Simple Ham Radio Antennas--2 Meter Loop Antenna. Post #798.
If you're having difficulty viewing this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=ZEzSlUqPEWw. Sometimes, a mistake can turn out to be something interesting and useful. In this video from KB3TQO, an experimental 70 cm loop antenna was enlarged by accident and turned into a nice, wide banded loop antenna for 2 meters. As some readers have pointed out, the antenna may be wide banded because of the ferrite balun used in the antenna. At VHF frequencies, this balun will serve as a dummy load, leaving only a few watts or less to become a usable signal. The antenna would be more efficient if the 4:1 balun was made from coaxial cable. However, the antenna tunes nicely, presents a good load to the transceiver, and does get contacts on the 2 meter band. Part of the fun of amateur radio is designing antennas such as this, even if there are significant losses in the design. We learn from our mistakes....