Radio amateurs have used all kinds of objects to support their HF/VHF/UHF antennas--including in this case a helium filled balloon. According to the video's producers, Glenn (N6GN) and John (K6PZB), results were excellent during the brief test with an approximate 40 dB signal improvement over previous antennas.
Here are some of their comments:
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Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).