Topband: sloper

[Federico Zanini - IK3UMT]

Hi All

I need a reduced size half sloper project for topband.
Maximum lenght must be 20mt and must be center or toward end loaded (not
anchor point load as seen in several project)and it must NOT resonating in
40 or 80 mt band (as interacts with other antennas).
For information, my tower is 16mt tall, grounded.

Can somebody help me in find something ? (even a load calculation software
is ok)

Thank you.

73 de Federico , IK3UMT