The Tektronix 1502C transmits 200 ps rise time step pulses down the cable under test. The reflected energy is displayed on the LCD and the user can then determine the type of fault. When testing 50 ohm cable with a velocity of propagation equal to 0.66, the 1502C Metallic TDR allows the determination of 0.5 ohm cable faults. Multiple faults as close together as 0.6 inches can be resolved.
The 1502C has a menu selectable ohms-at-cursor function that allows direct readout of impedances. The 1502C is matched to 50 ohm cables, but may be used on others by adjusting the front panel vertical scale control or using optional impedance adapters. The 1502C has a maximum range of 2000 feet and is the best MTDR for high resolution fault location on short lengths of cable.
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