Re: [IRCA] R-F fields inside aluminum siding

["Don Moman VE6JY" <ve6jy@xxxxxxxxxxxxxx>]

A bridge is a "shorted turn" enclosure, your garage isn't conductive on
all sides.

73
Don VE6JY  (who has a 3 sided conductive metal shop for his DX building)

-----Original Message-----
From: irca-bounces@xxxxxxxxxxxxxxxx
[mailto:irca-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Charles A Taylor
Sent: March 21, 2007 9:27 PM
To: Mailing list for the International Radio Club of America
Subject: [IRCA] R-F fields inside aluminum siding




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 


_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the
original contributors and do not necessarily reflect the opinion of the
IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx


_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx