I dont know why anyone would want to put the PSK signals down at the low end
of the 40 meter band, where it has been customary for CW stations to work
for decades. 7.030 is in the lower portion of the 40 meter subband where all
the classes can go for CW, and they should not have to share that with
digital ops, and vice versa. I can almost understand it, when Europe had
only 7.0-7.1, but with an expansion to 7.1 to 7.2, Europe and the US should
use 7.080 7.100 or there abouts, for digital operations. It would act as
somewhat of a buffer between CW and SSB. It would also make the 7.125-7.200
available for simplex operaitions between the US and the rest of the world,
getting away from the silly split operation we have been forced into for
decades. I realize that not all Europe can yet use the expanded portion,
but that is what we should be planning for with subbands, as soon as is
possible. Of course, as it now stands, the digital signals are almost as in
bad a shape (worldwide) as is SSB with neither area being able to work in
the others.
Danny Douglas N7DC
ex WN5QMX ET2US WA5UKR ET3USA
SV0WPP VS6DD N7DC/YV5 G5CTB all
DX 2-6 years each
.
QSL LOTW-buro- direct
As courtesy I upload to eQSL but if you
use that - also pls upload to LOTW
or hard card.
moderator [EMAIL PROTECTED]
moderator http://groups.yahoo.com/group/DXandTalk
----- Original Message -----
From: "Jose A. Amador" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, January 17, 2007 12:20 PM
Subject: Re: [digitalradio] Re: Trends in Frequencies for 40m Digi
Keyboarding
>
> I have worked quite a few DX stations on both 7035 and 7070.
>
> I see more long DX's on 7035....more USA stations on 7070.
>
> I see no Pacific area stations in any of those windows. I have worked
> Europe
> Africa and the Middle East on 7035.
>
> Jose, CO2JA
>
> Alan Tindal wrote:
>
> > Well Bonnie I don't know why your not hearing digi activity down at
> > 7.030 - 7.040. In a half hour listening down on those frequencies I
> > copied 24 different callsigns, in this part of the world all the digi
> > activity is between those frequencies.
> >
> > 73 Alan G3VLQ
> >
> > ----- Original Message ----- From: "Roger J. Buffington"
> > <[EMAIL PROTECTED] <mailto:barrister54%40socal.rr.com>> To:
> > <[email protected]
> > <mailto:digitalradio%40yahoogroups.com>> Sent: Wednesday, January 03,
> > 2007 3:19 AM Subject: Re: [digitalradio] Re: Trends in Frequencies
> > for 40m Digi Keyboarding
> >
> > > expeditionradio wrote:
> > >>
> > >>>
> > >> Considering USA's recent diminishment of the data subband segment
> > >> on 40 meters, the projected increase in the number of Extra
> > >> operators, the declining use of morse CW in the world, and the
> > >> increasing use of digital keyboarding, the trend is heading
> > >> toward more digital keyboarding being used in USA in the
> > >> 7020kHz-7040kHz part of the 40m band, especially for DXing. This
> > >> is compatible with bandplans and actual use of digi keyboarding
> > >> in the rest of the world. The newer keyboarding modes are able to
> > >> decode better than -13dB SNR, so this makes low power DXing a
> > >> reality for the average USA ham on 40 meters. Throughout most of
> > >> the world, 7040-7100kHz is filled with QRO SSB. The SSB QRM makes
> > >> 7040-7100kHz somewhat uncompatible with low power and weak signal
> > >> digi keyboarding DXing.
> > >>
> > >> 73 Bonnie KQ6XA
> > >
> > > The above is news to me. I rarely hear any digital signals on 40M
> > > much below 7.065. The bulk of keyboard digital activity seems to
> > > take place from about 7.069-7.075 or so. If there is a trend
> > > towards digital qsos down around 7020-7040 it is not discernible.
> > > It is true that SSB from countries that permit it around 7070 is
> > > sometimes a problem, but I sure haven't noticed a "trend" towards
> > > USA ham using the digi modes moving down around 7020-7040.
> > >
> > > de Roger W6VZV
>
>
>
>
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