Cisco Cisco D9887B HDTV Modular Receiver 安装指南
Dual Input ASM Receiver Option
4043118 Rev A
95
DVB-QPSK 3/4
Adv QPSK 3/4
8-PSK 3/4 (2.10)
DVB-QPSK 5/6
Adv QPSK 5/6
8-PSK 3/4 (2.20)
DVB-QPSK 7/8
Adv QPSK 7/8
8-PSK 5/6
8-PSK 8/9
Frequency A
The ASM card tunes by the L-band frequency rather than the transponder frequency
or local oscillator value. The L-band frequency (950 – 2150 MHz) is the difference
between the downlink transponder frequency and the LNB local oscillator
frequency.
or local oscillator value. The L-band frequency (950 – 2150 MHz) is the difference
between the downlink transponder frequency and the LNB local oscillator
frequency.
Note: If the values of "Freq" and "LO Off" result in a frequency that is out of the L-
Band, an active error ("Band Freq Error") will be present while the tuning setting is
outside of the L-Band.
1 Use the Up and Down buttons to move the cursor to "Freq," then press the Enter
Band, an active error ("Band Freq Error") will be present while the tuning setting is
outside of the L-Band.
1 Use the Up and Down buttons to move the cursor to "Freq," then press the Enter
button.
2 Use the Left and Right buttons to select the column to edit and use the Up and
Down buttons to change the frequency (950 MHz – 14500 MHz), then press the
Enter button to save the selection.
Enter button to save the selection.
Local Oscillator Offset A
The ASM card offers an offset for the Local Oscillator frequency. This means that the
D9887B receiver will calculate the actual frequency in which the card tunes; saving
the user time and possible miscalculation errors. Follow the steps below to change
the offset or set to zero for manual calculation.
1 Use the Up and Down buttons to move the cursor to "LO Off," then press the
D9887B receiver will calculate the actual frequency in which the card tunes; saving
the user time and possible miscalculation errors. Follow the steps below to change
the offset or set to zero for manual calculation.
1 Use the Up and Down buttons to move the cursor to "LO Off," then press the
Enter button.
2 Use the Left and Right buttons to select the column to edit and use the Up and
Down buttons to change the Local Oscillator Offset (0 – 12000 MHz), then press
the Enter button to save the selection.
the Enter button to save the selection.