Roy, W7EL wrote:
"That`s interesting.(I don`t know why you want fat. It will give you
lower gain.) How much lower? Why?"

It`s a fact. Fat antennas have more bandwidth, and that is inversely
proportional to Q. Teducing antenna Q, by fattening the antenna, reduces
the antenna potential by about the same factor.

Best regards, Richard Harrison, KB5WZI

Brad wrote:
"I want to build a fat dipole for FM listening for my brother-in-law,
who refuses to get a rotor."

A twin-lead dipole may be fat enough. These are sold at Radio Shack and
other outlets for just a few dollars and can be used to determine if
such an approach is satisfactory. You can still build an "improved
antenna" if the bought antenna works on site.

Best regards, Richard Harrison, KB5WZI

Fat antennas have more bandwidth, and that is inversely
proportional to Q. Teducing antenna Q, by fattening the antenna, reduces
the antenna potential by about the same factor.

Best regards, Richard Harrison, KB5WZI

===========================
Richard, If you got this off Terman and Kraus then Terman and Kraus are a
couple of the oldest of old wives.
---
Reg

On Mon, 31 Jan 2005 16:55:03 +0000 (UTC), "Reg Edwards"
wrote:

If you got this off Terman and Kraus then Terman and Kraus are a
couple of the oldest of old wives.

Reggie,

This has got to be the height of your boredom to force your nemesis
into the thread to then complain about them. Sounds unmistakably like
the envy of a hausfrau.

73's
Richard Clark, KB7QHC

On Mon, 31 Jan 2005 10:54:43 -0500, Buck wrote:

(Caveat emptor means buyer beware, what does caveat lector mean?)

Hi Buck,

You got the Caveat part down, but I'm not sure if ***** is being coy,
or has taken the wrong translation. His intent may be (if read
literally) that "reader beware." However, this is not the same as the
meaning of lector, where the meaning would offer "beware reader." It
is a subtle distinction at best leading to the same caution, but
Lector is one who reads (imparts information) to others (instead of
being a silent reader, such as anyone "reading" this post).

73's
Richard Clark, KB7QHC

Reg, G4FGQ wrote:
"Richard, If you got this off Terman and Kraus then Terman and Kraus are
a couple of the oldest of old wives."

I can`t blame them because I wrote without consulting them first.

Terman does in fact say about what I said. I haven`t checked with Kraus
yet. In his 1955 edition on page 921 Terman writes:
"The second possible way to achieve broad-band characteristics consists
in starting with a resonant antenna (as opposed to a rhombic for
example), but so proportioning this antenna as to minimize resonance
effects. Thus a resonant antenna employing a thin wire is equivalent to
a moderately high Q system and so has a relatively narrow frequency
band.
However, if the diameter of the antenna is made large, the effective Q
is very substantially reduced with resulting increase in bandwidth."

Best regards, Richard Haarrison, KB5WZI

Ah I have been misled by my latin teacher
so must now clarify I guess
--
Caveat Lector - Reader Beware



"Richard Clark" wrote in message
...
On Mon, 31 Jan 2005 10:54:43 -0500, Buck wrote:

(Caveat emptor means buyer beware, what does caveat lector mean?)

Hi Buck,

You got the Caveat part down, but I'm not sure if ***** is being coy,
or has taken the wrong translation. His intent may be (if read
literally) that "reader beware." However, this is not the same as the
meaning of lector, where the meaning would offer "beware reader." It
is a subtle distinction at best leading to the same caution, but
Lector is one who reads (imparts information) to others (instead of
being a silent reader, such as anyone "reading" this post).

73's
Richard Clark, KB7QHC

I also wrote:
"Fat antennas have more bandwidth, and that is inversely proportional to
Q. Reducing antenna Q, by fattening the antenna, reduces the antenna
potential by almost the same factor."

Here is support from Ed Laport`s "Radio Antenna Engineering page 37":
"It is seen that bandwidth is inversely proportional to antenna (or
total circuit) Q. To decrease Q, the same design considerations are
required as for the reduction of antenna potential."

Best regards, Richard Harrison, KB5WZI

On Mon, 31 Jan 2005 13:45:59 -0800, "Caveat Lector"
wrote:

Ah I have been misled by my latin teacher
so must now clarify I guess

Hi OM,

It could easily be my own mistake through attribution of the English
derivation from Latin. Luckily no one ('arry palms) is demanding the
root form of the ancient greek assembled phontetically as a cross
check.

73's
Richard Clark, KB7QHC

FB Richard -- now back to antennas -- I really enjoy the posts here -- very
informative.
--
Caveat Lector (Reader Beware)



"Richard Clark" wrote in message
...
On Mon, 31 Jan 2005 13:45:59 -0800, "Caveat Lector"
wrote:

Ah I have been misled by my latin teacher
so must now clarify I guess

Hi OM,

It could easily be my own mistake through attribution of the English
derivation from Latin. Luckily no one ('arry palms) is demanding the
root form of the ancient greek assembled phontetically as a cross
check.

73's
Richard Clark, KB7QHC