On 7/29/2023 7:18 PM, Steve L wrote:
What I don’t clearly see is how to provide a station and antenna ground for a
basement operating position.
Steve,
Email reflectors are NOT the place to learn this stuff, but they are the
place to learn where to learn it. STUDY the link I provided to my
I might add to my own question…
- All wiring entering the house and in the development is underground:
electricity, phone, internet
- I can guarantee our builder did not use lead lined plywood for the roof deck
otherwise creating a faraday shield in the attic
- There’s no Hardee board
Good Evening,
The sun has been active this week. Earlier today there was a radio
black out due to a cloud of protons hitting the ionosphere. An earth
directed CME will follow in a couple of days. Spot 3384 may flare
soon. I hope to hear a few thunderstorms tomorrow.
Weather has been
> Lightning can’t tell whether something is grounded
> because the energy pulse hasn’t gotten that far yet.
[Full bottom quote follows reply.]
The path for lightning is determined before the main pulse of energy
loss happens, and much of the communication involved in determining the
path
And all other cables entering the house. Much of the damage caused by
lightning stems from currents induced in conductors entering the house
caused by the intense electromagnetic fields. Lightning is an RF event.
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
Ray Maxfield wrote
If you are using Attic Antenna's ..
I would focus on the Power lines.
wa6vab Ray k3
On Sat, Jul 29, 2023 at 10:11 AM Rick NK7I wrote:
> Heh, try Hardee board (concrete) or aluminum siding, or stucco (wire
> based to hold it together). Or clay brick roofing.
>
> BUT that also contains wifi
Heh, try Hardee board (concrete) or aluminum siding, or stucco (wire
based to hold it together). Or clay brick roofing.
BUT that also contains wifi within the structure for network security hi hi.
If the antenna choice is HOA based (yuck, ick, ew) perhaps laying the
invisible wire ON the
I have the lightning tracker apps and monitor 3 local radar locations.
Also, we keep and eye to the sky and our golden retrievers can sense
lightning approaching.
My wife and dogs were in the yard under partly cloudy skies and little
rumbles 15 to 20 miles away. A strike happened about 500
A bigger concern for attic antennas is the use of "radiation shield" plywood on
the roof of houses build in the last 10 years or so that turn the attic into a
Faraday cage. The single most annoying reason cell phones don't work inside
your houses anymore.
Dr. William J. Schmidt - K9HZ J68HZ
I've found this lightning tracker app to be pretty accurate.
https://play.google.com/store/apps/details?id=com.jrustonapps.mylightningtracker73,Gary
K9GS
Original message From: Drew AF2Z Date:
7/29/23 10:48 AM (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re:
[Elecraft]
I just installed the latest version of the KX3 Utility from Elecraft.
The only glitch was when Windows Defender tried to protect me from bad
people, but I knew Elecraft wasn't bad people, so overrode the warning.
All went well otherwise.
david
KC1DNY
On 7/26/2023 3:24 PM, Dave wrote:
Is
I keep a close watch on the weather during lightning season here. Also,
I often have the AM broadcast band on and, depending on the distance and
power output of various stations, can hear the lightning strikes as they
build into the region.
In the shack I watch the realtime lightning map at
Jim & Co.,
I’m reading all the recent posts on the Elecraft reflector concerning lightning
protection…
After a recent move, I am working on the design and construction of attic
antennas for both HF and V/UHF. The topic of grounding and/or providing
lightning protection for this installation
Just take note the link to the R56 manual is for a manual from 2005. Most of
the principals have not changed but there have been changes to it over the last
18 years. (“Lessons learned” applied).
73
Dave wo2x (ex Motorolan)
Sent from my iPad
> On Jul 29, 2023, at 10:32 AM, Alan Bloom wrote:
Hi Al,
The "Bible" on this subject that has been used for many years by the
telecommunications industry is Motorola's "R56, Standards and Guidelines
for Communications Sites":
https://www.blm.gov/sites/blm.gov/files/Lands_ROW_Motorola_R56_2005_manual.pdf
It's kind of complicated, but it's
Essentially, your antenna is a lightning rod. Lightning rods don't
"attract" lightning. The dissipate the charge differential between the
cloud and earth before the charge builds sufficiently to provide a path
for a "leader" charge from earth to the cloud. When a "leader" is
established, the
Protecting your equipment goes beyond a direct strike. I had an element in
my K3 transmit final wiped out by a lightning strike a good distance away.
I wasn't on the air at the time but I remember the strike. This was
through a pair of Alpha-Delta switches.
Sometimes I miss "the good old days"
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