Jean,
I am a little confused by your questions (it may be a language thing).
I assume that you have the K2 "twins" which have the KPA100 and KAT100
in the separate EC2 enclosure (I do not know what an "ECS-box" might be,
so I am making assumptions).
If you want computer control of the K2 Twins, you must have the KIO2
mounted in the base K2, and the computer connection must connect to the
KIO2 in the base K2 (the RS-232 function of the KPA100 is not operative
in the K2 Twins configuration).
The digital interface is a separate item from the computer RS-232
control interface.
A standard PC soundcard will work just fine for digital modes. Yes, it
is best to use audio transformers to isolate the PC noise from the
digital audio stream.
If you are asking about something different from my assumptions, please
ask again -- there may be a language problem here.
73,
Don W3FPR
On 1/23/2015 11:04 PM, Behiels jean-Pierre wrote:
Hi Elecraft members;
I already have build a K2/10.
My next project is to homebrew a digital interface for general purpose
with external soundcard into a separated Elecraft ECS2 enclosure.
Is there anyone who could give my some addresses and advise witch kind
of soundcard is usuable for this purpose ?
I presume a standard PC soundcard is not really useful for build-in in
a ECS-box without any PC support(connectors and so on)
You must now that I must solder my DC transceiver PC isolation circuit
to this sound card as well.
I will work with some small audio transformer and some opto couplers
for the DC isolation between both (transceiver and PC USB port).
I look forward to receive some idees and any good designs and some
usefull information around.
I hope someone could help my with my request.
Kindly regards Jean ON4AEF.
*E-mail : **[email protected] <mailto:[email protected]>***
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