Take a length of 300 ohm twinlead. Short the far end, End feed one side of
the close end, and leave the other side disconnected.

What do I have?

I know if I short both ends, I have a wide(er) bandwidth end fed random wire.

Is it still an end fed random wire with an electrical length of twice its
physical length?

Something completely different?

If for example, if I have 10 meters of space, and hang it, will I have
a 20 meter long random wire, which would sort of be a 40 meter band
1/2 wave end fed antenna? Or would I have an odd 10 meter long end
fed antenna (for 20m?)

Can it be switched between the two by adding a shorting switch at the close
end? Open it would be for 40m, and closed for 20?

TIA,

Geoff.


--
Geoffrey S. Mendelson, N3OWJ/4X1GM/KBUH7245/KBUW5379
It's Spring here in Jerusalem!!!