[Elecraft] KAT100 ATU and floor tile

Wed Jan 29 18:22:00 2003

Just a thought:

Damping vibrations of a plate can effectively be done with mass
loading rather than with a flexible material. For example, a popular
and common "sound deadener" product for aircraft consists of small
sections of lead sheet about 1/8" thick backed by an adhesive layer
for attachment to the aircraft fuselage or whatever. This mass loading
reduces the resonant frequency,  greatly increases the damping factor
and is usually very effective.

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
K2 #489  IC-765 #2349 IC-756 PRO  #2121 IC-756 PRO2 #3235

----- Original Message -----
From: "Gary Hembree" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Wednesday, January 29, 2003 4:18 PM
Subject: Re: [Elecraft] KAT100 ATU and floor tile

> What you are trying to do is damp the acoustic vibrations of the top
and
> bottom panels.  Most of the surface will probably have to be bonded
to the
> "damper", er floor tile.  Been there, done that, in the modern
vernacular.
> Since the panels are magnetic perhaps refrigerator magnet material
bonded
> to the tile would provide enough damping when the (removable)
composite is
> attached to the panel.
> 73
> Gary, N7IR
> DM43bi