Tektronix TekRanger 2 TFS3031, Руководство по обслуживанию

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Specifications – TekRanger 2 (serial nos. B052000 and above)
1–70
TFS3031 TekRanger/TekRanger 2 Service Manual
Table 1–82: System Measurement Accuracy (1300 nm Multimode, Options 03)
Characteristic Performance Requirement Supplemental Information
Distance ±5.0 m Verified on the TFS3031 Distance
Accuracy Test Fixture on every
instrument built in Manufacturing
and on instruments that are
repaired in Service.
Intellitrace only.
Does not take into account errors
in index of refraction and cabling
factor.
Table 1–83: 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 1–84: Bandwidth and Transient Characteristics (1300 nm Multimode, Option 03)
Bandwidth (MHz) Risetime Falltime
35 1 m = 10 ns 1 m/10 dB
Controlled by system
software and not directly
20 1.75 m = 17.5 ns 1.75 m/10 dB
software and not directly
checked in the
performance verification
5 7 m = 70 ns 7 m/10 dB
performance verification
procedure.