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References: <4B5EC24A.22190.3F32A6@mike.dennison.ntlworld.com>
Date: Tue, 26 Jan 2010 10:45:55 +0000 (GMT)
From: SAM JEWELL <jewell@btinternet.com>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <4B5EC24A.22190.3F32A6@mike.dennison.ntlworld.com>
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Subject: Re: LF: Off topic: MS and EME
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Hi Mike,
CW is most definitely used for EME above 432MHz. Although JT65C is very ef=
fective on 1.3 and 2.3GHz, CW is still the preferred mode. This is mainly=
 due to a very strong pro CW attitude amongst many of the EME operators.=
 Having said that, the level of JT65C on 1.3GHz is VERY high relative to=
 the number of operators on EME overall. As you have probably seen, quite=
 small EME systems are capable of making successful QSOs even with low ERP=
 using this mode.=20
JT4G also works on EME. However, the poorer sensitivity of this mode (comp=
ared to JT65C) limits its use to the higher bands where libration can rend=
er JT65C unusable. The digital 'cw' mode developed for the 47GHz EME QSOs=
 is a bit different again and doesn't seem to have caught on to any great=
 extent. I can't remember its designation!
Hellschrieber has also been used in EME.

I hope this helps?

73 de Sam, G4DDK






________________________________
From: Mike Dennison <mike.dennison@ntlworld.com>
To: rsgb_lf_group@blacksheep.org
Sent: Tuesday, 26 January, 2010 10:22:02
Subject: LF: Off topic: MS and EME

Can anyone on this group tell me whether Morse is still used for EME=20
and/or Meteor Scatter enthusiasts, or does all activity now use=20
purpose-designed digital modes?

Please reply direct to:
mike.dennison@ntlworld.com

Mike, G3XDV
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

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<html><head><style type=3D"text/css"><!-- DIV {margin:0px;} --></style></h=
ead><body><div style=3D"font-family:arial,helvetica,sans-serif;font-size:1=
0pt"><div>Hi Mike,<br>CW is most definitely used for EME above 432MHz. Alt=
hough JT65C is very effective on 1.3 and 2.3GHz, CW is still the preferred=
 mode. This is mainly due to a very strong pro CW attitude amongst many of=
 the EME operators. Having said that, the level of JT65C on 1.3GHz is VERY=
 high relative to the number of operators on EME overall. As you have prob=
ably seen, quite small EME systems are capable of making successful QSOs=
 even with low ERP using this mode. <br>JT4G also works on EME. However,=
 the poorer sensitivity of this mode (compared to JT65C) limits its use to=
 the higher bands where libration can render JT65C unusable. The digital=
 'cw' mode developed for the 47GHz EME QSOs is a bit different again and=
 doesn't seem to have caught on to any great extent. I can't remember its
 designation!<br>Hellschrieber has also been used in EME.<br><br>I hope th=
is helps?<br><br>73 de Sam, G4DDK<br><br><br></div><div style=3D"font-fami=
ly: arial,helvetica,sans-serif; font-size: 10pt;"><br><div style=3D"font-f=
amily: arial,helvetica,sans-serif; font-size: 13px;"><font face=3D"Tahoma"=
 size=3D"2"><hr size=3D"1"><b><span style=3D"font-weight: bold;">From:</sp=
an></b> Mike Dennison &lt;mike.dennison@ntlworld.com&gt;<br><b><span style=
=3D"font-weight: bold;">To:</span></b> rsgb_lf_group@blacksheep.org<br><b>=
<span style=3D"font-weight: bold;">Sent:</span></b> Tuesday, 26 January,=
 2010 10:22:02<br><b><span style=3D"font-weight: bold;">Subject:</span></b=
> LF: Off topic: MS and EME<br></font><br>Can anyone on this group tell me=
 whether Morse is still used for EME <br>and/or Meteor Scatter enthusiasts=
, or does all activity now use <br>purpose-designed digital modes?<br><br>=
Please reply direct to:<br><a ymailto=3D"mailto:mike.dennison@ntlworld.com=
"   href=3D"mailto:mike.dennison@ntlworld.com">mike.dennison@ntlworld.com<=
/a><br><br>Mike, G3XDV<br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br><br></div><=
/div>
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