Small loop antennas work pretty well for what they are. People just need to realize what they are buying, with the smaller voltage rated tuning capacitor you get smaller RF power handling capability. If you want big power you need a big capacitor. All loops have pretty darn narrow usable bandwidth which means if you spin the dial on your rig very far at all you will need to tweek the tuning on the loop. The smaller you go in loop diameter and the diameter of material the loop is made of means less efficiency. These are good antennas, I have one that I use when out RV camping. Small and easy to take along, I also have a Hustler mobile antenna mounted on the rig, most of the time the loop performs better than the Hustler, but it is more fiddly to keep it tuned. Just my two cents worth coming from someone who has been building and experimenting with loops for awhile.