Hi guys!I think I will use the interface I built for ft817 by modifying
cabling. It comes from G4ILO (thanks a lot Julian) and I added a couple of
insulation transformers 600/600 Ohm.It works fine and it's really cheap as
for Usb soundcard I payed 5 $. This way I have a Vox actuated PTT and I
to receive delivery of my KX3 for development.
What would folks like this to look like? How long should cords be?
73, Ed
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Date: Sat, 17 Mar 2012 20:29:41 +0100
From: Frode LA2RL la2romeol...@gmail.com
Subject: [Elecraft] KX3 and Data Mode Interface
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Subject: [Elecraft] KX3 and Data Mode Interface
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The K3
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From: W7GJ, Lance w...@q.com
Sender: elecraft-boun...@mailman.qth.net
Date: Sun, 18 Mar 2012 16:10:37
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 and Data Mode Interface
Hi Ed,
I also need the same thing, as I am sure many people do. I need to figure out
a
solution
The K3 Manual says clearly that the Line In and Line Out signals are
isolated with transformers and that these ports therefore can be connected
directly to a computer sound card.
I have read carefully through the KX3 Preliminary Manual but I have not
found any information about isolation of the
Frode,
The KX3 does not contain isolation transformers - there is not adequate
room inside.
Yes, you may connect to the mic and phone jacks directly, and that can
sometimes be done if the computer and the KX3 are properly bonded
together (see K9YC's papers). If the bonding does not cure hum
Don,
Many thanks for the quick reply. I think I will play safe and get an
interface box from the very beginning. I also suspected that there would be
no room for isolation transformers in the KX3. It is nevertheless amazing
what the box contains. I am looking forward to play with this beauty.
Those little 1:1 audio isolation transformers come in several flavors
600 Ohm and 10K Ohm if memory serves me right.
Which would be needed if we had to resort to using them?
OK, back in my hole,
Ron, KU7Y
SOWP 5545M
Arizona Outlaws Contest Club
Brenda, AZ (Winter)
Caldwell, ID (Summer)
On 03/17/2012 02:37 PM, KU7Y wrote:
Those little 1:1 audio isolation transformers come in several flavors
600 Ohm and 10K Ohm if memory serves me right.
Which would be needed if we had to resort to using them?
OK, back in my hole,
I wonder if the following would do?
It will. I ordered those transformers from digikey ($17 each) and built
my own soldered directly to the cables. Works very well.
73
Greg
AB7R
On 3/17/2012 2:59 PM, Jussi Eloranta wrote:
On 03/17/2012 02:37 PM, KU7Y wrote:
Those little 1:1 audio isolation transformers come in several
I should have mentioned in my last post that I have not used one of these
transformers yet.
I just connected the audio out on the FT-1000 MP right to the sound card in
the computer. That was to give a RTTY contest a try. There was no
problems, so I guess my grounding was working OK.
But I
On 3/17/2012 2:37 PM, KU7Y wrote:
Those little 1:1 audio isolation transformers come in several flavors
600 Ohm and 10K Ohm if memory serves me right.
No transformer is needed if simple chassis-to-chassis bonding is done
between computer and rig. I am finding though that a good USB audio
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