Don,

There are actually a lot of hams that use Elecraft equipment on the 
VHF and higher bands with transverters.  It is almost a  given that 
operating microwave ham radio involves hauling equipment up high on a 
big hill or mountain.  This operation is typically also very 
weak-signal operation where software is utilized for either exotic 
digital modes or using sw for enhanced super CW reception.  Thus the 
KX3 (small-light-but fully capable) will, I predict, be used for such 
ham activity where a laptop is also convenient due to size/weight.

I do agree that an external USB connected soundcard is most likely 
the solution.  In fact I use that solution in my home station with a 
table-top computer (have two: emu0202 and Delta-44).

I recently took our laptop to a ham club meeting intending to play a 
DVD for the program and my soundcard is kaput - no sound out.  It is 
only a two year old Dell??

73, Ed - KL7UW

------------------------------

Message: 41
Date: Tue, 31 Jan 2012 17:44:54 -0500
From: Don Wilhelm <w3...@embarqmail.com>
Subject: Re: [Elecraft] KX3- laptops for I/Q
To: Brian Pepperdine <brianpepperd...@sympatico.ca>
Cc: elecraft@mailman.qth.net
Message-ID: <4f286ee6.2040...@embarqmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Brian,

My view of the operation on the gazebo or deck, etc. does not mesh in my
mind with use of the I/Q KX3 output.  I think the primary use would be
to support CWskimmer, but could also be used to support a panadapter
function.  While a panadapter may be nice in the gazebo, I anticipate
that the uses of the I/Q outputs will be better related to the home
station with greater than casual operating situations.

Those tools are used in serious operating situations rather than the
more casual operation that I envision will be done in the backyard,
gazebo or deck.  OK, that is my opinion, others may differ.

The problem with many laptops is that they do not provide stereo line-in
inputs.  If indeed that is the situation with your laptop, you will have
to use an external soundcard to make good use of the KX3 I/Q output.  If
your laptop has stereo line-level inputs, then you will only need the
application software.
This is NOT a KX3 consideration - the KX3 is providing the I/Q output,
this is a laptop computer problem in that stereo inputs are not
available in many laptops.

The solution that works is to use an external USB soundcard - but then
again, that is an extra piece of gear to cart around to the backyard,
gazebo or deck.  In my mind that reinforces my statement that such
operation is better planned for the home station rather than portable or
semi-portable operation away from the tools and resources of the home
station.

73,
Don W3FPR




73, Ed - KL7UW, WD2XSH/45
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