Maybe you are new to the list. This topic has been discussed in detail (even just recently) and it has been shown time after time that the dissimilar metals (tined copper braid, over an aluminum foil) will eventually cause noise in a duplex environment.
Relatively new yes, but then new people come on all the time.
This guy may be newer than me, and searching yahoo's archives is a PITA.
At least Times finally affirms there is a problem with LMR, something that I have claimed for a long time.
Search the archives for more on the subject.
I'm not too surprised by this, it's not that dis-similar from BeldFoil, which was a disaster.
Thicker aluminum, but the surface will all be oxidized, and any motion at all will cause scraping, and intermittent contact.
If it was in an oxygen free atmosphere, I suspect it would be ok, but who could afford that?
Friendly vs unfriendly metals makes a difference too. Gold Vs Tin with resultant fretting of the tin, is something I've recently seen up close. Very nasty. Fortunately, a shot of De-Oxit helps a lot.
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