Fluke 990DSL - Setting up a VF Noise Test; VF Noise Test

990DSL
Users Guide
4-40
VF Noise Test
This test performs a “snapshot” measurement of the voice frequency Metallic
Noise (Nm) and Power Influence (PI) on the pair.
Setting Up a VF Noise Test
To set up a VF Noise test, select the test on the POTS Toolbox and press
D(
Setups).
Refer to Table 4-7 for VF Noise test setup parameters.
Table 4-7. VF Noise Test Setup Parameters
Parameter Settings (default in bold)
Termination Impedance 600 e or 900 e
Termination Mode Terminated or Bridged
Measurement Filter C-Msg, C-Notched, 3K Flat, 15K Flat
Nm Pass Threshold ≤ 30 dBrn (Range = 0 to 99)
P.I. Pass Threshold ≤ 80 dBrn (Range = 0 to 99)
Power Harmonics Units dBm or dBrn
PH C-Message Filter No or Yes