[Antennas] 248ft dipole

[n3drk]

I dont know exactly what one would call this antenna but i have a 248ft
dipole which is about 20ft of the ground at the feedpoint and the ends are
60 ft high. In addition to this, the angle of the ends is 90 degrees apart.
So you name what  i have here. It is fed with 300 ohm tv twinlead. I tune it
with a roller inductor tuner and use it on 160-10 meters.

I have heard that the feedline should and/or should not radiate. The length
of the present feedline is around 60 ft and it does radiate. So what is it?
Should or should not? How do i know the antenna is efficient? And the april
issue of Qst talked about horizontal loop antennas which got me to thinking
that maybe this is the way to go instead of this present antenna system.

Your comments would be appreciated. Thanks in advance and please post to the
reflector along with personal emails.

john