Although I don't have an amp, and ran my K3 barefoot, and run my K4D barefoot
as well, I do have a 100 foot CAT5E cable running into the shack from the other
end of the house, through the attic (there being no basement here in south
Florida!). Initially, I was seeing a fair amount of noise from it, and was able
to quench it by winding a couple of turns around a small clamp-on choke.
That doesn't seem to affect the network performance, so I can reliably run it
at 400MBit/second, and it seems to clean up whatever other noise it's picking
up from nearby homes (most are on small lots of about 1/5 acre) and the
condominium complex next door. I still have some strange noise from other
sources coming in from the antenna, and the HVAC's air handler is very noisy,
particularly on 30m through 15m, but I know it's not the twisted-pair Ethernet
line. My CAT5E cable plugs into a small AC-powered router, and feeds my Mac,
the K4D, as well as a laptop occasionally.
HTH, and 73,
Brandy, N1HO (EL96xh)
On Wednesday, March 13, 2024 at 10:22:02 AM EDT, Pete Smith N4ZR
<[email protected]> wrote:
One culprit I can think of is a 100-foot Ethernet cable between my
station and my FIOS router. I have bought a shielded replacement but
have not yet installed it. After reading some of the recent commentary
about so-called "shielded" cables, I'm wondering if this is worth doing.
Any suggestions, either K-3-specific or more general, would be much
appreciated.
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