[Elecraft] Need of an external sound card with the KX2

[Don Wilhelm]

Howard,

One downside to using an internal soundcard is that many have a higher 
noise level than external USB soundcards (the SignaLink is *not* among 
the quietest).
The second is that the internal (default) soundcard will be the one that 
produces the sounds used by your OS, and you certainly don't want those 
being transmitted over the air - but you can always turn off system 
sounds.  If your laptop contains a built-in microphone, make certain it 
is turned off as well when using the default soundcard or the room 
sounds and voices picked up by the microphone can be transmitted.

Other than the considerations above, the internal soundcard should work 
fine.

You do not need PTT, use VOX, it works fine - in fact, that is how the 
SignaLink develops its "PTT" output - it detects tones from the 
soundcard and activates PTT - VOX in the KX2/3 will accomplish the same 
thing.

73,
Don W3FPR


On 9/29/2016 5:01 PM, Howard Sherer wrote:
> I plan to do some light weight travel with my KX2 running JT65, JT9 etc in
> the future. Can I connect the audio in and out ports of the KX2 directly
> into my laptop or will I need an external device like a Signal Link. If not
> needed how will the software key the KX2?
>
>