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-   -   J-pole question (https://www.radiobanter.com/antenna/172206-j-pole-question.html)

Dave Platt August 2nd 11 07:37 PM

J-pole question
 
You have a point Mark. I agree that a simple 1/4 wave groundplane is more
study and very easy to make using an so-239 and some piano wire. Steel wire
can be soldered right into the back, four bolts with nuts and four more
peaces of wire around 19" long with a bit of a downward bend and you have a
very good antenna.


It's worth noting that you don't actually need four radials. Two
radials (on opposite sides of the feedpoint, bent down at around 45
degrees) will produce a perfectly satisfactory ground-plane. The
patterns of 2- and 4-radial ground plane antennas are almost
indistinguishable. A 4-radial antenna may *look* as if it would
produce a much more circular pattern than a 2-radial antenna, but this
doesn't turn out to actually be the case.


--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

Sal[_3_] August 2nd 11 08:33 PM

J-pole question
 

"Wayne" wrote in message
...


"Kevin" wrote in message ...

At least it's good to see that my posts are making it out! ;)

The French, in the cities tend to be rude and arrogant -- kind of like New
York City but worse. In the smaller towns they are quite pleasant and
welcome tourists as long as they don't act like "rude Americans" and
expect "special treatment."

-
I personally had terrific interactions with people in France. However, it
is still a lot of fun to have jokes at their expense :)


My only time to be arrested in 68 years: Paris, early afternoon, public
park, sober, in USN uniform. Have all the fun you want with jokes at their
expense.

Eskimos have over 60 words for "ice." The French have about that many for
"surrender."

OK, I'm done.



John S August 2nd 11 11:10 PM

J-pole question
 
On 8/2/2011 2:33 PM, Sal wrote:
wrote in message
...


"Kevin" wrote in message ...

At least it's good to see that my posts are making it out! ;)

The French, in the cities tend to be rude and arrogant -- kind of like New
York City but worse. In the smaller towns they are quite pleasant and
welcome tourists as long as they don't act like "rude Americans" and
expect "special treatment."

-
I personally had terrific interactions with people in France. However, it
is still a lot of fun to have jokes at their expense :)


My only time to be arrested in 68 years: Paris, early afternoon, public
park, sober, in USN uniform. Have all the fun you want with jokes at their
expense.

Eskimos have over 60 words for "ice." The French have about that many for
"surrender."

OK, I'm done.



According to Hank (the cow dog) chickens have about 12 words. All of
them mean "HELP!"


NM5K[_4_] August 3rd 11 12:07 AM

J-pole question
 
On 8/2/2011 1:37 PM, Dave Platt wrote:
You have a point Mark. I agree that a simple 1/4 wave groundplane is more
study and very easy to make using an so-239 and some piano wire. Steel wire
can be soldered right into the back, four bolts with nuts and four more
peaces of wire around 19" long with a bit of a downward bend and you have a
very good antenna.


It's worth noting that you don't actually need four radials. Two
radials (on opposite sides of the feedpoint, bent down at around 45
degrees) will produce a perfectly satisfactory ground-plane. The
patterns of 2- and 4-radial ground plane antennas are almost
indistinguishable. A 4-radial antenna may *look* as if it would
produce a much more circular pattern than a 2-radial antenna, but this
doesn't turn out to actually be the case.


That's true as far as the pattern. But.. The more radials you
use, the better the decoupling from the feed line. Most of my
1/4 wave GP's actually use 6-8 radials. I've done tests, and
it does make a difference. But for casual use, what you say is
true. Only two radials are required to get a pretty good omni
pattern. Or one, if vertical.. But then you might as well call
it a 1/2 wave vertical instead of a ground plane.
And you will then require some kind of decoupling scheme below
the vertical for optimum results. I prefer radial sets, cones, etc
vs feed line chokes.






Mike Coslo[_2_] August 3rd 11 04:30 AM

J-pole question
 
On 8/1/2011 9:13 PM, Kevin wrote:
At least it's good to see that my posts are making it out! ;)

The French, in the cities tend to be rude and arrogant -- kind of like New
York City but worse. In the smaller towns they are quite pleasant and
welcome tourists as long as they don't act like "rude Americans" and expect
"special treatment."


I've found that when I attempt to speak the language, I'm pretty well
treated.

Now there is the possibility that they just find it amusing and
charming, because I took both French and Spanish, and in conversation I
can slip between both languages inadvertently.

Usually when I note that I "Parlez poco Francaise" they start smiling....

As for New York, I haven't had much trouble there, but then I give back
what I get. Most seem to actually like some attitude. Go figure!

Like the old joke "Can you tell me the directions to Soho, or should I
just go @*^! myself?

Whaddevuh! 8^)

- 73 de Mike N3LI -

david August 3rd 11 11:14 AM

J-pole question
 
On Tue, 02 Aug 2011 12:33:09 -0700, Sal rearranged some electrons to say:

"Wayne" wrote in message
...


"Kevin" wrote in message ...

At least it's good to see that my posts are making it out! ;)

The French, in the cities tend to be rude and arrogant -- kind of like
New York City but worse. In the smaller towns they are quite pleasant
and welcome tourists as long as they don't act like "rude Americans"
and expect "special treatment."

-
I personally had terrific interactions with people in France. However,
it is still a lot of fun to have jokes at their expense :)


My only time to be arrested in 68 years: Paris, early afternoon, public
park, sober, in USN uniform. Have all the fun you want with jokes at
their expense.

Eskimos have over 60 words for "ice." The French have about that many
for "surrender."

OK, I'm done.


Do you know why there are so many trees on the streets of Paris?
To give the Germans shade while they are marching.


BillyBobMarley August 6th 11 08:52 PM

J-pole question
 
On Aug 1, 9:13*pm, "Kevin" wrote:
At least it's good to see that my posts are making it out! *;)

The French, in the cities tend to be rude and arrogant -- kind of like New
York City but worse. *In the smaller towns they are quite pleasant and
welcome tourists as long as they don't act like "rude Americans" and expect
"special treatment."

Kevin, WB5RUE

"Mike Coslo" wrote in message

...







On 8/1/2011 4:38 PM, Kevin wrote:


Kevin, WB5RUE


Quoted correctly or not it's still accurate.


Ahh, the brothership of Hams - Good to see a friendly face here Kevin.


- Mike N3LI -


It was a lot like that in Germany in the 80's .I was stationed there
for 3 years and found if you get out of the "GI Towns" and went to the
smaller villages and towns outside of the bases they treated you like
gold.Of course I guess that's like anywhere else you get out of the
big cities and people are a more laid back .


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