[Elecraft] KAT-100 completed

[Don Wilhelm]

Tom,

The suggestion from Jim Brown was to replace the cable to the computer 
with twisted pair cable (CAT-5 will do, but shielded twisted pair is 
better)  Both RXD and TXD should be paired with a conductor going to pin 
5 (Signal Ground).

If you do not have a computer connected, the computer cable (the RS-232 
part of the AUX I/O) is NOT your problem.

The AUX I/O signals between the K2 and the KAT100 are usually not a problem.

Is the KPA100 mounted on the K2 or in the EC2 enclosure with the KAT100? 
  If you have the KPA100 mounted on the K2, remove the right side panel 
and dress (fold) the ribbon cable and the speaker cable up into the area 
above the Control Board.  If left to its own resources, the signals on 
the ribbon cable can couple into the KSB2 board.

73,
Don W3FPR

Tom Zeltwanger wrote:
> Just completed and tested a KAT-100 in the EC2 enclosure. Like the K2 and the 
> KPA-100, I turned it on, and everything worked fine. 
> 
> I think I may be seeing some digital noise getting into my K2 from the addition 
> of the outboard tuner. I saw some discussion recently about noise from the RS-
> 232 cable in the K2. Have others seen any problems with noise when adding the 
> KAT-100? If so, any tips on minimizing or eliminating it?
>