[Elecraft] A an old-new KX1 build (Paul Harker)

[Don Wilhelm]

Howard,

There has been only one firmware update in the life of the KX1 - to 
version 1.02.  That added support for 80 meters (not needed for the 
KXB30) and also added scanning.

If one has an older KX1 (with version 1.01 firmware), and orders the 
KXB3080, the updated firmware is provided at no extra cost.  Note that 
you must specify that your firmware is back level when you order the 
KXB3080 or it will not be sent - most KX1s now have version 1.02 - it 
has been shipping in KX1s since 2007.

Yes, the KX1 Power Mod can be applied to KX1s that have low power output 
(the parts are supplied with the KXB3080 kit), but if the output is 
already in the 3 to 4 watt range with a 13.8 volt supply, that mod 
should not be installed.  Exceeding 4 watts with the KX1 can cause 
damage to the PA output components if significant SWR is present.

I responded on the 25th to Paul with whatever information I could 
provide.  If you scroll down on the Elecraft KX1 Product page to 
"KXB3080 installation" you will see my name mentioned there.  I do most 
of the KX1 repairs for Elecraft, so Paul already has the latest 
information that I am aware of (Elecraft keeps me well informed on 
anything related to the KX1 - as well as the K1, K2 and XV series 
transverters).

73,
Don W3FPR

On 10/27/2013 3:30 PM, Howard Zehr wrote:
> Paul - I  suggest you email Elecraft about this.  They are good about replying.  It's possible there has been an update in the firmware.  Also, there is an update about what to do if there is low power output that is hard to find on the Elecraft website.  Here it is:
> http://www.elecraft.com/manual/E740099%20KX1%20Application%20Note%20Rev%20B.pdf
>