[Elecraft] KX3 Output power rating

[Wayne Burdick]

The latest firmware is required; it will allow you to use up to 15 W on 80-20 m (10 W elsewhere).

The upgraded heatsink is optional. On my lab KX3 I can put out 15 watts for several minutes before hitting the temperature limit, at which power is reduced by firmware.

73,
Wayne
N6KR


On May 27, 2016, at 10:16 AM, Alan Geller via Elecraft <elecraft at mailman.qth.net> wrote:

> The KX3 is now being positioned as the 15 watt big brother to the smaller KX2 “up to 10 watts” version. The upper
> limit on my KX3 power adjustment seems to have always been around 10.2 watts. How does one safely achieve this
> 15 watt performance? Does it require the new/upgrade heatsink plus a new firmware version? I have always used an
> approx. 14 Volt power source.
> 
> I’m sure this has been addressed before but I don’t see the history…thanks for any observations.
> 
> alan/K6ADG
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