Topband: Chokes for Beverages

[Tom W8JI]

> Another reason to be leery of crimp connectors. My soldered connector 
> stubs
> are still fine after 25 years at 2 locations in very high humidity
> enviroments.

Crimp connections are used all through the CATV industry, and many other 
places, and are just fine for many years when properly made. All of my 
internal house wiring is non-flooded, as are all the cables in my contest 
barn. There are millions of feet of non-flooded cables in MATV and CATV 
systems, which is also not a problem provided cables are properly installed 
and correct connectors used.

The real problem is using non-flooded cables outdoors, which with even a 
tiny hole will contaminate.

Woven copper can actually be worse once it has been damp inside. Strands in 
the weave tarnish, and cause high losses and poor shield performance.

The advantage of foil is it has no weave, so surface corrosion does not 
deteriorate the cable nearly as fast as in woven conductors. The only 
problem, provided the shield has not corroded through, are end connections 
and the seam. Seam integrity is mostly problematic at UHF and higher.

73 Tom