To: rsgb_lf_group@blacksheep.org
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From: N1BUG <paul@n1bug.com>
Message-ID: <ee94894f-df19-724e-bf5a-f3c65d4012f5@n1bug.com>
Date: Sun, 9 Apr 2017 18:48:10 -0400
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Subject: Re: LF: DF2JP in the Eu slot - DF6NM too
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Status: O

I am running Opera on 136 only. To run on 477 would require me to 
stop monitoring WSPR2 to QSY the receiver, which I do not want to do.

I see, thanks for explaining that the speed and decoder is linked to 
band. Now I understand.

I don't know if my spots will be uploaded. I have been asked to 
enable this, but I do not see a setting to enable uploads.

73 Paul


On 04/09/2017 08:36 AM, Graham wrote:
> Ok Paul,
>
> Are you running  477  and  136  , or  136 only ?
>
> The decoder mid band is  set in the  Configure >> Rig   Panel ,  select
> 1500 or  2000, same  panel,  If your  rx only ,  set  ptt   VOX , then  its
> inert ,
>
> One of features , is the  mode speed and  decoder  are linked to   'BAND' ,
> stability requirements  increase  as  the  time  extends,  older versions
> did  have dual speeds  for  each band , but  the  latest  version are
> single  speed, stability requirements  increase  with the  longer modes ,
>
> Afc is  provided  and  no real advantage is gained  from ultra stable
> transmissions or repetitive  same  frequency  cycles , [ other  than a cross
> check  to  decode  frequency  as  validation for a correlation spot ]
> Opera is designed to  be run  on  normal 'ham' kit
>
> Dual modes  are  provided for  477 and  136  'only',  one-pass  data  decode
> is  provided  for  all  bands ,  on 136  this  functions  to  ~ -40 dB s/n
> in 2.4 Khz b/w  , after that , deep search [ correlation]  detection against
> call  sign  list is  automatically  engaged as a  second  chance, providing
> additional  -5 -6 db  , same for the  477 Op8   band ,  first data  decode ,
> then  detection against  call  list .
>
> Example ,[ day time 477k]   dual mode's  ,  first  spot , failed to decode ,
> reported  by  second deep search , second  spot  full decode  at  -28 dB [
> average]  F 6%  indicates  6% of the  256 data bits ,lost  or  at  -3 dB
> above the min decode level , the  spots indicate which mode is  reported
>
> 11:41    477 M0HGU de PA7EY Op8 Deep Search -32 dB in Amsterdam
> 12:00    477 M0HGU de PA7EY Op8 -28 dB F:6% in Amsterdam
>
> Yes , spots are distributed  to  other  users  via the  web , also a   chat
> function  , call  to  call  and  broadcast  mode ,  psk-map  spots are  also
> unloaded directly , though , showing on the  map  is not as reliable  as  in
> the  past ,  the  mode is  listed in ADIF
>
>
> 73-G,
--
Paul
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