[IRCA] R-F fields inside aluminum siding

[Charles A Taylor <MWDXer@xxxxxxx>]

Group:

Here's an observation:

We've a outbuilding in the back yard. It's designed as a garage, and has 
aluminum siding.

I've compared reception of MW stations both in and outside the building 
while using a
DX-398 receiver.

I cannot detect the slightest difference in signal strength of stations 
anywhere on the
BCB whether I am outside or inside the building.

This appears to contradict totally theory about the propagation of radio 
waves, viz:

A conductive enclosure will prevent penetration of low-intensity E-field 
waves, and
will set up (being conductive) L-wave fields that will tend to cancel 
L-waves that
contact the enclosure.

It's this effect that Patrick Martin observed while passing through a 
steel-truss bridge,
and likening it to passing through a tunnel in that the metal shielded the 
area within the
bridge from radio waves.

Where is the error in my reasoning here?

73,

Charles

Charles A Taylor, WD4INP
Greenville, North Carolina 


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