The frequency band within which the antenna performs at the stated specifications
The relative amplification of the antenna with respect to an equivalent isotropic antenna, expressed on the decibel logarithmic scale.
The signal strength loss introduced by the cable connected to the antenna expressed on the decibel logarithmic scale.
The resulting amplification of the antenna paired with its cable.
The orientation of the electrical field which the antenna is optimized to receive. If the transmitting and receiving antennas are both linear polarized, then turning one 90° so that they are cross polarized will reduce the range significantly.
Voltage Standing Wave Ratio (VSWR) is the ratio of maximum voltage to minimum voltage along the line. Expresses the degree of match between the transmission line and the terminating element (antenna). When VSWR is 1:1 the match is perfect, a VSWR of 1.5:1 corresponds to 96% power efficiency.
Width of the antenna beam on the horizontal plane expressed in degrees.
Height of the antenna beam on the vertical plane expressed in degrees.