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Using the Equipment
Use the (Up) and (Down) keys to toggle between the available settings:
AUTO, NORMAL or INVERTED.
3.10.4.7.8
Search Mode
Allows the IRD to automatically determine the most appropriate frequency search
range or to use a user defined Search Range.
This option is not available for the DVB-S2X card.
To access this menu from the above menu, press the (Down) key.
Use the (Up) and (Down) keys to toggle between the available settings: AUTO
or MANUAL.
3.10.4.7.9
Search Range
Owing to frequency inaccuracies of the transmission system (mostly LNB
inaccuracies) the wanted carrier may not be exactly on frequency. This option
provides the satellite input with the maximum frequency search limits within which to
attempt to acquire the wanted signal. A typical search range is 5000 kHz. A
narrower search range may result in faster acquisition especially for low symbol rate
carriers.
Note:
To access this menu from the above menu, press the (Down) key.
Use the (Up), (Down), (Forward) and (Back) keys to enter the search
range.
3.10.4.7.10
Mapping Mode
This option allows the IRD to determine the power of the received constellation
points relative to an unmodulated carrier or DVB-S2 pilot tones. For single carrier
transmissions where one carrier occupies the whole transponder the optimum
setting is PEAK POWER. For multi-carrier transmissions where multiple carriers are
transmitted within one satellite transponder then MEAN POWER should be used.
This option is not available for the DVB-S2X card.
3-72
SOURCE 1
3.2.2.7
For low symbol rate transmissions, a search range that is too wide may
cause the IRD to lock onto an unwanted, adjacent carrier. Care must be
taken to ensure that the search range entered is appropriate for the symbol
rate of the incoming carrier.
SOURCE 1
3.2.2.8
|SEARCH MODE
|AUTO
|SEARCH RANGE
|05000 KHz
(UNLOCKED)
(UNLOCKED)
EN/LZT 790 0005 R7A
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