- 26 -
- 26 -
Setting the QAM modulation
• Set the QAM mode with
.
—> A higher QAM mode restricts the output symbol rate
(permissible value < 7,000 kilosymbols per second).
An output QAM mode of > 64 QAM places a large
burden on the cable network. Due to noise, delay
and frequency response problems, a reception of
the converted output signal can be impeded.
• Press the
button.
—> The menu “Setting the stuffing” – “
STUFFING
”
is
activated.
Setting the stuffing
SR=6875
(= “number 1”):
Active output symbol rate
Bx 1A
SR=6875 (5800)
STUFFING:
Number 1 Number 2
(
5800
) (= “number 2”):
The current measured output symbol rate.
If the station filter is activated, this value is lower than
the value of the “number 1”. The value fluctuates,
since the data rates of individual stations are dynami-
cally modified by the broadcasters.
+
–
/
Bx 1A
64-QAM
QAM-MODE:
AUDIO
+
–
/
Bx 1A
64-QAM
QAM-MODE:
AUDIO
Bx 1A
SR=6875 (5800)
STUFFING:
▶
◀
/
+
–
/
Bx 1A
SR=6875 (5800)
STUFFING:
▶
◀
/
+
–
/
