The SG238-HF2SNM from Sinclair Technologies is a Base Station Antenna with Frequency 136 to 160 MHz, Frequency Band 1 136 to 160 MHz, Gain 2.1 dBi, Vertical Beamwidth 71 Degrees, Horizontal Beamwidth 360 Degree. More details for SG238-HF2SNM can be seen below.