A. Specifications
A.1. Electrical Specifications
Characteristic Specifications Notes
Reflected rise time, CT100B
10-90%
150 ps typ, 200 ps max 10 to 90%, into 50 Ω
Reflected rise time, CT100B
20-80%
100 ps typ, 150 ps max 20 to 80%, into 50 Ω
Reflected rise time, CT100HF
10-90%
100 ps typ, 130 ps max 10 to 90%, into 50 Ω
Reflected rise time, CT100HF
20-80%
80 ps typ, 90 ps max 20 to 80%, into 50 Ω
Jitter 15 ps max
(peak-to-peak)
< 1 ps rms typ.
Output impedance 50 Ω ± 2%
Pulse amplitude 300 ± 10 mV Averaged value into 50 Ω
Pulse width Fixed: 1.000 − 2.000,
5.000 − 6.000,
20.00 − 21.00µs
Averaged values change
for short, medium, and
long cable length
settings, respectively
Pulse repetition time Fixed: 4.000 ± 0.02,
20.00 ± 0.02,
80.00 ± 0.02µs
Averaged values change
for short, medium, and
long cable length
settings, respectively
Sequential sampling rate Fixed: 250.0 ± 0.2,
50.00 ± 0.04,
12.50 ± 0.02 kHz
Averaged values change
for short, medium, and
long cable length
settings, respectively
Vertical scale 0.5 mρ/div
Vertical accuracy ±3% full scale < ±1% of measurement
typ.
Vertical position Any trace point is
movable to the center of
the screen.
Sampling efficiency, CT100B 50 to 90% into 50 Ω
Sampling efficiency, CT100HF 45 to 90% into 50 Ω
Noise ±5 mρ peak-to-peak
Input susceptibility ±1 A max into diode clamps
CT100B TDR Cable Analyzers Operator’s Manual 111
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