K3 Keying interface

[Julius Fazekas n2wn]

OK, This is interesting. Does this interface also
apply to CW keying from a serial or parallel port as
well? Assuming one isn't using K1EL or winKey or a
similar device?

I see an opportunity for a a nice SM kit for the FSK
interface ;o)

73,
Julius
n2wn

*"The K3 input is a general purpose input, not only an
"FSK for RTTY" input, so we tried to make the
interface levels general, too.

You could modify your K3 to make it an RS232 level
only input, or you could put a 2N3904 or 2N2222
transistor plus a series base resistor inside the
shell of the DE16 Accessory connector that you wire up
for your station. Or???

Lots of options :-)

73,

Lyle kK7P"*
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