80
Sidekick
®
Plus Test Set
The impulse noise graph shows hits detected over time
since the test was started. The remaining test time is
displayed on the top line and the total hits detected are
shown on the right portion of the screen. If more than
one threshold has been set, then the number of hits
exceeding each threshold are shown.
The cursor position is shown by the triangle icon. The
cursor displays the time period for a horizontal location
on the graph. The cursor position may be moved using
the left (
4
) and right (
6
) arrows on the keypad.
The user can see a summary of the results by pressing
F1 Meter.
A total count of all hits detected since the
test started will be shown on the summary screen.
Configuring Impulse Noise Settings
The user may configure the impulse noise settings by
pressing
F4
from the Impulse Noise Test screen.
The Impulse Noise Setup screen provides the user with
the test options available for performing impulse noise
measurements. Each option can be reached by using
the up (
2
) or down (
8
) buttons:
•
Measurement Filter:
Selects the filter used when
detecting impulses. Available filters are:
C – For voiceband circuits (~700 Hz to 3 kHz)
E – For ISDN circuits (1 kHz to 50 kHz)
F – For HDSL circuits (5 kHz to 245 kHz)
G – For ADSL circuits (20 kHz to 1.1 MHz)
V9 – For ADSL & VDSL circuits (up to 8.8 MHz)
V17 – For VDSL circuits (up to 17.7 MHz)
V35 – For VDSL circuits (up to 35 MHz)
Each can be selected by using the left (
4
) and right
(
6
) buttons. The default value is the V filter.
•
Termination Mode:
Selects the termination resis-
tance for the test. For the C Filter, this value is fixed at
“600Ω”. For the remaining filters, the user can select
135Ω, 120Ω, or 100Ω. The default value depends on
the filter selected.
Summary of Contents for 1155-5003
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