[Elecraft] K3: is it SDR?

[Don Wilhelm]

Lyle,

My opinion on the subject.

Since you and Wayne hold and write the firmware, in your hands, it is 
fully an SDR.
But I believe in the hands of the user, it could be called an "FDR" - 
Firmware Defined Radio.
The Flex on the other hand uses open source code that *can* be modified 
by the user, so that is closer to an SDR than the K3.
But in reality, most Flex users will not create their own code for it, 
they will use someone else's like 'firmware', so they too have an 'FDR'

I know it is a subtle distinction, and we may never settle on what is 
and what isn't.

73,
Don W3FPR



Lyle Johnson wrote:
>> Sorry, but I'm not sure I agree. By that definition many radios since 
>> the 80s would be SDRs.
>
> The whole question really is, "What is an SDR?"  As long as we all get 
> to choose our own definition, we'll have widely varying opinions :-)
>
>> My definition of an SDR is a radio that could be radically changed in 
>> functionality by a software change.
>
> K3 has had many, many downloadable updates that added features and 
> modes to the radio, fixed bugs etc.
>
> Thus, an SDR :-)
>
> 73,
>
> Lyle KK7P  (who will now bow out of this thread ;-)
>
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