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Subject:
From:
Colin McDonald <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sat, 24 Nov 2007 13:55:59 -0700
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digitalk doesn't appear to work with xp anymore.
The way digipan works, is that all signals are displayed on what is called
the water fall.
You can use the arrow keys to go to a specific signal on the water fall and
that signal will begin to be decoded and the text will appear on the screen.
These signals are in reality occuring on different frequencies within the
band width of the frequency you are on.
Say 14.070 can legally be used up to 6Kc wide, so you could have potentially
probably a few hundred signals, operating on different frequencies within
that pass band of 6Kilocycles.

With digipan, you see a visual indication of all signals within the filter
width you have selected, and you can select certain ones to listen to.  The
problem with jaws is that we do not have an  audio indication of the water
fall, so we have to manually attempt to locate the precise frequency that
any given signal is on.
If you are even 50HZ off, the program will not decode the signal properly
and you'll get jibberish.
the bigger problem is that there can be many many strong signals on at once,
and you can't physically use your ears to figure out where to set the
software to listen...and there may be several qso's occuring on one
frequency at a time as well.
On top of this, jaws will keep starting over from the beginning of any text
that does come in, jibberish or not, so you must either keep clearing the rx
screen or halting jaws to try and locate the signal...which is done when you
start hearing words that make sence.
with digitalk, it wouldn't speak text until it was being clearly decoded, in
otherwords, until the software locked on a specific frequency.  You could
have it auto seek until it found a signal and it would snap to that signal
right away so there was no searching and trial and error about it.
If you didn't want to auto seek, you could set which filter width to listen
for and find signals within that band width as well...all of this is easily
done with digipan, except its all visual and not availible with jaws.

If your lucky, you can get digipan to work by happening to land on the right
frequency for the software to decode.

this is prime territory for a decent scripter, or someone familiar with the
protocalls and programming to design another peace of software that jaws can
work with.
if digipan had an accessible auto seek function, it would be very easy to
use.
73
Colin, V A6BKX

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