Brett from the SurvivalComms YouTube channel has a nice series going on building field-expedient antennas. This one is a 2M ground plane antenna built from CAT5, a length of coax for the feed line, and some cardboard to spread the radials apart. The basic idea is the same as the "jungle antenna."
Check it out.
BTW, the link to the jungle antenna will take you to Brushbeater's blog, which has a ton of good info and links.
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