Posted by
jperelst on
Oct 03, 2010; 12:54am
URL: http://elecraft.85.s1.nabble.com/K2-Heat-On-Digital-Modes-tp5572168p5595284.html
Don,
Thanks for the response and info.
The wording in the Operating Manual made me think that the same values are used
for RTTY as for SSB, my mistake. I used Spectogram (surprisingly easy) and have
everything working nicely now.
On the digital transmission heat issue. The rig is ok on 1-2 minute digital
transmissions (e.g., 1-2 minutes of PSK at 30 watts). It'll warm up a bit,
although nothing uncomfortable, and the internal fan can handle it. The problem
is longer transmissions. For example, I do a lot of file sending for EmComm
simulations and those transmissions can run 5-10 minutes at a time. The area
above the power transistors gets very uncomfortable on a long transmission like
that and people notice drift in my transmissions.
For now I've got a desk fan pointed at the rig when doing longer transmissions
and that's keeping the rig cool and stable. I'll find myself a muffin fan or
smaller desk fan at the next hamfest.
Jon
KB1QBZ
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