On 8/25/2015 3:56 AM, Pawson, James wrote:
In my experience from sourcing and testing many standard HDMI cables it is very
difficult to get a good quality shielded cable without working closely with the
vendors.
James,
You'll likely get some other "been there, got the Tee shirt" replies
beside mine. Could you re-post the comment on one of LinkedIn's EMC
groups? Would you mind if *I* did? The ARRL EMC group probably need a
heads-up, too, and maybe Electronic Design, et al.. Companies have
short memories.
Back in 1986 or so, my brother's VERY high-resolution B&W monitor was
interfering with his neighbors television reception on the18th floor of
a Boston MA building. Considering that the transmitting antenna was a
few miles away and line-of-sight, it had to have been really, really
bad. I was able to fix that with an external 360 degree shield over the
cable, tightly held to the EMC backshells with cable ties. A few years
later, At Tandy Computers, I tested a 3rd Party TV tuner card when the
video cable provided with it made a (formerly) compliant computer fail
Part 15 -- and only when the tuner function was off; somebody had missed
that. Fun times.
Cheers,
Cortland Richmond
KA5S
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