[Elecraft] K3 Noisy fans?

[Gary Smith]

Though my K3 is still in utero and I have no personal experence with 
the fan noise on it yet, I might suggest getting some foam baffling 
like you see on some speaker grills and mount that behind the radio 
and if possible, angle the batting to deflect the fans sound waves 
above or below, so they do not reflect directly back to the radio and 
as well, back to you.

If you direct the sound lower you might have a bit of this baffling 
taped to the back of the desk and that will break up the resonance 
which will only serve to amplify the sound.

An ideal material would be the irregular shaped sound proofing AKA 
acoustic tile as the material tends to not reflect sound but the 
irregular shapes on its surface break up resonance.

Fiberglass would be great except for the obvious problem of the 
slivers. very wrinkled terrycloth would be better than nothing, if 
you can't find such batting, be creative; something you have on hand 
or can find easily will surely be of some help. Just use something 
fuzzy at the least.

The closer the sound is immediately to right angles will increase the 
lower registers as in the reason floor mounted speakers carry more 
bass than ones mid level & in the open, up the wall.

73,

Gary
KA1J