89
DSL Loss (/SA option only)
Use this function to measure loss from the far-end to 
near-end using a tone between 20kHz and 1.2MHz. 
You must use a separate instrument to generate the 
tone at the far-end. 
Press the [Tab] key to move between metallic noise 
power measurement across the pair and longitudinal 
noise power of the conductors to ground. The 
highlighted reading is ‘live’ and continuously 
updated.
The screen displays noise power (referenced to  
-90dBm), selected service type, noise weighting 
filter, and the metallic terminating impedance.
The screen displays the signal level in dBm, the 
frequency of the tone in kHz, the selected service 
type, and the line terminating impedance. Press 
[Enter] to return to the DSL menu.
DSL Noise (/SA option only)
Use this function to measure wideband metallic and 
longitudinal noise on a pair. Connect the red and 
black test leads to the pair and green lead to ground.