[Elecraft] FSK power

[Guy Olinger K2AV]

The K3 has the best heat dissipation scheme I have ever seen in a 100W
transceiver.  Though Wayne and co. don't want to hear about us doing it,
some of us have done the brick on key thing at 110 watts for a long time,
and watched the temp level out in the 50's.  Fan comes on, goes to high, and
blows a lot of reasonably warm air out.

Yes, you CAN muck up the top cover and blow more air in if that makes you
feel good.  But the prevailing opinion will be that's unnecessary.  It would
not be accurate to tell anyone that a top fan is necessary.

73, Guy.

On Thu, Sep 23, 2010 at 3:10 PM, Mark n2qt <n2qt at verizon.net> wrote:

> I've become a firm believer in air flow during rtty contests.  I use a 24
> volt 5 inch muffin fan
> blowing air down into the K3 across the PA fins.  I run the fan with about
> 12 volts which
> cuts the noise down somewhat.  Looking at the PA temp while doing this,
> it's
> hard to get
> it up much over 35C during a contest.
>
> Mark n2qt
>
> >
> > NR4C wrote:
> >
> >> Now, one more. How much power can I safely use with FSK? I have made
> >> several contacts so far at about 50 watts. Can I use more? there is a
> >> RTTY contest this weekend, and I don't want to damage the radio, but
> >> don't want to start off with a weak signal if I can do better.
> >
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