[Elecraft] K2 FW questions

[Don Wilhelm]

Jon,

The major firmware upgrade was from MCU version 1.xx to 2.xx.  Since you 
have 2.01, you may not have any need to upgrade if you are satisfied 
with it.  Your K2 will work as well as any other with that firmware version.
The first upgrade from 2.01 was to 2.03, and I am sorry to say that I 
have forgotten what the added features were in that upgrade.
The change from 2.03 to 2.04 was mainly to support the more recent 
upgrades and options - the K2 Keying Modification and the addition of 
the K60XV option both required firmware changes.

If you have the K2/100, I would recommend the firmware upgrade and the 
addition of the K2 Keying Waveshape Mod, but if you have the K2/10, you 
may be happy with what you have now.

BTW, the K2 Keying Waveshape Mod is not currently available from 
Elecraft, but if you want to install it, I can tell you how in a 
separate off-list email.  I have already published it on-list, so you 
can find it in the archives.  If you have the K2/100 (or drive an 
amplifier with your K2/10), I highly recommend you add that mod to 
eliminate keyclicks that are not obvious with the K2/10, but become 
troublesome when an amp is added.

73,
Don W3FPR

On 10/19/2014 6:18 PM, Jon Pike wrote:
> In my continuing efforts of rediscovering my K2,  I'm wondering how 
> badly I want the current FW versions.
>
> I currently have 2.01f and 1.02,  not sure what/if it needs one the 
> SSB version is.   I don't seem to be able to find a revision list of 
> versions back down to mine,  just what's written up for the current 
> last couple of 2.04 versions.
>
> It's a 10W K2,  (embarrased to not remember my s/n!) have done a lot 
> of the upgrades and fixes probably up to the '04 or so point in time. 
> I have a lot, but not all of the options,  antenna tuner, SSB, 
> 160m/RX, NB, KIO2?.... No AF or DSP.    So, I'm wondering what feature 
> additions am I missing,  or am I pretty much OK as is?
>
> Thanks...
>
> Jon KA6MOK
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