Mike,
The Elecraft gear is software defined radio, but the software is not
open source and not available for modification by the user.
Software changes may be requested of the developers, and some may be
implemented if the user audience that will use those added functions is
sufficiently large. So yes, the firmware is proprietary to Elecraft,
and not open source.
The K3 and K3S are hybrid designs which have an analog front end with
down-conversion to 15kHz where the DSP software is processed.
The KX3 and KX2 use a quadrature mixer which brings the IF directly to
an IF that is then processed in DSP.
You will find that the Elecraft gear to be among the top performers for
receive (see the Sherwood listings). The K3, K3S, KX3, KX2 and the pure
analog K2 are quite high on the Sherwood ratings.
If you are looking for superior receive characteristics, then Elecraft
may be your answer. If you are looking for open source firmware with
the resultant "user defined" functions, then you might want to look at
the HDSDR which will allow open source alterations - https://openhpsdr.org/.
The Elecraft reflector will reject any images and other forms of HTML.
This reflector is plain text only. If you want others to view images,
put them in a publically available place and provide a link in your post.
73,
Don W3FPR
On 5/11/2017 10:38 PM, Mike Parkes wrote:
Hello Elecraft group,
I don't own anything made by Elecraft yet however I have been shopping for
an HF rig to get active again (I have been off the air for a number of
years for personal reasons). I really like Elecraft's products, and I am
intrigued by the 'software definable radio' possibilities in this new breed
of amateur radio equipment design.
I have a question though, related to what can or can't be done with an
Elecraft SDR transceiver*. Is the source "code" able to be modified by the
End User?* Or is it proprietary in some way so that only those at Elecraft
can touch the code? I have been monitoring this list for while now and have
yet to read anything like, "hey check out this cool change I made on the
Elecraft KX3 code! Before the radio only did this - now it does this!" and
next thing you know there are some very cool user modified code being made
available. Like, the ham being able to add their call into the code? (see this
example
<https://spacemodels.files.wordpress.com/2017/05/customized-display-kx3.jpg>
)
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