The SY203-SF7SNM(C) from Sinclair Technologies is a Base Station Antenna with Frequency 167 to 174 MHz, Frequency Band 1 167 to 174 MHz, Gain 7.6 dBi, Vertical Beamwidth 61 Degrees, Horizontal Beamwidth 87 Degree. Tags: Yagi. More details for SY203-SF7SNM(C) can be seen below.