Yes, it's definitely electrically connected to the coax braid.
They're stripped the outer insulation for the entire width of the
mesh and wrapped the mesh tab around it. Oddly, either the adhesive
is conductive or there's enough metal fibres that pass through the
adhesive to conduct.
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Here's a shot under a microscope. (I love my microscope!)
On 2018-07-12 8:21 PM, Hank Riley via
The decoupling idea did occur to me, but I did kind of
slide over your wording concerning the coax shield.
A few more clue requests:
By "connected," do you really mean connected galvanically
to the shield? Or just folded around the coax tightly?
Can't tell by the photo for sure. One picture I found looks
as if there might be a sliver of shield exposed on the end
of the mesh closest to the antenna. If connected, please
describe how that's done (one or two places; by solder?).
Does the adhesive cover the central area of the mesh at
My thought was attaching the mesh to the coax was simply
for product packaging purposes and was intended to be only
temporary until applied to the antenna.
Maybe the mesh does both functions. I don't think the
entire mesh area is needed for decoupling.
Interesting. I was also wondering about it being
some attempt at common mode decoupling, like a 1/4