The SC343-HT5LDF(D03) from Sinclair Technologies is a Base Station Antenna with Frequency 340 to 355 MHz, Frequency Band 1 340 to 355 MHz, Gain 5.1 dBi, Vertical Beamwidth 28 Degrees, Horizontal Beamwidth 360 Degrees. Tags: Collinear. More details for SC343-HT5LDF(D03) can be seen below.