A question for the RF " knowledgeable".
I am placing a transmitter (The RDAS transmitter/antenna to be precise) in
the bottom end of an avionics bay.
In the bottom compartment there will be two threaded steel rods running
adjacent and in parallel to the aforementioned antenna.
The steel rods will be running the full length of the bay past all sorts of
other electronic gadgets....past numerous bulkheads, via the M6 toll etc.
I have a couple of concerns:
The first is that the antenna will induce all sorts of electronic noise in
the rods and in turn the rods will dissipate unwanted nastiness to other
gadgets in the other bays. Is my concern warranted? Can I resolve the issue
by shielding the rods? Can I do something electronically magical like
connect the rods to the -ve of the battery supplies?
Although I am placing the transmitter/antenna some way away, circa 50cm
(19") from the GPS receiver I would be far more comfortable if I could
shield the rest of the gadgets (and the GPS) in the adjacent bays in some
manner. There will be plenty of ply bulkheads in between. Would it be
possible to sandwich a layer of tin (OK I am making this up now - but the
principle of the question stands! ;) ) in between a couple of bulkheads or
perhaps paint the bulkheads with some special "shielding" paint?
I trust that the witches and wizards that are RF knowledgeable can stir up
some broth in their respective cauldrons and retort some form of answer as I
am afraid I am not skilled in this form of black magic.....
- posted 17 years ago