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Old October 12th 14, 02:25 AM posted to rec.radio.amateur.antenna
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Default OK, let's discuss dipoles vs length

Lostgallifreyan wrote:
wrote in :

Yep, and once the issue of size versus efficieny is put to rest, it would
not be a bad idea to look at the real effects of ground, both in terms
of height in wavelengths and soil quality.


Thankyou. This is the bit I am most weak on (though I did not grasp all the
previous detail, the ground loss was an issue not lost on me, and is the
one I need most to solve in my next efforts). What is this NEC program, and
where can I find it? Sorry, but I have to ask, or Google will likely flood me
with Nippon Electric Company details.


Look at this for an overview of NEC.

http://en.wikipedia.org/wiki/Numeric...magnetics_Code

At the bottom under External links you will find both free and commercial
implementations.

EZNEC by W7EL is popular among hams and has a free demo version that is
fully functional but limited in how complex a model you can generate.

NEC itself just crunches and produces numbers, but there are several
versions, including EZNEC, which have graphical interfaces to make
it easier to build the model and view the results.

I've used EZNEC+ for years.



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Jim Pennino
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Old October 12th 14, 12:52 PM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Sep 2006
Posts: 613
Default OK, let's discuss dipoles vs length

wrote in :

Look at this for an overview of NEC.

http://en.wikipedia.org/wiki/Numeric...magnetics_Code

At the bottom under External links you will find both free and commercial
implementations.

EZNEC by W7EL is popular among hams and has a free demo version that is
fully functional but limited in how complex a model you can generate.

NEC itself just crunches and produces numbers, but there are several
versions, including EZNEC, which have graphical interfaces to make
it easier to build the model and view the results.

I've used EZNEC+ for years.



Thanks again, I'll use that if it runs on W98. (Long story, but I decided to
stay with it for too many reasons not to do so). Graphic representations will
help me a lot. (There is a tool for laser beam optics that used graphical
feedback of inputs to demonstrate predictions, if it's anything like that one
it will be indispensible).
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Old October 12th 14, 05:36 PM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
Posts: 409
Default OK, let's discuss dipoles vs length



wrote in message ...

Lostgallifreyan wrote:
wrote in :

Yep, and once the issue of size versus efficieny is put to rest, it would
not be a bad idea to look at the real effects of ground, both in terms
of height in wavelengths and soil quality.


Thankyou. This is the bit I am most weak on (though I did not grasp all
the
previous detail, the ground loss was an issue not lost on me, and is the
one I need most to solve in my next efforts). What is this NEC program,
and
where can I find it? Sorry, but I have to ask, or Google will likely flood
me
with Nippon Electric Company details.


# Look at this for an overview of NEC.

#
http://en.wikipedia.org/wiki/Numeric...magnetics_Code

# At the bottom under External links you will find both free and commercial
# implementations.

# EZNEC by W7EL is popular among hams and has a free demo version that is
# fully functional but limited in how complex a model you can generate.

# NEC itself just crunches and produces numbers, but there are several
# versions, including EZNEC, which have graphical interfaces to make
# it easier to build the model and view the results.

# I've used EZNEC+ for years.

Me too. It has been extremely useful in identifying promising approaches
without having to build the hardware for each.

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Old October 12th 14, 08:12 PM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
Posts: 112
Default OK, let's discuss dipoles vs length

In message ,
writes
Look at this for an overview of NEC.

http://en.wikipedia.org/wiki/Numeric...magnetics_Code

At the bottom under External links you will find both free and commercial
implementations.

EZNEC by W7EL is popular among hams and has a free demo version that is
fully functional but limited in how complex a model you can generate.

NEC itself just crunches and produces numbers, but there are several
versions, including EZNEC, which have graphical interfaces to make
it easier to build the model and view the results.

I've used EZNEC+ for years.



I use 4NEC2 - it's free ! Arie Voors used to post here, but I've not
seen anything from him for some time. MMANA is good too, but there's a
lot it can't do.

73 Brian GM4DIJ
--
Brian Howie

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