Hi Barry,
While using the KX2 in just about any digital mode above 5 W or so, we
found the PA temp will reach thermal limit fairly quickly, which is why
Elecraft rates the KX2 at 5 W in digital modes, and why we came up with
an improved cooling solution. (commercial content) Many owners who wish
to run more than 5 W in digital modes have purchased the Pro Audio
Engineering Kx22 Heatsink, which allows for an average (band and ambient
temp dependent) 200-250% increase in transmit time before thermal
limiting kicks in.
Cheers & 73,
Howie - WA4PSC
www.proaudioeng.com
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