TEKTRONIX 1503C

The Tektronix 1503C Metallic-cable Time-Domain Reflectometer (MTDR) is a cable test instrument that uses radar principles to determine the electrical characteristics of metallic cables. The 1503C generates a half-sine wave signal, applies it to the cable under test, and detects and processes the reflected voltage waveform. These reflections are displayed in the 1503C liquid crystal display (LCD), where distance measurements may be made using a cursor technique. Impedance information may be obtained through interpreting waveform amplitude. The waveform may be temporarily stored within the 1503C and recalled or may be printed using the optional dot matrix strip chart recorder, which installs into the front-panel Option Port.

The 1503C may be operated from an AC power source or an internal lead-acid battery that supply a minimum of five hours operating time (see the Specifications appendix for specifics).

The 1503C is intended to be operated from a power source that will not apply more than 250 volts RMS between the supply conductors or between either supply conductor and ground. A protective ground connection, by way of the grounding conductor in the power cord, is essential for safe operation. The AC power connector is a three-way polarized plug with the ground (earth) lead connected directly to the instrument frame to provide electrical shock protection. If the unit is connected to any other power source, the unit frame must be connected to earth ground. Power and voltage requirements are printed on the back panel. The 1503C can be operated from either 115 VAC or 230 VAC nominal line voltage at 45 Hz to 440 Hz, or a battery pack.