Review on Tram 1189 Glass Mount Antenna: Premium Signal Booster for 150-158MHz Range, Convenient Size (30.20in. x 4.75in. x 1.00in.) by Colton Scheehl

Works very well. No instructions were sent. Please note the following when installing.1. Mount the connector in a horizontal position, that is, the wire is connected from the side, without falling or rising. Clean glass well, it is best to stick when glass is warm.2. Mounting the antenna on the outside when located on the sloping rear window works best if the screw is tightened while attempting to slide the antenna toward the rear of the vehicle. When a strong wind pushes the antenna, it will fall down when loosening the screw.3. The thickness of the glass makes a big difference in how well it performs. It is designed for today's standard automotive glass thickness.4. For windows with heater or antenna grilles, keep the bracket at least 1/2" to 3/4" from the grilles. The heating networks block the signal, the car radio antenna grille. Spring. Plugging 50 watts into your stereo's antenna port may not be good.5. Mount higher on a window to avoid radiation entering the cabin. center from left to right. It also offers some advantage of the roof as a kind of floor layer. Don't expect this antenna to perform as well as a roof mount.6. Don't expect to drive into an open garage, he will likely crash into the open garage door. From time to time, check everything for tightness, otherwise you may soon only be left with the antenna mount.