[Elecraft] KX3: advise for setting up for WSJT-X

[Jim Brown]

On 6/18/2018 10:20 AM, Edward R Cole wrote:
> Any advice from KX3 users of digital modes (particularly on 6m) would 
> be appreciated.  It can be off-list as this as probably been "hashed 
> over" before (I just didn't pay attention).

I'll stick to the list. First, temperature stability is a MAJOR issue on 
the higher bands, especially 6M, for early serial number KX3s. As an 
introduction, skim this page. 
http://www.bigskyspaces.com/w7gj/KX3HeatSinks.htm

After Lance's KX3 was built and after he made Elecraft aware of the 
issues, the main board was redesigned to eliminate the problem he 
highlighted, and the heat sink was beefed up. Elecraft also built into 
the firmware support for a temperature compensation procedure to be done 
by users.

The good news is that, IF the TC run is done, a current production KX3 
with these running production changes works very well for MSK and FT8 on 
6M. The bad news is that while the main board can be replaced, it is 
VERY expensive. Better to sell your older KX3 and buy a new one. :)

73, Jim K9YC