DVB-T2 Configuration and Settings
R&S
®
SMCVB-K164
40
User Manual 1179.0974.02 ─ 02
Used Bandwidth
Displays the used bandwidth.
The used bandwidth depends on the channel bandwidth, the FFT size and the carrier
mode as described in
You can set the carrier mode via "FFT Size", e.g. "32K
Ext." means 32K FFT size using
extended carrier mode.
Table 4-2: Dependencies of the used bandwidth
"Channel Bandwidth" Elementary frequency
"Used Bandwidth"
Normal carrier mode
"Used Bandwidth"
Extended carrier mode
1.7
MHz
131/71
MHz
1.535156
MHz
1.567589
MHz
5
MHz
40/7
MHz
4.754464
MHz
4.854911
MHz
6
MHz
48/7
MHz
5.705357
MHz
5.825893
MHz
7
MHz
56/7
MHz
6.656250
MHz
6.796875
MHz
8
MHz
64/7
MHz
7.607143
MHz
7.767857
MHz
Remote command:
[:SOURce<hw>]:BB:T2DVb:USED[:BANDwidth]?
Bandwidth Variation
Requires "Requires T2-MI Interface > Off".
Changes the used bandwidth in the range of
±
1000
ppm.
Remote command:
[:SOURce<hw>]:BB:T2DVb:BANDwidth:VARiation
FFT Size
Editing the parameter requires "T2-MI Interface > Off".
Note:
Not all possible combinations of the FFT size with the following parameters are
allowed:
●
●
"1K/2K/4K/8K/16K/32K"
1K/2K/4K/8K/16K/32K FFT size using normal carrier mode
"8K
Ext./16K
Ext./32K
Ext."
8K/16K/32K FFT size using extended carrier mode
Remote command:
[:SOURce<hw>]:BB:T2DVb:FFT:MODE
Guard Interval
Editing the parameter requires "T2-MI Interface > Off".
Sets the guard interval length.
OFDM Settings