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Geri
800 Hz B/W ... May be this is something
'Wolf' can code for you ? a b/w compression
/ expansion module in SL , to limit the tx b/w
to 800 Hz must be possible to divide
by 3 and mult by 3 with a linear
shift as well ?
G..
Sent: Wednesday, January 02, 2013 8:36 PM
Subject: Re: LF: 477 A local SSB chat band ?
Hi,
I kind of like the idea of an SSB channel. I just
pulled out the conditions of my first secial license for 160m from 1973 or 1974.
That said 1815 to 1835 kHz with 10 Watts in CW, additionally one SSB channel for
1832 to 1835 kHz, so why not trying this on 630m, too? Here in Germany we are
currently limited to 800 Hz bandwidt but I am sure we can sork towards a special
license under certain conditions such as daylight operation only .. sounds
good to me!
Vy 73
Geri, DK8KW
----- Original Message -----
Sent: Wednesday, January 02, 2013 8:58
PM
Subject: Re: LF: 477 A local SSB chat
band ?
Hi Pete
Its quite obvious that the allocation
is quite able to support
normal armature activity , and why not ?
its no longer a experimental allocation , its just the
same as 10 or top band , un expected
results today though ! ssb sounds odd ,
may be as the path is stable , sstv
? must be a narrow mode , and the
'new' digital voice is 2KHz , but that
requires a linear Tx path
As for the band edge
I'm straining to find a
engineering reason , that wspr and
qrss has decided to run mid band ? Im sure users
had a reasonable discussion at the introduction of
the band , to place the modes at the edges
, with live cw a the lower portion
? its well know that these long
carrier modes cause disruption to other
band users and are well placed at
the band edges , 'vanity beacons' is a
term I have seen noted in referral, as occupancy
increases , by users not linked or even aware
of discussions taking place on these groups ,
i'm sure there will be problems leading
to the introduction of band plan's , for
some the plans form part of the licence
conditions ..
Is Opera a vanity system ? , actually no, it
compliments ros- data mode in that the ave
s/n readings can be used to determine if
a path will support the data mode ,
each having the same averaging s/n
reading taken along the time line ,
73 -G..
Sent: Wednesday, January 02, 2013 6:21 PM
Subject: Re: LF: 477 A local SSB chat band ?
Hi all
One SSB channel at the high edge of the band only used during
daylight hours no DXing!
73 es GL es HNY Pete M0FMT IO91UX
Quite intriguing propagation on this
'new' band
From some unexpected early 600 mile
+ Opera decodes last night , to
several wspr TA decodes , [G8's
again ..] to today's
test with Gary using USB-SSB voice ,
Where as at 1300z we
had 5/9 signals each way as
expected over 25 miles , GI3PDN
Ray , called on CW , to give a report
of 5/9 across the Irish Sea , some
100 miles for our two signals , his CW
also in the 5/9/9 region, one wonders
how far inland the signals travelled ?
After a short 3 way qso, we closed the
test round 1330z , may not of been
quite as sociable after dark , but
with a small Ae , 40 x 70 ft iv L
and 35 ft Top load vert , 50
watts pep , results defiantly superior
to say 160 mtrs using the same
Ae's
73 -G
G0NBD
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