Glass Mount Antennas require no alterations to the vehicle and are more permanent than Magnetic Mount Antennas. The antenna base attaches to either side of a piece of the vehicle glass with a 3M VHB adhesive. They work well on automobiles, vans and SUVs but cannot be easily moved from one vehicle to another.
NOTE: Glass Mount Antennas are not recommended for use with wireless amplifiers. The inside and outside antennas must be shielded from each other to prevent oscillation.