Here's an alternative. It's a small tuned counterpoise. It's explained and demonstrated in the video.
These notes on ground tuning units by Alex VK2HAS based on work by G4AKC are worth reading. (pdf) There's also VK6OP's video, again inspired by G4AKC.
PS: Thinking of more things you can do with amateur radio? This book can help. Under $US 5 as an ebook or available in paperback as well. Many favourable reviews.