EXFO CableSHARK P3 VF/DSL Cable Qualifier - Manual (Page 191)

CableSHARK P3 User Guide
179
9.2 Spectral Detective Samples
The following figures show examples of broadband technology disturbers.
MAIN
MENU
E F CHG
SHOW
REF ZOOM IN
VERT
ZOOM IN
HORIZ
dBm/Hz
PSD
Cursor Frq. =
= -45.67 dBm/Hz
1000.50 kHz RMS Noise
Impedance
Noise Filter =
=
= -65.5 dBm
Bridging
No Filter
dBm
-10
-40
-70
-100
-130
TEST
SETUP
20
-10
-40
-70
-100
Press or to move cursor
PROBABLE SIGNAL - T1 / 2 Mbit/s (E1)
SAVE/
UPLOAD
0.00 552 1104 2208 kHz 1656
F IGURE 9.2A – T1 D ISTURBER (QRSS)
MAIN
MENU
E F CHG
SHOW
REF ZOOM IN
VERT
ZOOM IN
HORIZ
dBm/Hz
PSD
Cursor Frq. =
= -70.56dBm/Hz
1000.50 kHz RMS Noise
Impedance
Noise Filter =
=
= -65.5 dBm
Bridging
No Filter
dBm
-10
-40
-70
-100
-130
TEST
SETUP
20
-10
-40
-70
-100
Press or to move cursor
PROBABLE SIGNAL - undetermined
SAVE/
UPLOAD
0.00 552 1104 2208 kHz 1656
F IGURE 9.2B – T1 D ISTURBER (1 IN 8 P ATTERN )
MAIN
MENU
E F CHG
SHOW
REF ZOOM IN
VERT
ZOOM IN
HORIZ
dBm/Hz
PSD
Cursor Frq. =
= -79.27dBm/Hz
1000.50 kHz RMS Noise
Impedance
Noise Filter =
=
= 6.67 dBm
Bridging
No Filter
dBm
-10
-40
-70
-100
-130
TEST
SETUP
20
-10
-40
-70
-100
Press or to move cursor
PROBABLE SIGNAL - ISDN
SAVE/
UPLOAD
0.00 552 1104 2208 kHz 1656
F IGURE 9.2C – 2B1Q ISDN S PECTRAL A NALYSIS
MAIN
MENU
E F CHG
SHOW
REF ZOOM IN
VERT
ZOOM IN
HORIZ
dBm/Hz
PSD
Cursor Frq. =
= -39.45 dBm/Hz
1000.50 kHz RMS Noise
Impedance
Noise Filter =
=
= 19.81 dBm
Bridging
No Filter
dBm
-10
-40
-70
-100
-130
TEST
SETUP
20
-10
-40
-70
-100
Press or to move cursor
PROBABLE SIGNAL - ADSL Down
SAVE/
UPLOAD
0.00 552 1104 2208 kHz 1656
F IGURE 9.2D – ADSL AT CO SIDE