If instead of the output symbol rate, the
display shows
935.2155/D/0705/3.4e
3. Selecting the output channel or output frequency
Inp. 2004 MHz
22,000 MS/s 5/6
Outp. S21 306,00 MHz
6,111 MS/s 64 QAM
**** UFO385 * * * *
Output Freq. 306,00 MHz
< Back to: sub-menu >
4. Selecting the QAM ranges
Inp. 2004 MHz
22,000 MS/s 5/6
Outp. S21 306,00 MHz
6,111 MS/s 64 QAM
Inp. 2004 MHz *
22,000 MS/s 5/6
Outp. S21 306,00 MHz
zu hoch 16 QAM
If instead of the output symbol rate,
the display shows
Select the desired QAM with „+“ or „-“.
The ranges 16-, 32-, 64-, 128-, 256-QAM can be selected
… select a QAM with higher stages.
Inp. 2004 MHz *
6,000 MS/s 5/6
Outp. S21 306,00 MHz
zu niedrig 256 QAM
… select a QAM with less stages.
5. Selecting the modulation signal for the QAM modulator
Inp. 2004 MHz
22.000 MS/s 5/6
Outp. S21 306.00 MHz
6.111 MS/s 64 QAM
**** UFO385 * * * *
Modulation SAT-Signal
Spectrum normal
< back to: sub-menu >
After having selected the parameter … QAM, press
and go to the sub-menu.
Select the operation mode „Sat signal“/„PRBS“ in the
sub-menu with „+“ or „–“.
Signal Sat Standard operation, the Sat input signal is
converted.
PRBS: Internal pseudorandom signal modulates the
QAM modulator for measurement purposes.
A 64 QAM signal with an output symbol rate
of 6.875 MS/s is generated. No Sat input
signal is required.
The output channels S21-S41/Ch21-Ch37 of UFO 385
are selected with keys „+“ or „-“., or for UFO 387 the
channel mid-frequency 114 MHz to 298 MHz.
If necessary (for frequency fine tuning), press key
in order to change to the sub-menu.
With the keys „+“ or „-“ you can change the output
frequency in the sub-menu in 50 kHz steps. The adjust-
ment range is ± 3.9. MHz relative to the channel
mid-frequency.
Back to the main menu with key .
