[Elecraft] Sound card interface

[Dave G4AON]

Like Julian, I connect my K3 directly to my "on motherboard" sound card 
and it works great. I also connect to a proper RS232 serial port on my 
PC for rig control. If you use Ham Radio Deluxe and it's DM780 data mode 
program DM780 will display the real RF frequency, corresponding to the 
tones, of the K3 when operating on RTTY, etc. The K3 has built in 
transformer isolation for the rear panel line in/out sockets.

HRD will also link your K3 to other transceivers/receivers to track each 
other!

73 Dave, G4AON
K3/100 #80
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I hope to order a K3 next month and need to sell some equipment first.
Can I sell the Tigertronics SignaLink USB if I intend to connect the K3
directly to the computer sound card? Or is an intermediate interface
desirable?

Benson,K4GST