Includes free male SMA to male SMA adapter. Full 1 year warranty and support direct through Nooelec!. Though compatible with most SDRs with DC (bias-tee) power, we recommend use in conjunction with NESDR SMArTee (available on , item ID B079C4S2BT). The amplifier must be powered through the output SMA (bias-tee) and requires only ~30mA of current. Each module contains 2 ultra-low-noise LNAs (single package), sandwiched around a custom-designed, high-performance SAW filter centered at 1542MHz. SAWbird iO is a self-contained LNA module designed for capturing L-Band signals, particularly Inmarsat AERO and STD-C.