Hi,
I think of buying a MP-1 from Super Antennas for balcony operation (I live
in a small appartment with no possibility for a full blown dipole). I'm
quite new to antenna modelling so I need some help for this one. Anyone
can help me with this model? How do I model the coil used? Are there any
already existing EZNEC files available for this antenna?

Thanks in advance.

vy 73 de Jochen, DG1PSI

Jochen Schaeuble wrote:
Hi,
I think of buying a MP-1 from Super Antennas for balcony operation (I live
in a small appartment with no possibility for a full blown dipole). I'm
quite new to antenna modelling so I need some help for this one. Anyone
can help me with this model? How do I model the coil used? Are there any
already existing EZNEC files available for this antenna?

Thanks in advance.

vy 73 de Jochen, DG1PSI

Jochen, The MP-1 is a short loaded vertical. The EZNEC file
"Vertical over real ground" will come close if you modify it to model
the MP-1.
The coil is modeled as a "load" placed at the proper spot on the
vertical. The inductive load should be large enough to cancel the Xc
the short vertical represents.
Eznec will tell you many parameters about the antenna. It will not
directly tell you that it will be poor on 80 and 40 meters due to
ground losses, and losses in the antenna. It should do OK on 20 meters
up.
Gary N4AST

Hello Gary,
thanks for your comments. I guess this will get me started.

vy 73 de Jochen, DG1PSI

On Sun, 28 Aug 2005 23:07:25 +0200, wrote:


Jochen Schaeuble wrote:
Hi,
I think of buying a MP-1 from Super Antennas for balcony operation (I
live
in a small appartment with no possibility for a full blown dipole). I'm
quite new to antenna modelling so I need some help for this one. Anyone
can help me with this model? How do I model the coil used? Are there any
already existing EZNEC files available for this antenna?

Thanks in advance.

vy 73 de Jochen, DG1PSI
Jochen, The MP-1 is a short loaded vertical. The EZNEC file
"Vertical over real ground" will come close if you modify it to model
the MP-1.
The coil is modeled as a "load" placed at the proper spot on the
vertical. The inductive load should be large enough to cancel the Xc
the short vertical represents.
Eznec will tell you many parameters about the antenna. It will not
directly tell you that it will be poor on 80 and 40 meters due to
ground losses, and losses in the antenna. It should do OK on 20 meters
up.
Gary N4AST