Let me challenge that test because I'm not convinced that the test is
valid.
I watched that video and it only shows the signals before and after the
choke has been applied, on the outside of the coax. The conclusion is
then drawn that all those signals make it into the receiver and causes
noise. Can someone explain why that would be a valid conclusion?
Shouldn't he be showing that those signals are indeed making it into the
receiver and then showing that the application of the choke indeed make
these signals disappear?
I mean, I can make such measurements on any cable attached to a receiver
and would probably be horrified by what I would see, but that doesn't
mean that those signals actually make it into the receiver and cause
noise.
Like someone else wrote, the best test is probably to apply the choke
and if it doesn't make a difference, ask for a refund from DXE. :)
This inquiring mind would like to know.
73,
--Alex KR1ST
On 2021-04-08 10:35, Alan Higbie wrote:
In 2019 K3LR presented such a test at the Dayton Contest University.
Tim describes it @ 15:30 into the presentation.
Here is the YouTube link: https://www.youtube.com/watch?v=wd5B5qPHI_U
The relevant slides are at pages 41050 of his Power Point presentation.
CTU 2019 14-K3LR-Contest-Station-Optimization-PLUSROTATOR.pdf
73, Alan K0AV
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