Mounting assembly for base station antenna and base station antenna system

A mounting assembly for a base station antenna, wherein the mounting assembly is configured to mount a base station antenna, wherein the mounting assembly comprises:

• a connecting arm provided with a rack having first teeth successive to each other;
• and
• a pressure member having at least one second tooth capable of being pressed against the rack such that the second tooth meshes with the rack, wherein a position of the pressure member on the rack when the second tooth meshes with the rack is configured to define a mechanical tilt of the base station antenna, wherein the pressure member is releasable from the rack such that the pressure member is displaceable along the rack,
• wherein the connecting arm is a U-shaped plate, the U-shaped plate has a base and two side legs, and each side leg is equipped with the rack and the pressure member,
• wherein each side leg has a first long hole, the rack is arranged side by side with the first long hole, and the pressure member is capable of being releasably pressed against the rack by a fastener passing through the first long hole, and
• wherein each side leg is equipped with one pressure member and two racks, the two racks are opposite to each other with respect to the first long hole, the pressure member has two sets of second teeth, the number of each set of second teeth is at least one, and each set of second teeth is configured to function together with a corresponding one rack.