[Elecraft] Rig Interface for Digital

[Edward R Cole]

Reading all the advice given, it becomes obvious that there is not 
one "perfect" interface.  But, I use the simplest one:  two shielded 
radio shack stereo audio cables to/from the soundcard (mine are 
external to the computer) and the original USB/RS-232 adapter cable 
from Elecraft.  That runs my digital sw and spectrum display programs.

I did have to add a second USB/RS-232 cable because of a unique 
situation where I needed RTS/DTR to connect to a separate com-port 
from the one with RXD/TXD.  This is a special control issue for eme, 
which is probably of little application for the majority of readers 
(I have two programs running that need dedicated com-ports):
http://www.kl7uw.com/station%20layout.htm

Filters:
K3: FL1=13-KHz for FM/AM, FL2=2.8-KHz SSB, FL-3=open, FL-4=400-Hz CW, FL-5=open
KRX3: FL-2=2.8-KHz general purpose for diversity Rx

I don't live in a high RF density ham neighborhood so this is 
adequate.  DSP filtering handles the main operating needs.

That works well for me, but your modes, hardware accessories, and sw 
may dictate a different configuration.  Mine is always in process of 
change so I expect to make ongoing reconfiguration of my station.

73, Ed - KL7UW
http://www.kl7uw.com
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