Not perfect but watch the video, not as pretty as the one below. $75 plus shipping $90 plus shipping. Buy them both and try to hook them in series and get twice the frequency? Probably not! Or hook them in parallel and get twice the power? Probably not! I wonder if you feed them both into a DX-40 you could work it like a Flex with two slices? Probably not. Some seem to have trouble reading this, Use my QRZ email address.