[Elecraft] Antenna tuners

[Don Wilhelm]

Walt and all,

Just one clarification (for the protection of your KAT100 and K2).

The KAT100 does not talk with any RS-232 signals.  It does connect to 
the K2 AUX I/O connector, but that is not rs-232 either - there are only 
3 RS-232 signal lines (RXD, TXD and signal ground) in the AUX I/O 
connector.  All the rest of the signals are K2 unique for communicating 
with the KAT100 (and remote KPA100 and/or KRC2).

This is a reminder that your K2 (and KAT100 and KPA100) can be damaged 
by connecting a regular computer serial cable to the AUX I/O connector.  
It is labeled AUX I/O for that very reason - it is NOT an RS-232 port.

Just because a serial cable will fit does not make it a serial port.

73,
Don W3FPR

waltk8cv4612amos at att.net wrote:
> snip
>
> I too have a KAT-100 and yes, it would be neat if that could be used 
> without the RS-232 connection to the K-2. Probably some way to trick 
> it into thinking it is connected to a K-2 :-)
>