In March 2015, Chameleon Antenna announced the availability of their new CHA F-Loop antenna. These types of antennas are commonly referred to as "magnetic loops" (note that the term "magnetic" is slightly misused) and is certainly not a new idea. That said, Chameleon has come up with an interesting design which is geared toward the portable operator. Anyone that has regularly read my reviews knows that I'm a sucker for interesting new ham radio gear, so I bought one to evaluate. After playing with the antenna for nearly 6 months, I feel that I finally have enough "behind the wheel" time to give an honest evaluation. 30 meter contacts: This picture pretty much shows how I've spent the better part of the summer months playing with this antenna: 40 meter sweep: In summary, the Chameleon CHA F-Loop is a very clever, well-made antenna that is geared toward the operator that requires convenience and portability in a small package. If you have the funds and means to use the aluminum radiator upgrade, you will definitely experience a nice difference in performance. You need to understand that these types of antennas are no substitute for a full-sized antenna, but you can have a ton of fun, for sure. You will have much better success using CW or digital modes like PSK-31 and you should definitely try WSPR with with these antennas. Keep an eye out for good band openings - when you combine QRP with a compromise antenna, you definitely need to do anything you can to improve your odds. Over the next few months, I plan on taking the antenna in its molle bag with the Elecraft KX3 on a local backpacking trip. Because the antenna takes less than 5 minutes to set up, I keep finding new ways to experiment with it and am constantly drawn to trying new things. The price of this antenna isn't cheap, but nothing about the construction of it is, either. I'm pretty happy with the purchase and plan on keeping it to continue exploring what I can accomplish with it.