Hi Rich,
The advantages of a real aftermarket heatsink (not the poorly designed
imports) is rapid thermal recovery after each transmit cycle and less
heat re-radiated into the rig. The import with the rounded fin root as
well as others have a less optimum volume to surface area ratio and stay
much hotter between transmit cycles. Also a good heatsink will allow
higher power operation in temperatures we sometimes find ourselves when
operating on picnic tables and the like in the summer!
(commercial content) We find most of our customers who are occasional
digital users are satisfied with the smaller of our two heatsinks, model
Kx31, but the JT mode enthusiasts, especially contesters are going for
the slightly larger Kx32 model. Much more info on our website. Just
our experience...YMMV
Howie - WA4PSC
www.proaudioeng.com
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