Bob,
Actually, the K3 is an SDR by all definitions I know about regarding
SDR. The functions of the radio can be modified by firmware download.
The fact that the K3 down converts to the 8 MHz IF range and then down
converts further to 15 kHz to inject the signal into an A to D converter
where the DSP is processed does not detract from the fact that it is an
SDR. Yes, there is no PC involved, the processor is inside the radio.
The KX3 is similar, the processor is inside the radio, but the
conversion is from the RF frequency direct to baseband - in other words,
the KX3 DSP is processed around zero frequency (unless the 8 kHz offset
is invoked).
So, I do not know your definition of SDR, but mine is quite literal -
the function of the radio can be controlled by software (firmware if you
choose). Download new firmware and the behavior of the K3 (and the KX3)
can be modified. I believe my view is consistent with the generalized
definition of SDR. Many hams will not agree because they believe that
without a PC connected, it is not an SDR.
73,
Don W3FPR
On 12/22/2012 8:08 PM, Bob wrote:
Not sure if this is a good question to ask or not?
I have a K3, actually 2 and I absolutely LOVE Them!
I also have a KX3 and I may even love it a little more than my K3s.
I am totally happy with both rigs, and if these are the last rigs to ever
be added to the Elecraft list of excellent transceivers, I would say that
Elecraft would go down in the history books as the Premier Pioneer in High
End Amateur transceivers.
However, ever since getting the KX3, I have had this question gnawing at
the back of my head and I am dying to ask, but FIRST PLEASE NOTE, I am
totally content and I really couldn't ask for more than what is presented
in both the K3 and KX3 radios.
OKAY, Here Goes!
Since the K3 is not an SDR (the way of the future) and the KX3 is, IS THERE
A K4 in the future?
Again, a desktop 100 watt self contained SDR like the KX3 but in a K3 type
form factor?
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