Date: Sun, 28 Oct 2012 00:06:02 +0200
From: Steinar Aanesland <saanes@broadpark.no>
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To: rsgb_lf_group@blacksheep.org
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References: <k6h8pu+h1dq@eGroups.com> <508C2AC9.3010109@broadpark.no>
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 <CAHAQVWMqHmBZhfEF_h25PsRyOL87uViyKJqg=xgssz+_6WRVdw@mail.gmail.com>
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Subject: Re: LF: JT9: A New Digital Mode for MF and LF
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I will try to catch you Markus, although I do not have my best equipm=
ent
available today.

la5vna s





Den 27.10.2012 23:59, skrev Markus Vester:
> Currently testing JT9-2 on 137420, transmitting during even 2-minut=
e
> slots.
> =20
> 73, Markus (DF6NM)
>
> *From:* Roger Lapthorn <mailto:rogerlapthorn@gmail.com>
> *Sent:* Saturday, October 27, 2012 10:26 PM
> *To:* rsgb_lf_group@blacksheep.org <mailto:rsgb_lf_group@blacksheep=
.org>
> *Subject:* Re: LF: JT9: A New Digital Mode for MF and LF
>
> This is exciting news being a 2-way mode, especially as it is 9-FSK=
,
> so doesn't need a linear PA. With bandwidths as small as 0.4Hz for =
the
> long version, no-one will be complaining about how much bandwidth a=
ll
> this digital stuff takes. Unlike OPERA, the software will be well
> documented and open source.
>
> There is a danger that, with too many digital modes now available, =
the
> activity may be spread too thinly, a point Mal raised some time bac=
k I
> believe Somehow though I suspect JT9 will rapidly become the de-fac=
to
> digital mode on 472kHz and 136kHz.
>
> I hope that one of the internet databases - PSK Reporter I guess, o=
r
> perhaps an equivalent to WSPRnet - will be able to display JT9
> activity as this was one of the great bonuses with WSPR beaconing.
>
> I may give it a go on 500kHz next week.
>
> 73s
> Roger G3XBM
>
>
> On 27 October 2012 21:00, Stefan Sch=E4fer
> <Stefan.Schaefer@iup.uni-heidelberg.de
> <mailto:Stefan.Schaefer@iup.uni-heidelberg.de>> wrote:
>
>     Oh, now Joe has lifted the secret ;-)
>     He released the mode 2 days ago and a first update yesterday.
>
>     Now it really gets complex which mode to choose. WSPR, Opera, J=
T9...
>     But as a digital mode for LF i gues JT9-30 is the most promisin=
g
>     at all.
>
>     73, Stefan/DK7FC
>
>
>
>
> --=20
>  http://g3xbm-qrp.blogspot.com/
> http://www.g3xbm.co.uk
> https://sites.google.com/site/sub9khz/
> http://qss2.blogspot.com/
>
>


