Len Over 21 wrote:



Incorrect. The word "dipole" refers to anything with two elements and a
polarity. [a "monopole" is a single element with no polarity]

A dipole ANTENNA refers to a wire type having two elements of wires,
balanced-fed from the center with RF voltage in opposition.

The length of this dipole antenna may be ANY length, from near-infinitesimal
(fractional wavelength) to many wavelengths.

The radiation pattern of the dipole antenna will vary based on many factors:
length relative to wavelength, distance above ground or other imperfect
conductor being the two most affecting patterns.

Len is correct, dipole simply means two separate elements (di
means two). A dipole of a certain length will be a half
wavelength at xx frequency, a quarter wavelength at yy
frequency and a full wavelength at zz frequency and so on.

"Bob Brock" wrote in message
...
On Sun, 07 Sep 2003 23:10:08 GMT, "Dan/W4NTI" w4nti@get rid of this
mindspring.com wrote:

I hate to break it to you fine folks....But.....there is no such thing as
a
1/4 wave DIPOLE.

Dan/W4NTI

http://www.google.com/search?hl=en&i...F4+wave+dipole

Searched the web for 1/4 wave dipole. Results 1 - 10 of about
39,100. Search took 0.17 seconds

All are SHF/UHF antennas. Your comments below, relative to HF antennas:

What would be wrong with requiring them to build a quarter wave dipole
that is resonate at a specified frequency as part of the test? That
is, if the test were changed to be written and performance based.

Then you build me a 1/4 wave HF dipole. Again, there is no such thing.

A dipole is 1/2wavelength total length. Center fed with 50 to 75 ohm
coaxial cable. Cut to resonance using the formula of 468/Frequency in
Megahertz.

I.E. 468 divided by 7 = 66.857 feet long.

This is the NORMAL meaning of a dipole for the Amateur Radio Service.

You can use all the other off the wall terms you choose. Above is correct
for ARS and should be on the test.

As to making it a performance test. Good idea.

Dan/W4NTI

On Mon, 08 Sep 2003 21:55:38 GMT, "Dan/W4NTI" w4nti@get rid of this
mindspring.com wrote:


"Bob Brock" wrote in message
.. .
On Sun, 07 Sep 2003 23:10:08 GMT, "Dan/W4NTI" w4nti@get rid of this
mindspring.com wrote:

I hate to break it to you fine folks....But.....there is no such thing as
a
1/4 wave DIPOLE.

Dan/W4NTI

http://www.google.com/search?hl=en&i...F4+wave+dipole

Searched the web for 1/4 wave dipole. Results 1 - 10 of about
39,100. Search took 0.17 seconds

All are SHF/UHF antennas. Your comments below, relative to HF antennas:

OK, I'll give you that, although a blanket statement that there is no
such thing as a 1/4 wave antenna is equally incorrect.

What would be wrong with requiring them to build a quarter wave dipole
that is resonate at a specified frequency as part of the test? That
is, if the test were changed to be written and performance based.

Then you build me a 1/4 wave HF dipole. Again, there is no such thing.

A dipole is 1/2wavelength total length. Center fed with 50 to 75 ohm
coaxial cable. Cut to resonance using the formula of 468/Frequency in
Megahertz.

I.E. 468 divided by 7 = 66.857 feet long.

This is the NORMAL meaning of a dipole for the Amateur Radio Service.

You can use all the other off the wall terms you choose. Above is correct
for ARS and should be on the test.

As to making it a performance test. Good idea.

I agree and my apologies.

On Mon, 08 Sep 2003 22:54:18 -0400, Bob Brock
wrote:


OK, I'll give you that, although a blanket statement that there is no
such thing as a 1/4 wave antenna is equally incorrect.


Should have read, "1/4 wave dipole antenna."

In article . net, "Dan/W4NTI"
w4nti@get rid of this mindspring.com writes:

I hate to break it to you fine folks....But.....there is no such thing as a
1/4 wave DIPOLE.

Incorrect. The word "dipole" refers to anything with two elements and a
polarity. [a "monopole" is a single element with no polarity]

A dipole ANTENNA refers to a wire type having two elements of wires,
balanced-fed from the center with RF voltage in opposition.

