The SY307R-HF2SNF from Sinclair Technologies is a Base Station Antenna with Frequency 450 to 470 MHz, Frequency Band 1 450 to 470 MHz, Gain 12.1 dBi, Vertical Beamwidth 42 Degrees, Horizontal Beamwidth 48 Degree. Tags: Yagi. More details for SY307R-HF2SNF can be seen below.