SINCLAIR's SG401-SF1SNM ground plane omni antenna operates in the SMR band with frequency range, 806 – 890 MHz. This rugged, light weight, and easy-to-install antenna has unity gain, 0 dBd, and can be stocked for reuse due to it's broad band. 360 deg. horizontal beamwidth and 80 deg. vertical beamwidth. N Male.