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The screen displays the loss in dB, and the frequency
of the tone in kilohertz. Press [Enter] to return to the
dB menu.
Wideband Loss
Use this function to measure the loss of a far-end
tone between 20 kHz and 1200 kHz. You must use
a separate instrument to generate the tone at the
far-end.
Longitudinal Balance
Use this function to measure the active Longitudinal
Balance on the pair. The 965DSP automatically goes
off-hook to measure Longitudinal Balance.
Press the [Tab] key to go to Loss. Press the [Left]
arrow key to go to Noise. Press [Enter] to return to
the dB menu. Press [Up] and [Down] to adjust the
speaker volume. Use the blue numeric keys to send
DTMF tones.