The SP4-2.1 from Radio Waves is a Base Station Antenna with Frequency 1.9 to 2.3 GHz, Frequency Band 1 1.9 to 2.3 GHz, Gain 24.6 to 26.3 dBi, Vertical Beamwidth 8.3 Degree, Horizontal Beamwidth 8.3 Degree. Tags: Parabolic. More details for SP4-2.1 can be seen below.