Filter
Top Products
TV Operation
TV DIGITAL menu
DVB-C
----TV MEASURE ALL----
min/max: 38.0/65.0 dBµV
level
beep
mea-
sure
MPEG
PICTURE
70
S32 394.00MHz D65.0dBµV
QAM64
mode >
BACK
Calls up the previous menu
Level-dependent acoustic signal
In the function, “level
beep,“ a acoustic signal is
generated, whose pitch is
proportional to the received
signal level. With this
signal, it is possible to optimally align the
receiving antenna to a transmitter.
In this menu, the receiving frequency can be
changed using the cursor buttons, ◄►. In
the RP menu, the receiving frequency can be
changed in this manner.
Selecting demodulation for DVB-C measurement
With this button, the type of demodulation, QAM64, QAM128 or DOCSIS QAM64
(Softkey designation = DOC64 Mode) is selected. The setting is taken over for the
constellation analysis.
Symbol rate entry
6.900
SR1
ç
QAM64
Mode
ç
For correct level measurement of digital signals, you can choose between 4 pre-set
symbol rates (In DVB-C mode: 6,900; 6,111; 6,952 and 6,875.). It is also possible,
to change the preset symbol rates by numerical entry. In the DVB-C range, symbol
rates can be programmed from 0.5...7.2 Ms. This programming is taken over for
the constellation analysis. With the [MHz] button, the entry is completed.
For correct level measurement of signals, the correct symbol rate must be set!
47