--=20
LA5VNA Steinar
loc:jo59jq
www.opera.no



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<html>
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    <meta content=3D"text/html; charset=3DISO-8859-1"
      http-equiv=3D"Content-Type">
  </head>
  <body text=3D"#000000" bgcolor=3D"#FFFFFF">
    <div class=3D"moz-cite-prefix"><br>
      <span id=3D"result_box" class=3D"" lang=3D"en"><span class=3D"h=
ps">I will
          try</span> <span class=3D"hps">to catch you</span> Markus, =
<span
          class=3D"hps">although I do not</span> <span class=3D"hps">=
have</span>
        my&nbsp;<span class=3D"hps"> best equipment</span> <span clas=
s=3D"hps">available
          today.</span></span><br>
      <br>
      la5vna s<br>
      <br>
      <br>
      <br>
      <br>
      <br>
      Den 27.10.2012 23:59, skrev Markus Vester:<br>
    </div>
    <blockquote cite=3D"mid:1CD1ED7C18E24EF1999E7C47A855EF7D@White"
      type=3D"cite">
      <meta http-equiv=3D"Context-Type" content=3D"text/html;
        charset=3Diso-8859-1">
      <meta content=3D"MSHTML 6.00.6000.17114" name=3D"GENERATOR">
      <div>Currently testing JT9-2 on 137420, transmitting during eve=
n
        2-minute slots.</div>
      <div>&nbsp;</div>
      <div>73, Markus (DF6NM)</div>
      <div>
        <div><br>
        </div>
        <div>
          <div><b>From:</b> <a moz-do-not-send=3D"true"
              title=3D"rogerlapthorn@gmail.com"
              href=3D"mailto:rogerlapthorn@gmail.com">Roger Lapthorn<=
/a> </div>
          <div><b>Sent:</b> Saturday, October 27, 2012 10:26 PM</div>
          <div><b>To:</b> <a moz-do-not-send=3D"true"
              title=3D"rsgb_lf_group@blacksheep.org"
              href=3D"mailto:rsgb_lf_group@blacksheep.org">rsgb_lf_gr=
oup@blacksheep.org</a>
          </div>
          <div><b>Subject:</b> Re: LF: JT9: A New Digital Mode for MF
            and LF</div>
        </div>
      </div>
      <div><br>
      </div>
      This is exciting news being a 2-way mode, especially as it is
      9-FSK, so doesn't need a linear PA. With bandwidths as small as
      0.4Hz for the long version, no-one will be complaining about ho=
w
      much bandwidth all this digital stuff takes. Unlike OPERA, the
      software will be well documented and open source.<br>
      <br>
      There is a danger that, with too many digital modes now availab=
le,
      the activity may be spread too thinly, a point Mal raised some
      time back I believe Somehow though I suspect JT9 will rapidly
      become the de-facto digital mode on 472kHz and 136kHz. <br>
      <br>
      I hope that one of the internet databases - PSK Reporter I gues=
s,
      or perhaps an equivalent to WSPRnet - will be able to display J=
T9
      activity as this was one of the great bonuses with WSPR beaconi=
ng.<br>
      <br>
      I may give it a go on 500kHz next week.<br>
      <br>
      73s<br>
      Roger G3XBM<br>
      <br>
      <br>
      <div class=3D"gmail_quote">On 27 October 2012 21:00, Stefan Sch=
&auml;fer
        <span dir=3D"ltr">&lt;<a moz-do-not-send=3D"true"
            title=3D"mailto:Stefan.Schaefer@iup.uni-heidelberg.de
            STRG + Klicken, um Verkn&uuml;pfung zu folgen"
            href=3D"mailto:Stefan.Schaefer@iup.uni-heidelberg.de"
            target=3D"_blank">Stefan.Schaefer@iup.uni-heidelberg.de</=
a>&gt;</span>
        wrote:<br>
        <blockquote class=3D"gmail_quote">Oh, now Joe has lifted the
          secret ;-)<br>
          He released the mode 2 days ago and a first update yesterda=
y.<br>
          <br>
          Now it really gets complex which mode to choose. WSPR, Oper=
a,
          JT9...<br>
          But as a digital mode for LF i gues JT9-30 is the most
          promising at all.<br>
          <br>
          73, Stefan/DK7FC<br>
          <br>
        </blockquote>
      </div>
      <br>
      <br>
      <br>
      -- <br>
      &nbsp;<a moz-do-not-send=3D"true" href=3D"http://g3xbm-qrp.blog=
spot.com/">http://g3xbm-qrp.blogspot.com/</a><br>
      <a moz-do-not-send=3D"true" href=3D"http://www.g3xbm.co.uk">htt=
p://www.g3xbm.co.uk</a><br>
      <a moz-do-not-send=3D"true"
        href=3D"https://sites.google.com/site/sub9khz/">https://sites=
.google.com/site/sub9khz/</a><br>
      <a moz-do-not-send=3D"true" href=3D"http://qss2.blogspot.com/">=
http://qss2.blogspot.com/</a><br>
      <br>
      <br>
    </blockquote>
    <br>
    <br>
    <pre class=3D"moz-signature" cols=3D"72">--=20
LA5VNA Steinar
loc:jo59jq
<a class=3D"moz-txt-link-abbreviated" href=3D"http://www.opera.no">ww=
w.opera.no</a></pre>
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