MRD 3187B - User Manual
Page 82 (245)
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 and buttons to move
the cursor to “Freq:” then press the
button.
2. Use the and buttons to
select the column to edit and use the
and buttons to change the
frequency (950 MHz – 14500 MHz),
then press the button to save the
selection.
Local Oscillator Offset B
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.
3. Use the and buttons to move
the cursor to “LO Off:” then press the
button.
4. 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 B
4. Use the and buttons to move
the cursor to “SymRt:” then press the
button.
5. Use the and buttons to
select the column to edit and use the
and buttons to change the
symbol rate (0.256 – 30 MSps).
6. Then press the button to save
the selection.
AdvPSK 2-2
Freq:01390.0 MHz
LO Off:00000.0 MHz
► SymRt:00.256000MSps
AdvPSK 2-2
Freq:01390.0 MHz
► LO Off:00000.0 MHz
SymRt:00.256000MSps
AdvPSK 2-2
Mod:Adv QPSK 2/3
► Freq:01390.0 MHz
LO Off:00000.0 MHz
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