Specifications – TekRanger (serial nos. below B052000)
1–46
TFS3031 TekRanger/TekRanger 2 Service Manual
Table 1–52: Vertical System Dynamic Range (Extended Range 1550 nm Singlemode, Option 08)
Characteristic
Performance Requirement
Supplemental Information
Dynamic Range
Pulsewidth
2000 m
1000 m
500 m
100 m
50 m
20 m
10 m
5 m
1 m
SNR=1
Typical
28 dB
30 dB
26 dB
24 dB
26 dB
18 dB
16.5 dB
13 dB
11.5 dB
10 dB
5.5 dB
Dynamic range SNR=1 is defined
as the difference between the
extrapolated backscatter level at
the start of the fiber and the RMS
noise level.
Based on high APD and amplifier
gains. Low APD gain reduces 4
dB. Low amplifier gain reduces 5
dB.
Measured using a 4 km test fiber
(Corning SMFĆ28, 8.5
m
m core,
0.12 NA) after 3 minutes of
averaging.
A 0.5 dB front panel loss is
assumed.
Temperature Coefficient of
Dynamic Range
-0.15 dB/
o
C for T
25
o
C
Summary of Contents for TekRanger 2 TFS3031
Page 5: ......
Page 27: ...Module Level Service 1 4 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 39: ...Battery Recharging and Replacement 1 16 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 129: ...Accessories and Options 1 106 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 133: ...Theory of Operation 2 4 TFS3031 TekRanger TekRanger 2 Service Manual...
Page 265: ...Replaceable Parts 6 14 TFS3031 TekRanger TekRanger 2 Service Manual...
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