Kathrein UFO 372/TP Manual Del Usuario página 20

1.10 Selecting the QAM stage
The output signal QAM stage is selected using the "<" and ">" buttons.
I 1236 MHz
27.500 MS/s
Outp. S21
6.900 MS/s
Main menu
Select the desired QAM using the "+" and "-" buttons. QAM stages 16, 32, 64, 128 and 256 are available.
Note: If different QAM stages are available, it is advantageous to select the lower stage (e.g. if 256 and 64 are
available, select 64). If an exclamation mark "!" is shown beside the output symbol rate (i.e. the input data
rate is too large for the output data rate setting), the output symbol rate or the QAM stage must be increased
to ensure correct operation.
1.11 Selecting the modulation signal for the QAM modulator
The modulation signal (mode) for the QAM modulator is selected in the QAM stage sub-menu.
The output signal QAM stage is selected using the "<" and ">" buttons.
Pressing the "Sub-menu" button
The QAM mode is selected using the "<" and ">" buttons and adjusted using the "+" and "-" buttons.
I 1236 MHz
27.500 MS/s
Outp. S21
6.900 MS/s
Main menu
The following settings are available:
Mode
I
Outp. S21
6.900 MS/s
Main menu (display in PRBS mode)
Note: The output symbol rate can be set in PRBS mode.
Simple signal meters can be used to measure the output level in CW mode.
I
Outp. S21
-.--- MS/s
Main menu (display in CW mode)
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TP
3/4 QPSK
306.00 MHz
! 32 QAM
activates the sub-menu; pressing the "Sub-menu" button again deactivates it.
TP
3/4 QPSK
306.00 MHz
256 QAM
Normal mode, the satellite input signal is transmodulated. If there is a fault on
SAT Sig
the input signal, only fi ll bytes (0xFF) will be modulated
Test mode. The QAM signal is modulated with the PRBS-23 sequence.
PRBS
Normal mode is unavailable in this setting
Test mode. Sine-wave signal for levelling using simple signal meters.
CW
Normal mode is unavailable in this setting
PRBS
306.00 MHz
256 QAM
CW
306.00 MHz
256 QAM
** UFO 372TP-I
Mode SAT Sig
Spectrum normal
"QAM stage" sub-menu
** UFO 372TP-I
Mode PRBS
Spectrum normal
"QAM stage" sub-menu for setting PRBS)
** UFO 372TP-I
Mode
Spectrum normal
"QAM stage" sub-menu (for setting CW)
**
**
**
CW