If that is true, then there is no such thing as a 5/8 wave antenna. They
would be 3/4 wave antennas.

since when does 5/8 = 3/4 ?
last time I checked, 3/4 = 6/8


Sense always.
A two meter 5/8 wave length (48") whip does not work
very well. A 3/4 wave length whip will tune
up fine (low SWR) but has a very high angle
of radiation, still does not work well.

Take 1/8 wave (about 9 1/2 inches) of the
3/4 wave and turn it into a coil. And you
end up with an antenna about 48" tall that works
real well. (5/8 wave = 48")

I guess if you want to follow the CB Hipe about
antennas, it's up to you.

You think a 3 ft. 11 meter antenna that claims to
be of 5/8 wave antenna, works like a true 5/8 wave
length Antenna - - I think I will stop here.

I have a lot more important things I should be doing.
Arrow Antenna lost its lease on our building, wo we
had to move. I have a lot of equipment to get hooked
up again so we can get back into the production of
real antennas.

73 Al Lowe N0IMW
ArrowAntenna.com
911 East Fox Farm Road. #2
Cheyenne, WY 82007

307-638-2369
Fax 307-638-3521

Arrow,
One of those important things might be to explain to
me how 9 1/2" is a 1/8 wave at what frequency? I thought
we were talking 10 meters...
'Doc

But you have to remember that a 5/8 lamda whip is really trying to be a
1.25-lambda dipole with half of the dipole kind of provided by the perfect
conductor infinite ground plane.

Just like a 1/4-lambda whip (vert) is similarly "equivalent" to a vertical
1/2-wave antenna.

A 1.25-lambda doublet (I won't call it a dipole for obvious reasons) has a nice
broadside gain over a 1/2-wave dipole.

Hey, if you orient it vertical, you have an omnidirectional "beam".

"Load your downspout!"

Jack, K9CUN

Arrow,
One of those important things might be to explain to
me how 9 1/2" is a 1/8 wave at what frequency? I thought
we were talking 10 meters...
'Doc

Hello, Doc
As quoted below 2 meters (146 MHz.)
I use two meters because I have all the numbers in
my head, I don't have to use a calculator.
I don't make 10 meter antennas.

73 Al Lowe N0IMW

A two meter 5/8 wave length (48") whip does not work
very well. A 3/4 wave length whip will tune
up fine (low SWR) but has a very high angle
of radiation, still does not work well.

Take 1/8 wave (about 9 1/2 inches) of the
3/4 wave and turn it into a coil. And you
end up with an antenna about 48" tall that works
real well. (5/8 wave = 48")