Jean,
I mis-spoke. I do not have the schematic for the KAT500. but the
circuit for the "RS-232" interface used in the XG3 has become sort of
the standard at Elecraft as far as I know. I initially said it went to
+5 volts, but after checking I see it can go to +9 volts. If your
Ardrino TTL compatible sink cannot accept +9 volts without damage, you
should use the RS-232 connection. It will work fine with relatively
short cables (but not the very long cables supported by real RS-232
interfaces).
73,
Don W3FPR
On 1/19/2014 6:14 PM, F4GXG wrote:
OK,
In fact I planned to use a MAX232 because I though that it was necessary
for the kat500.
At the end it seems that the kat500 is TTL compatible, so it should be
easier to connect with an Arduino.
If I am right, a direct connection should be possible, without MAX232.
Anyone to confirm?
73 Jean
73
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