The SG101-SF1SNM(FXXXX) from Sinclair Technologies is a Base Station Antenna with Frequency 30 to 50 MHz, Frequency Band 1 30 to 50 MHz, Gain 2.1 dBi, Vertical Beamwidth 87 Degrees, Horizontal Beamwidth 360 Degree. More details for SG101-SF1SNM(FXXXX) can be seen below.