp=3B pond =2C the Opera&nbsp=3B coding&nbsp=3B offers&n=
bsp=3B =2C a 3 =0A=
way&nbsp=3B decode &nbsp=3B split =2C </font></div>=0A=
<div><font face=3D"Arial"></font>&nbsp=3B</div>=0A=
<div><font face=3D"Arial">If&nbsp=3B you get a&nbsp=3B couple&nbsp=3B of OP=
64 runs&nbsp=3B =0A=
and&nbsp=3B 'local'&nbsp=3B decodes&nbsp=3B =2C&nbsp=3B the&nbsp=3B s/n&nbs=
p=3B levels&nbsp=3B =0A=
will&nbsp=3B give a&nbsp=3B good&nbsp=3B indication as&nbsp=3B to&nbsp=3B w=
hat&nbsp=3B =0A=
the&nbsp=3B path&nbsp=3B will&nbsp=3B support =2C the&nbsp=3B s/n level&nbs=
p=3B is the&nbsp=3B =0A=
average&nbsp=3B along&nbsp=3B the&nbsp=3B time&nbsp=3B line =2C&nbsp=3B I t=
hink the&nbsp=3B =0A=
ros-mf-2&nbsp=3B data&nbsp=3B mode&nbsp=3B at&nbsp=3B -24 -27&nbsp=3B&nbsp=
=3B dB&nbsp=3B =2C =0A=
about the&nbsp=3B same as&nbsp=3B wspr-2&nbsp=3B is the&nbsp=3B lowest&nbsp=
=3B =0A=
s/n&nbsp=3B&nbsp=3B keyboard&nbsp=3B -&nbsp=3B keyboard data&nbsp=3B mode&n=
bsp=3B &nbsp=3B=2C =0A=
next&nbsp=3B up&nbsp=3B&nbsp=3Bmfsk&nbsp=3B =2C but&nbsp=3B&nbsp=3Byou&nbsp=
=3B need&nbsp=3B =0A=
3K&nbsp=3B b/w &nbsp=3B</font></div>=0A=
<div><font face=3D"Arial"></font>&nbsp=3B</div>=0A=
<div><font face=3D"Arial">The&nbsp=3B only&nbsp=3B other&nbsp=3B system&nbs=
p=3B is&nbsp=3B =0A=
'Wolf'&nbsp=3B =2C that's a&nbsp=3B linear&nbsp=3B psk&nbsp=3B mode =2C whi=
ch I think =0A=
will&nbsp=3B go&nbsp=3B via your&nbsp=3B valve&nbsp=3B tx =2C there&nbsp=3B=
 are a&nbsp=3B few =0A=
on here&nbsp=3B that&nbsp=3B will&nbsp=3B remember how to&nbsp=3B use&nbsp=
=3B it&nbsp=3B =0A=
&nbsp=3B ..</font></div>=0A=
<div><font face=3D"Arial"></font>&nbsp=3B</div>=0A=
<div><font face=3D"Arial">Other&nbsp=3B than&nbsp=3B that ?&nbsp=3B any&nbs=
p=3B one&nbsp=3B =0A=
?</font></div>=0A=
<div><font face=3D"Arial"></font>&nbsp=3B</div>=0A=
<div><font face=3D"Arial">73 -G=2C </font></div>=0A=
<div style=3D"font: 10pt/normal Tahoma=3B font-size-adjust: none=3B font-st=
retch: normal=3B">=0A=
<div><br></div>=0A=
<div style=3D"background: rgb(245=2C 245=2C 245)=3B">=0A=
<div><b>From:</b> <a title=3D"mailto:rjraide@hotmail.com CTRL + Click to fo=
llow link" href=3D"mailto:rjraide@hotmail.com">Bob Raide</a> </div>=0A=
<div><b>Sent:</b> Thursday=2C December 05=2C 2013 5:55 PM</div>=0A=
<div><b>To:</b> <a title=3D"mailto:rsgb_lf_group@blacksheep.org CTRL + Clic=
k to follow link" href=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_grou=
p@blacksheep.org</a> =3B <a title=3D"lowfer@mailman.qth.net" href=3D"mailto=
:lowfer@mailman.qth.net">Bob Raide</a> =0A=
</div>=0A=
<div><b>Subject:</b> LF: Looking for 73 kHz band modes to =0A=
try...</div></div></div>=0A=
<div><br></div>=0A=
<div dir=3D"ltr">Any comments regarding different modes to try would be =0A=
appreciated.&nbsp=3B <br>QRSS60 has done well but time to move on with one =
or a =0A=
couple digi modes might be worth trying-Bob=2C WG2XRS/4 NY<br></div></div> =
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