The SD214E-SF2P2SNM(D06) from Sinclair Technologies is a Base Station Antenna with Frequency 138 to 174 MHz, Frequency Band 1 138 to 174 MHz, Gain 10.1 dBi, Vertical Beamwidth 17 Degrees, Power 300 W. Tags: Dipole. More details for SD214E-SF2P2SNM(D06) can be seen below.