[Elecraft] K3 DSP processor speed

[Wayne Burdick]

The K3's DSP code is written in very efficient assembly language. It executes quickly, because it doesn't need the lengthy library-routine calls typical of the C or C++ code written for GHz-clock DSPs. The code is also extremely compact. 

The crystal oscillator frequency is not a direct indicator of clock speed. An on-chip PLL multiples it to a much higher frequency. And again, efficient DSP code written for 48-kHz IF/12-kHz AF sample rates doesn't require a lot of time to execute.

This same philosophy applies to the K3's microcontroller. One result is that a K3 draws far less current in receive mode than most desktop transceivers.

The K3's NR has a lot of flexibility (with 32 settings), and some experimentation is required for best results.

73,
Wayne
N6KR