It is a regular thing that chambers get to be dismantled and reassembled
all the time.  IMHO, it is possible to maintain SE of 100 dB for a
relocated chamber.  The guys who sell you the brand new chamber always
assemble and test the complete chamber in their factory before shipment.
The important thing to note is that: not all chambers are alike.  Each
chamber have their own characteristics.

May have to consider this if it is DIY :
(1) the power supply (power quality) in the new location.  This may be an
issue if the original filters are designed for 240V 50Hz ac;
(2) floor loading, if the chamber is one of those using heavy ferrite
tiles;
(3) the condition of the panels, other than the oblivious issue of
corrosion, there may be possible distortion and even delamination,
especially if the metal panels are laminated to a chipboard (wood) base.
This may be an issue if the new site has very  different levels of humidity
and temperature.

BTW, when you are reassembling the chamber, remember to watch out for
'traces' of masking tape or their (tell tale) melted/dried out and brittle
left-over adhesive on and around those (all important) seams or door
frames.  This is especially true if the chamber had been in storage for an
extended period.

I knew of at least one case when one strip of transparent tape have
(stumble and) baffle a bunch of experienced engineers.  I will leave it to
the original authors to tell their tale.  :-)  Cannot recall if Elya Joffe
wrote this 'war' story in the EMCS Newsletter or somewhere else.  Can
someone help?

Finally, beware of your boss (or can it be someone more sinister) who may
have left a single piece of insulated wire in the air vent!  Obviously to
test your proficiency.
:-)

Just my 2 ยข worth.  Good luck.

Tim Foo








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