Tektronix TekRanger 2 TFS3031, Service Manual

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Specifications – TekRanger (serial nos. below B052000)
TFS3031 TekRanger/TekRanger 2 Service Manual
1–25
Table 1–19: Sample Density, Pulsewidth, and Range Combinations (1300 nm Multimode, Option 03)
Pulse
Width
Bandwidth
Overview
Sample
Overview
Interleave
Overview Measurement Spans (km)
Minimum
High
Density
Width
(m)
(MHz)
1
Sample
Spacing
2
Interleave
Factor
3
40 20 10 4 2 1
Density
Sample
Spacing
100 5 10 m 1x D D D D 1.25 m
50 20 10 m 1x D D D D D 1.25 m
20 20 5 m 2x D D D D D 1.25 m
10 20 2.5 m 4x D D D D D 1.25 m
5 20 1.25 m 8x D D D D 1.25 m
1 35 25 cm 40x D D D 25 cm
Note 1: Bandwidth is chosen based on a 3x minimum bandwidth required for pulse width resolution. The minimum bandwidth is
given by
b +
0.35
Ă ( )Ă Ă 10Ă ń
Note 2: Sample spacing is chosen to obtain four data points on pulse.
Note 3: Interleave factor is based on a 10 MHz sampling rate.
Table 1–20: Bandwidth and Transient Characteristics (1300 nm Multimode, Option 03)
Bandwidth (MHz) Risetime Falltime
35 1 m = 10 ns 1 m/10 dB
20 1.75 m = 17.5 ns 1.75 m/10 dB
5 7 m = 70 ns 7 m/10 dB