Re: LF: 477 A local SSB chat band ?

[M0FMT <m0fmt@yahoo.co.uk>]

Hi Graham Geri and all

 

Warren has seen SSB first hand on the MF QRG and we have this side also.There was an SM station (call sign forgotten?) in the early days of 500 that added an SSB anouncement on his beacon and it worked well.

 

To my spec. :- "One SSB channel at the high edge of the band only used during daylight hours no DXing!" add " Use VOX, no monologuing allowed" to be a laissez faire operation no band plan, but fair play!.73 es GL es HNY Pete M0FMT IO91UX

From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Wednesday, 2 January 2013, 20:48
Subject: Re: LF: 477 A local SSB chat band ?

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..

From: Holger 'Geri', DK8KW - DI2BO - W1KW

Sent: Wednesday, January 02, 2013 8:36 PM

To: rsgb_lf_group@blacksheep.org

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 -----

From: Graham

To: rsgb_lf_group@blacksheep.org

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..

 

 

 

 

 

 

 

From: M0FMT

Sent: Wednesday, January 02, 2013 6:21 PM

To: rsgb_lf_group@blacksheep.org

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

From: Graham <g8fzk@g8fzk.fsnet.co.uk>
To: rsgb_lf_group@blacksheep.org
Sent: Wednesday, 2 January 2013, 16:13
Subject: LF: 477 A local SSB chat band ?

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