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LF: OPERA 136 up date

To: <[email protected]>
Subject: LF: OPERA 136 up date
From: "Graham" <[email protected]>
Date: Thu, 5 Jan 2012 14:14:22 -0000
Importance: Normal
Reply-to: [email protected]
Sender: [email protected]
OPERA   136   up date  
 
The  latest  version  as of   4/1/2012
 
 
Changes  , time , audio band and mode  select.
 
TX Time  
 
Op 65  is  now  replaced  with  Op31
 
Op8  12%  time  reduced  ~ Op 8
 
Frequency  bands 136  mode only
 
Previous  , two  sub bands  divided   OP8 & OP64 ,  replaced with   one audio-band
 
Audio  frequency  band now   1300 Hz  to  1500 Hz
 
Suggested  136.000 KHz   USB     dial  frequency.
 
S/N  performance  expected
 
OP8   -32dB       Op31 -38dB   S/N   Mean  values  (not pk) 
 
 
Note  -  Tx tone  frequency  is  determined  , when  using  audio  drive , by  a  scanning  routine , the  Tx  carrier  is  placed  in a  clear frequency  slot  , at  each  Rx/Tx  transit.
 
GL All
 
73 -G..


 
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