If you want gain at the expense of everything, then the science usually dictates that to get gain at one frequency, performance elsewhere is not so good. Gain, however is only part of the story. Orientation and height come into it. So reliable commercial radio systems often have small and inefficient antennas - but the remote antenna systems are up high, and have consistent performance, so the mobiles can be in pockets, inside jackets, paying on the vehicle dashboard and used in virtually any orientation. The hundreds of YouTube videos show the gainer antennas being tested to get the absolute maximum distance, but the minute the radio is lowered a bit, the antenna tilted, or somebodies body comes between the two radios, they die. Stupidly long antennas on tiny radios always make me laugh.
