1 wide measuring range 2.rechargeable Li-ion battery 3.Range:0 ... for optimum performance.Gain:0 dB to 110 dB adjustable in selectable steps 0.1 dB, 2 dB, 6 dB, and locked.GatesTwo fully ... in selectable resolution 0.1, 1.0, 2.0, 6.0 dB and locked.Test Modes: Pulse echo, dual ... wave, RFSystem Linearity: Horizontal: +/-0.2% FSW, Vertical: 0.25% FSH, Amplifier Accuracy +/-1 dB.Reject (suppression): 0 to 80% ...