... live A-Scans to easily interpret test results.A Scan Freeze,Display freeze holds waveform and sound path dataB Scan display ... 1.0, 2.0, 6.0 dB and locked.Test Modes, Pulse echo, dual element and thru-transmissionPulser,Tunable Square Wave PulserPulse Repetition Frequency ... from 10 Hz to 1000 HzPulse Energy,Low, Medium and HighDamping, 100, 200, 400 ohmsBandwidth (amplifier bandpass ) 0.5 to 15 MHzGate ...