[MRCA] Progrock 2 What IF board

[Wa6bbq at sdf.org]

I’m wondering if these things can be programmed with Mark and Space
frequencies and just FSK’d between the two with some simple digital logic
and a mechanical teletype.

Jason WA6BBQ

> Attach photo of my Progrock2 "What IF" board. The Edge connector was cut
> from a larger 32 pin connector. Dip switches are used for "Bank"
> selection and allow the board to output on  8  frequencies.  The output
> Photo Jack can be moved to any of the three CLK outputs. Power is a 9V
> battery.
> Blank PC soldering pads allow for playing   "What IF".  My next "What
> IF" board will have an additional dip switch for CLK output selection
> and increase the board output capability to 24 programmed frequencies. 
> TIP: The outputs (CLK) are not buffered  -  you have to add a capacitor
> in series. If the board looks a little ruff and like it was assembled
> late on a Saturday night in 45 minutes - you might be right.
> Z
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