Exfo CableSHARK P3 VF/DSL Cable Qualifier Manual de usuario Pagina 229

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CableSHARK P3 User Guide
217
Section 15 VF Testing
The CableSHARK is capable of performing voice frequency (VF) tests from 300 Hz to 4 kHz (some tests go
up to 20 kHz). The VF tests include transmitting level/frequency, receiving level/frequency, measuring Noise,
measuring Influence and measuring Impulse Noise.
15.1 Sending Tone (Transmitting Level/Frequency)
The Sending Tone function allows a user to send a single tone or multiple tones to a far end device, be it
another CableSHARK or a EXFO Auto-TIMS III Transmission Impairment Measuring Set. The options under
the Send Tone umbrella include Spot, Variable, 3 Tone Slope and Tracing Tone.
15.1.1 Sending Spot Frequencies
To send a Spot Frequency, select the VF TESTS option from the CABLE TESTS pop-up menu. Select
SEND TONE from the VF TESTS sub-menu. To continue, press RUN/STOP.
SEND TONE
600 OHMS
0
SPOT
EDIT /
SELECT
MAIN
MENU
Test Typ e :
Term Impedance:
Level (dBm):
Frequency Mode:
EF
CHG
SEND TONE
F
IGURE 15.1.1A - SETTING UP THE SPOT TEST
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