VF Tests
84
AXS-200/635
Impulse Noise
Impulse Noise
The impulse noise test allows you to measure impulse noise on the circuit
under test.
Test Setup
The
Test Setup
tab allows you to configure parameters for the impulse
noise test.
Each parameter on the pane is
described below.
³
Termination
defines if the unit
uses normal test impedance
termination or high bridging
impedance when the cable is
active or terminated by other
external equipment. For normal
test termination select
TERMINATED
, otherwise select
BRIDGING
.
³
Noise Filter
defines the type of noise filtering in use. If ANSI standard is
used, the available choices are:
NONE
,
C-MESSAGE
,
C NOTCHED
, or
D-FILTER
. For the ITU standard, the choices are:
NONE
,
PSOPHOMETRIC
,
P-NOTCHED
, or
D-FILTER
³
Low Threshold (dBm)
defines the low threshold limits for the impulse
noise test. Specify a value between -
40
and
0
.
³
Separation (dB)
defines the level difference between the low, mid
and high thresholds. Specify a value between
1
and
6
dB.
³
Imp. Noise Measure. Time
defines the duration of the impulse noise
test. The available choices are:
1
,
5
,
10
,
15
,
60 Minutes
, or
24 Hours
.
