The SG238M-SF2SNF from Sinclair Technologies is a Base Station Antenna with Frequency 136 to 154 MHz, Frequency Band 1 136 to 154 MHz, Gain 2.1 dBi, Vertical Beamwidth 71 Degrees, Horizontal Beamwidth 360 Degree. More details for SG238M-SF2SNF can be seen below.