...@contesting.com] För Richard (Rick)
Karlquist
Skickat: den 26 april 2015 19:50
Till: Henk PA5KT; topband@contesting.com
Ämne: Re: Topband: earth tester
Is there some way you could lay a half wave dipole on the ground and measure
the resonant frequency and radiation resistance vs the known free
Is there some way you could lay a half wave
dipole on the ground and measure the resonant
frequency and radiation resistance vs the
known free space values, and convert this to
ground conductance and permittivity? Perhaps
model it in some version of NEC and play with
the ground constants until
-Mensaje original-
De: Topband [mailto:topband-boun...@contesting.com] En nombre de Jim Brown
Enviado el: miércoles, 22 de abril de 2015 01:48 p.m.
Para: topband@contesting.com
Asunto: Re: Topband: earth tester
What do you want to measure? These testers, as well as the fall of
potential
What do you want to measure? These testers, as well as the fall of
potential method, measure the impedance to earth at dc and low audio
frequencies.
It's important to remember that a connection to earth is for lightning
protection, and does not make a TX antenna work better.
If you want to
Thanks information Paul.
Many believe all the conductivity is in the first three or four feet
from the surface. There are many variations around the globe.
Surface sand, desert, and California parched soil can be close to an
insulator.
Other may have conductive minerals at some
Hello
Do you use a earth tester?
Which brand do you know is very good and accurate to consider?
Thanks!
Jorge
CX6VM/CW5W
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Topband Reflector Archives -
Perhaps a few words on how you joined the rods would be useful here.
Regards,Jeff W6JK
On Wednesday, April 22, 2015 1:00 PM, Paul Christensen w...@arrl.net
wrote:
Do you use a earth tester? Which brand do you know is very good and
accurate to consider?
Jorge,
If you can, try
Do you use a earth tester? Which brand do you know is very good and
accurate to consider?
Jorge,
If you can, try and find a clamp-on earth tester rather than the type that
relies on the fall-of-potential method with electrodes. There are several
good clamp-on units by Megger, Fluke and
Thanks Paul
Will search about this
73,
Jorge
-Mensaje original-
De: Topband [mailto:topband-boun...@contesting.com] En nombre de Paul
Christensen
Enviado el: miércoles, 22 de abril de 2015 10:00 a.m.
Para: topband
Asunto: Re: Topband: earth tester
Do you use a earth tester? Which
“Perhaps a few words on how you joined the rods would be useful here.”
We used TB/Blackburn 60CNT2 non-threaded couplers to join the ground rods. A
compression fit is used to join the rods. The rods and couplers were obtained
from our rural electric company.The utility also supplied
: earth tester
What do you want to measure? These testers, as well as the fall of
potential method, measure the impedance to earth at dc and low audio
frequencies.
It's important to remember that a connection to earth is for lightning
protection, and does not make a TX antenna work better.
If you
Jim,
And after measuring it, I don't believe anyone will do anything about it. The
PolyPhaser manual has some good info on lightning protection.
73 de Price W0RI
On Wednesday, April 22, 2015 11:47 AM, Jim Brown
j...@audiosystemsgroup.com wrote:
What do you want to measure? These
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