The length of this dipole antenna may be ANY length, from near-infinitesimal
(fractional wavelength) to many wavelengths.

The radiation pattern of the dipole antenna will vary based on many factors:
length relative to wavelength, distance above ground or other imperfect
conductor being the two most affecting patterns.

LHA

On 9 Sep 2003 04:55:04 GMT, "Dick Carroll;" wrote:



Len Over 21 wrote:

In article . net, "Dan/W4NTI"
w4nti@get rid of this mindspring.com writes:

I hate to break it to you fine folks....But.....there is no such thing as a
1/4 wave DIPOLE.

Incorrect. The word "dipole" refers to anything with two elements and a
polarity. [a "monopole" is a single element with no polarity]

Har har! What a joke The Jokester (still) is! Couldn't even get it right by looking it
up!
By his definition a 1/4 ground plane is a dipole! Whatta "Radio Man" he isn't !!!

And, just to repeat the FACT of the matter, **There is no such thing as a 1/4 wave
dipole!!!**

Plonk. Enough of your lies.

In article ,
(Len Over 21) writes:

There are currently 7 petitions for Rule Making at the FCC ECFS...RM-
10781 through RM-10787. As of 10 AM Pacific Time on 8 Sep 03, those
seven RMs had a total of 1,101 documents.

The OVERWHELMING CLEAR CONSENSUS that comes from those
comments is the abolishment of the morse code test for a US amateur
radio license, any class.

Not to anyone who understands what the word "consensus" means. You obviously
don't.

However, FCC does not require a consensus in order to make a decision. Nor does
FCC have to enact rules that agree with the majority opinion.

Perhaps FCC will remove all code testing for amateur licenses. I would not be
at all surprised if they did. Or perhaps FCC will retain some form of code
testing for one or more license classes, as has been recommended by W3BE and
others. One thing is clear, though: There is no "OVERWHELMING CLEAR CONSENSUS"
involved.

Maybe the FCC monitors this newsgroup, sees all the senseless bashing of ego
in the code vs. no code wars and will reassign all amateur frequencies to
Clear Channel Communications, Inc for IBOC experiments ?

Dick Carroll; wrote:

Len Over 21 wrote:


In article , "Dick Carroll;"
writes:


JJ wrote:


Len Over 21 wrote:



Incorrect. The word "dipole" refers to anything with two elements and

a

polarity. [a "monopole" is a single element with no polarity]

A dipole ANTENNA refers to a wire type having two elements of wires,
balanced-fed from the center with RF voltage in opposition.

The length of this dipole antenna may be ANY length, from

near-infinitesimal

(fractional wavelength) to many wavelengths.

The radiation pattern of the dipole antenna will vary based on many

factors:

length relative to wavelength, distance above ground or other

imperfect

conductor being the two most affecting patterns.

Len is correct, dipole simply means two separate elements (di
means two). A dipole of a certain length will be a half
wavelength at xx frequency, a quarter wavelength at yy
frequency and a full wavelength at zz frequency and so on.

OK jj, kindly give us ONE example of a 1/4 wave dipole.....

A 40m half-wave dipole used on 80m... :-)


I rest my case....

Which means it is still a dipole but since it is being used on
80 meters it is now a 1/4 wavelength dipole.

In article , "Dick Carroll;"
writes:

JJ wrote:

Len Over 21 wrote:



Incorrect. The word "dipole" refers to anything with two elements and
a
polarity. [a "monopole" is a single element with no polarity]

A dipole ANTENNA refers to a wire type having two elements of wires,
balanced-fed from the center with RF voltage in opposition.

The length of this dipole antenna may be ANY length, from
near-infinitesimal
(fractional wavelength) to many wavelengths.

The radiation pattern of the dipole antenna will vary based on many
factors:
length relative to wavelength, distance above ground or other
imperfect
conductor being the two most affecting patterns.

Len is correct, dipole simply means two separate elements (di
means two). A dipole of a certain length will be a half
wavelength at xx frequency, a quarter wavelength at yy
frequency and a full wavelength at zz frequency and so on.

OK jj, kindly give us ONE example of a 1/4 wave dipole.....

A 40m half-wave dipole used on 80m... :-)

LHA