Go for a twinlead dipole about 5 feet long

Like I said in the post you replied to, I have about half this.

Try starting with a twinlead dipole of this length, and shape it into
a near-circle with around 6" between the ends of the arms.

This will give you a vaguely-omnidirectional pattern, using an antenna
which fits into a 2' circle.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
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