On Jul 26, 2:05 pm, bpnjensen wrote:
On Jul 26, 1:10 pm, RHF wrote:





The Question is still out there . . .
Anyone care to venture and Answer ?

I will try, but the answer is simplistic (probably overly so) and
could well be wrong-o.

Given a small urban-suburban Lot with Limited Space.

Mounting one of these two Dipoles with the Center at
the Corner of the Lot with each of the Arms extended
alone adjacent sides {Right Angle} and Sloping down.

Would this Antenna now function more or less like :

1 - A single Inverted "V" Dipole Antenna ?

2 - Two Sloper Antennas set at Right-Angles to each other ?

What would your choice be # 1 or # 2 ?

pondering the imponderable - iane ~ RHF

My guess, and this is because the antenna remains connected at the
center (as opposed to two slopers which would presumably have no
inherent electrical connection) is that it would function more as No.
1. However, because the configuration would force the antenna to be
mounted at an angle, I suspect that the reception pattern would be
askew, not only horizontally but vertically as well. The side lobes
would likely aim upward on the side facing into the yard, and downward
on the side aiming outward from the corner. If you want to get
skywave from the direction of the yard, that could be a very good
thing, although I'm not sure that practically it would make a big
difference.

This is not all that different from what I have, although the legs on
my antenna are only off 180 degrees by a fraction (maybe 10 degrees)
rather than at right angles.

Bruce Jensen

BpnJ - Good Answer - I honestly don't know "if"
It is Right or Wrong -but- It is a Good Answer. )

tyvm ~ RHF

- Glad you like it! Something else I thought of...
- just thinkin' out loud here...

- One more thing to consider is that (at least as I understand it),
- when portions of your antenna slope, either as a sloper or as
- an inverted V, you get some lobing off the upward sides of the
- slopes as well, so that overall your antenna winds up being
- more omnidirectional - or at least has lobes in more directions
- than just broadside.

BpnJ,

You are right - A Dipole Antenna only functions as
a Dipole when it is 'cut' to size and 'mounted' at the
right Height and 'rigged' Flat. Then it is usually
consider lossy Off-the-Ends and best Off-the-Sides.

When notheing else changes except 'reducing' the
Height of the Ends : Then the Arms of the Dipole
have a Negative {Down} Slope toward the Ends
-and- the reception Off-the-Ends improves.

As the Slope increases and the Apex Angle goes
from 180* {Flat} to 120* {30* Slope} to 90* {45* Slope}
the Dipole goes from what is consider a Bi-Directional
Antenna to an Omni-Directional Antenna.

- In this regard, an Inverted V dipole may not be so
- different from two slopers mounted back to back
- and either harnessed or phased...so, although the
- system you describe may electrically be more like
- No. 1, the two may not be all that different from one
- another in practice.

Yes to my way of think taken together both would
perfrom about the same.

But the key thing as you correctly point out is
that Electrically it is still wired as a Dipole with
a Common Feed-in-Line and that is why it is not
Two Slopers -because- If it were you would be
able to select one or the other or both and use
them as two independent Antennas. Especially
when they are Rigged in a Corner at 90*.

SO - My Conclusion After Thinking About It Is :
A Corner Rigged Dipole Antenna was Don't
Waste the Time -and- Instead install a Pair
of Flat Wires or Slopers with two separate
Feed-in-Lines so that you could get the benefit
of each Antenna's use independently.

- Now, if you take that and bend it 90 degrees
- horizintally in the middle...well, I can't say that
- I know for certain. It would be fun to see a
- measured lobe pattern for these configs,
- especially when many people in this situation
- might want to give it a try.
- BJ

The so-called 'half-a-swastika' shaped Dipole
Antenna is usually executed Across a Diagonal
{Two Corners} and along the sides of a small
piece of property : So the Bend is 45* and it
looks like a "Z" when viewed from the top.
- - - It requires 4-Support Points and for the
effort a Loop Antenna could be the better
choice.

~ RHF