Fluke CableAnalyzer DSP-4000 Series User Manual page 175

The tables in the sections that follow summarize the guidelines for computing
measurement accuracy for Level III field cable testers.
Attenuation (Insertion Loss)
Parameter
Frequency Range
Step sizes
Amplitude Range
Resolution
Dynamic Accuracy
(up to test limit + 3 dB)
Return Loss for
Baseline/Basic Link
Return Loss for
Permanent Link and
Channel
Specification
1 MHz to 350 MHz. Range is determined by
the selected test standard.
<31.4 MHz: 100 kHz
31.4 MHz to 100 MHz: 200 kHz
100 MHz to 350 MHz: 500 kHz
0 dB to >40 dB
0.1 dB
±0.75 dB, 1 MHz to 250 MHz
20 - 12.5 log (f/100) dB, 1 MHz to 250 MHz;
20 dB maximum
18 - 12.5 log (f/100) dB, 1 MHz to 250 MHz;
20 dB maximum
Maintenance and Specifications
Specifications
100 MHz
NA
NA
NA
NA
± 0.75 dB
20 dB
18 dB
8
250 MHz
NA
NA
NA
NA
± 0.75 dB
15 dB
13 dB
8-15