[NTLK] key shortcut on Frank's web page

I have a quick question. I've got a Freekey here <http://www.pda-
soft.de/body_freekey.html> and am trying to get it working with my
120s here. However, I cannot figure out what this means:

{Strg} + {Alt} + {F1}: Switch to ASCII mode
{Strg} + {Alt} + {F2}: Switch it to scan mode

Specifically, I cannot figure what the "Strg" key is! Is that the
Control key? shift key? what is it? In any case, nothing I press
works. :-( Anybody have one and understand what to do to get this
thing to work? I have plugged everything in, and turned it all on, to
the best of my knowledge, even pushing the blue button on the FK.
stumped.... Oh, and it's an Apple Pro ADB keyboard. Maybe too big to
be driven by Freekey (on mains, not battery)? TIA

-- 
-Jon Glass
Krakow, Poland
"If your pictures aren’t good enough, you’re not close enough."  -   
Photojournalist Robert Capa
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