The SP4-1.8 from Radio Waves is a Base Station Antenna with Frequency 1.7 to 1.9 GHz, Frequency Band 1 1.7 to 1.9 GHz, Gain 23.6 to 24.6 dBi, Vertical Beamwidth 9.3 Degree, Horizontal Beamwidth 9.3 Degree. Tags: Parabolic. More details for SP4-1.8 can be seen below.