So if one owns a K3, does that match your concept (or the ARRL's) of
an SDR? How would YOU answer?
It is IMHO.
SDR means software defined, and the K3 is defined by software. Whatever
gets through the roofing filter is handled by DSP in transmit and receive.
This is quite different from PC-based, or open source, which is what
some folks seem to mean when by SDR.
Frankly, most HF radios introduced in the 21st century are SDR, and many
in the 90's. If it is IF (not AF) DSP, it is probably SDR.
How does the ARRL define SDR?
73,
Lyle KK7P
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