[amsat-bb] Re: DELFI decoded

[Fred VE3FAL]

The only decode I got the other day was by manually tuning as well and I was
able to SYNC enough to get one line of information, but the sat drops out of
the way fast and had no more. Nothing heard during the last pass at 1735z...

Fred
VE3FAL

Now to mark down the seeds frequency and few of the others and see if I get
decode.


-----Original Message-----
From: amsat-bb-bounces at AMSAT.Org [mailto:amsat-bb-bounces at AMSAT.Org] On
Behalf Of Bruce Robertson
Sent: Tuesday, May 06, 2008 11:05 AM
To: Viktor Kudielka
Cc: AMSAT
Subject: [amsat-bb] Re: DELFI decoded

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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