[amsat-bb] Re: DELFI decoded

[Bruce Robertson]

It is possible to tune for RASCAL by ear. I use the following steps:
1. Tune to find the frequency with the greatest s-meter reading
2. Listen to the tone part of the signal, not the raspy part, and aim
for a note much higher than a regular CW signal.
3. When the green sync light goes on in RASCAL, fine-tune to centre
the signal at 1600 Hz.

Does anyone know how narrow a SSB filter I can apply to this signal? I
have a TS-2000, which is quite adjustable. For now I'm using it wide
open. I know the centre signal is 1600 Hz, which is quite high. How
high/low do the sidebands go?

On Mon, May 5, 2008 at 12:47 PM, Viktor Kudielka
<viktor.kudielka at ieee.org> wrote:
> On Mon, May 05, 2008 at 10:00:30PM +0900, ji1izr/Masahiro SANADA wrote:
>  > Dear everyone,
>  >
>  > I finally decoded DELFI by RASCAL.
>  > It is very difficult to tune for decoding.
>  > I got only 2 packets.
>  >
>  > Masahiro Sanada
>  > JI1IZR
>  > ***************************
>  >         Masahiro Sanada
>  >              de ji1izr
>  >           Hiratsuka-city
>  >         Kanagawa,Japan
>  >      ji1izr_1975 at nifty.com
>  >           ji1izr at jarl.com
>  >         ji1izr at jamsat.or.jp
>  > web: http://ji1izr.atnifty.com/
>  > blog: http://ji1izr.air-nifty.com/
>  > ***************************
>
>  Masahiro-san,
>
>  For tuning a waterfall spectrum display is very, very useful.
>  I am running WSJT6 with the SpecJT window in parallel to RASCAL
>  and I copied during this first week nearly 1200 packets.
>  Vy 73,
>    Viktor OE1VKW
>  --
>  Viktor Kudielka
>  e-mail: viktor.kudielka at ieee.org,oe1vkw at amsat.org,oe1vkw at oevsv.at
>  S-mail: Peter Jordan Str.165  A-1180 Vienna AUSTRIA
>  Tel:+43-1-470-9342 URL: http://ostarrichi.ch/viktor/
>  AMSAT-NA LM-240;AMSAT-UK;AMSAT-DL;OeVSV
>
>
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