[Elecraft] Unhappy With Your KX3?

Joe Subich, W4TV lists at subich.com
Sat Aug 4 09:17:23 EDT 2012


> Elecraft is marketing the KX3 as a backpack AND desktop radio (with
> not available KXPA100 and KXAT100).

If Elecraft are marketing the KX3 as anything other than a trail radio
the design missed the mark by 5 km.  Given the under powered speaker,
lack of headphone amplifier, and lack of separate line in and line out
audio connections, the rig is severely lacking is the "home station"
department - particularly for digital (RTTY/PSK/JT65/etc.) operation.

Further, with a SIS-570 based local oscillator and direct conversion
the jury is still out as to whether the phase noise/reciprocal mixing
performance is sufficient for use in strong signal (receive) and high
power (> 10W) transmit environments.  Unless SiS have improved their
products greatly or Wayne has some magic in his implementation, I am
very concerned (witness the phase noise in the XG3).

73,

    ... Joe, W4TV


On 8/4/2012 6:59 AM, Oliver Dröse wrote:
>
> ----- Original Message -----
> From: "Jim Brown" <jim at audiosystemsgroup.com>
>> This radio is designed for backpacking, and for use with
>> earphones.  It is designed to maximize battery life.  It is NOT
>> primarily a desktop radio intended to be used with its internal speaker,
>> or even with a passive outboard speaker.
>
> Hi Jim,
>
> well, I would not agree on that points with you. Elecraft is marketing the
> KX3 as a backpack AND desktop radio (with not available KXPA100 and
> KXAT100). They also lay some emphazise on it being perfectly for newcomers,
> etc. So I expect it to work with the internal speaker in shack situations,
> too, not only with headphones. As I would expect from any other radio, too.
> But the KX3 does the job okay in the (quiet) shack, as long as you don't
> expect it to provide sound & loudness like a stereo system. ;-)
>
> 73, Olli - DH8BQA
>
>
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