MRD 3187B - User Manual
Page 100 (245)
22 kHz Tone
22 kHz Tone is configurable separately for each Source input, but is only supplied to
the active source. The 22 kHz Control Tone setting is either on or off.
Note: The 22 kHz Tone is only sent if the is LNB Power being supplied – the LNB
Power is not set to “off”.
1. Use the and buttons to move the
cursor to “22 kHz Tone:” then press the
button.
2. Use the and buttons to select
“Off”, “13VDC”, “14VDC”, “18VDC”,
“19VDC”, then press the button to
save the selection.
Tuning Frequency
The DVB-S/S2 card tunes by the L-band frequency rather than the transponder
frequency or local oscillator value. The L-band frequency is the difference between
the downlink transponder frequency “Sat Freq:” and the LNB local oscillator
frequency “LO Offset:”. The IRD will calculate the actual frequency in which the card
tunes; saving the user time and possible miscalculation errors.
Local Oscillator Offset
The Local Oscillator Offset provides preset values that can be selected using the
List mode. Any valid Local Oscillator Offset value can be entered using the
Manual mode.
1. Use the and buttons to move
the cursor to “LO Offset Mode:” then
press the button.
2. Use the and buttons to
select “Man” (for manual) or “List”,
then press the button to save the
selection.
3. When in “List” mode, use the and
buttons to move the cursor to “LO
Offset:”, then press the button.
4. Use the and buttons to
select “00000MHz”, 05150MHz”,
09750MHz”, “10600MHz”,
“10750MHz” or “11250MHz” as the
“LO Offset” setting, then press the
button to save the setting.
DVB-S/S2 1-4
LO Offset Mode:List
►LO Offset:00000MHz
Sat Freq:00950 Mhz
DVB-S/S2 1-4
►LO Offset Mode:Man
LO Offset:00000MHz
Sat Freq:00950 Mhz
DVB-S/S2 1-4
DVB Mode:DVB-S2
►LNB Power:Off
22kHz Tone:off
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