Sencore MRD 3187B - Page 82

MRD 3187B - User Manual
Page 81 (245)
Local Oscillator Offset A
The ASM card offers an offset for the Local Oscillator frequency. This means that
the MRD 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 and buttons to move
the cursor to “LO Off:” then press the
button.
2. Use the and buttons to
select the column to edit and use the
and buttons to change the
Local Oscillator Offset (0 – 12000
MHz), then press the button to
save the selection.
Symbol Rate A
1. Use the and buttons to move
the cursor to “SymRt:” then press the
button.
2. Use the and buttons to
select the column to edit and use the
and buttons to change the
symbol rate (0.256 – 30 MSps).
3. Then press the button to save
the selection.
Input B
These settings correspond to the input on “Source B.”
Modulation Type B
3. Use the and buttons to move
the cursor to “Mod:” then press the
button.
4. Use the and buttons to
select Modulation type, then press the
button to save the selection.
Note: The following Modulation types are settable:
DVB-QPSK
Adv QPSK
8-PSK
DVB-QPSK 1/2
Adv QPSK 1/2
8-PSK 2/3
DVB-QPSK 2/3
Adv QPSK 2/3
8-PSK 3/4 (2.05)
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 B
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
AdvPSK 2-2
Input B
► Mod:Adv QPSK 2/3
Freq:01250.0 MHz
AdvPSK 2-2
Freq:01250.0 MHz
LO Off:00000.0 MHz
► SymRt:00.256000MSps
AdvPSK 2-2
Freq:01250.0 MHz
► LO Off:00000.0 MHz
SymRt:00.256000MSps