[Lowfer] Modes, signaling, and data recovery

[Les Rayburn]

At 09:08 AM 2/14/02 -0500, you wrote:
>Les,
>
>There was a fairly definitive discussion of QRSS/Jason on the RSGB
>reflector, as I recall. Unfortunately, the message must be on my computer at
>home. I'll see if I can find it tonight.
>
>I believe the conclusion was that Jason would be similar to QRSS10 or so in
>terms of getting clear copy. Based on the experience that Dex and I have had
>with reception reports, I think that's pretty close to the mark. I certainly
>believe that WOLF works much better into the noise. For example, Dex never
>successfully copied my Jason signal, where he had almost instant results
>with WOLF. Based on a test at home on Tuesday night, I'd say that WOLF could
>provide at least one line of clear copy from a 27:12 minute recording at a
>signal level that would be "just" usable for QRSS60.
>
>While Dex and I are planning a WOLF QSO for this weekend (time not
>determined yet), a Jason QSO would be a far simpler and quicker thing, as
>the EU guys have demonstrated. So, I think Jason has a real place in our
>arsenal, but not for the very weak signal work.
>
>John Andrews


John,

Thanks for taking time to respond. I have a programmer friend who has
expressed that he is willing to tackle the WOLF software and try to
create a GUI interface for it. I'm going to try to obtain source
code and other materials from Stewart, if he is agreeable to having
someone else look into this.

The problem is that Troy (my programmer friend) is not a ham, so
he can get hung up on certain things. The other thing "lacking"
from WOLF is the inability to process signals in real time or
something approaching that. The basic protocol seems fine,
and it would seem that it might be possible to have the software
automatically detect signal levels and adjust processing
speeds accordingly.

For instance, in strong signal contacts, it would allow for near
real time QSO's while under the weakest conditions could
process for long periods of time to recover the data.

I'm actually kind of surprised that Alberto didn't choose to
expand on the work already done on WOLF rather than
trying to start from scratch with Jason.

I see that there is a need for both types of software within
the "LF toolkit". It would be great though if they could share
some of the same protocols.

Keep us posted on how the QSO goes. I'd like to attempt
some WOLF receptions of TAG as well.

73,

Les Rayburn, N1LF



Les Rayburn, director
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