Center Frequencies; Vdsl Spectrum; Frequency Range - 3M Dynatel 965AMS User Manual

DSL>DSL Spectrum Analyzer>Application Notes
Spectrum analysis allows you to visually see a disturbing
signal's shape by reading and displaying the level of noise in a

frequency range.

The shape can be caused by ADSL, ISDN, HDSL, T1 or VDSL.
This chart shows the ADSL2+ spectrum with common disturbers
and chart 2 shows the VDSL spectrum with potential disturbers.
DDS ISDN HDSL
28 40
kHz kHz
20 ADSL 138
kHz Upstream kHz
Nyquist
Frequency
US 0 DS 1
1.1
MHz
16
3M Dynatel Advanced Modular System 965AMS 30-MHz Spectrum Analyzer
™ ™

Center Frequencies

T1
196 772
kHz kHz
140 ADSL
kHz Downstream

VDSL Spectrum

US 1 DS 2
3.75 5.2
MHz MHz
AM Radio 680 kHz+
1100
kHz Downstream
US 2 US 2
8.5 12
MHz MHz
ADSL 2200
kHz
30
MHz