Exfo FTB-635 Wideband Copper and DSL Test Module Manual do Utilizador Página 39

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Copper Tests: Using the Main Menu
Copper and xDSL Tests 31
Cable Book
Capacitance T-R specifies a value for the capacitance per length
constant.
Capacitance T/R to GND specifies a value for the capacitance per
length to ground constant.
Resistance specifies a value for the resistance constant of the cable.
Attenuation @ 300 kHz specifies a value for the reduction in signal
strength or insertion loss of the cable.
Velocity of propagation for the cable as a ratio of the speed of light.
Temperature specifies the temperature of reference at which all cable
parameters have been measured, in either F (Fahrenheit) or C
(Celsius) units. The measurement units are updated based on the
Temperature settings in the Application Settings, General on page 66.
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