On 8/18/2022 12:13 AM, Martin Sole wrote:
As I understand it the station is located inside the house and the
connection to the outside ground is approximately 20 feet. Right now I
can only assume there is a lot of RF inside the station though before
moving things around in the same shack the IC-7300 was working perfectly
for very long periods of time.
Hi Martin,
The use of the word "ground" to describe four different concepts since
the earliest days of radio has led to massive mis-understandings of
fundamental concepts. A very smart Canadian electrical engineer and ham
put it very poetically in lectures he gave on the topic -- "the earth is
not a sump into which hum, buzz, noise, and RFI are poured!"
A connection to earth has NOTHING to do with killing hum, buzz, or RFI,
but it is critical for lightning protection. What DOES matter a LOT more
is BONDING -- connections of all grounded things in a home, station, or
building. All that bonding is also a critical element of lightning
protection. I've covered all of this in the slides for a talk I've done
at a couple of US west coast ham conventions and to several clubs. They
are here.
http://k9yc.com/GroundingAndAudio.pdf
There are differences from one country/continent to another about how
power systems are bonded to earth and to everything else. I don't know
anything about things in your country. But everything else in the slide
deck applies around the world.
As to USB ports closing -- there are settings in Windoze for power
saving that can be set turn off stuff, including USB ports, after some
pre-set idle time.
73, Jim K9YC
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