Andy,
I believe that Lyle Koehler K0LR did a PIC implementation for WOLF
a number of years ago. I have an exciter with it incorporated but
unfortunately it was driven by an unstable source. Will see what
documentation I can dig up when I get home.
73 Warren K2ORS
On Mon, Feb 1, 2016 at 12:18 PM, Andy Talbot <[email protected]> wrote:
> I'm contemplating writing some PIC code to encode WOLF (the software) into a
> PIC to make a standalone beacon transmitter source. A generator for the
> rate 1/6 32 constraint length convolutional code will fit into a 16F628A
> chip without too much difficulty - I've already done it for JT4 and WSPR;
> it just needs more parallel shift registers and less message memory than
> those modes do.
>
> Looking back though the archives of various progs written over the years, I
> found one written back in 2010 that generates the bit pattern for a WOLF
> message. So back then, must have been thinking of doing something with
> WOLF but it never got beyond a basic coder. To be able to write that
> software I must have had the original source code by John / team or Wolf
> (the operator!) for the mode, but can't find it.
>
> Also have a bit of a conundrum - in that software I provided the option for
> interleaving the final data or not, but don't know if the current Wolf GUI
> software implements interleaving or not.
>
> This is the interleaving code I wrote back then (PowerBasic language,
> variables here are all long ints) but don't know if its currently
> implemented in the latest versions
>
> IF interlv THEN
> tempj = j
> SHIFT RIGHT tempj , 3
> PTR = k * 80 + (j AND 7) * 10 + tempj + i * 2
> ELSE
> PTR = k * 80 + j + i * 16
> END IF
> outdata(PTR) = b
>
>
> Is the WOLF source code available anywhere, and is interleaving implemented?
>
> Also, is there an option somewhere to generate a file or even a screen
> showing of the output bit pattern?
> Short of actually running WolfGUI with a test message, recording the output
> and comparing it with my generated sequence for the same message it's
> difficult to know if my software gives the right answers.
>
> Andy G4JNT
--
73 Warren K2ORS
WD2XGJ
WD2XSH/23
WE2XEB/2
WE2XGR/1
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