Adtec RD-71 User Manual page 20

RF Rx Menu (PRX Option)
Item Function
Tuner Input Selects RF Input as the acquisition source.
Local The Local Oscillator (L.O.) control specifies the
Oscillator frequency of the LNB local oscillator. The
standard L.O. frequencies for "C" and "Ku" bands
are 5150MHz and 10750MHz respectfully
although, some other variants are included. If
the desired L.O. frequency is not listed, select
either C: Manual or Ku: Manual and enter the
L.O. frequency in the Manual L.O. field.
Manual LO Allows manual entry of the LNB Local Oscillator
frequency provided that either C: Manual or Ku:
Manual is selected from the Local Oscillator
pulldown menu.
Downlink Allows the operator to enter the satellite
downlink frequency. The value for the Downlink
frequency is used with the Local Oscillator
frequency to calculate the L-Band frequency.
The Downlink and Local Oscillator frequencies
can be used to determine if spectrum inversion
occurs using the following rules. If the Downlink
frequency is less than the Local Oscillator
frequency, then spectrum inversion does occur.
If the Downlink frequency is greater than the
Local Oscillator frequency, then spectrum
inversion does not occur.
L-Band Allows the operator to enter the L-Band
frequency within the range from 950MHz to
2.15GHz. The value entered in this field is used
with the Local Oscillator frequency to calculate
the Downlink frequency using the following
rules. If Downlink < Local Oscillator, then
Downlink - Local Oscillator = │L-Band│. If
Downlink > Local Oscillator, then Downlink -
Local Oscillator = L-Band
Modulation Selects the modulation mode being used.
Type 'DVB-S2/DVB-S2X' locks to all S2/S2X modcods,
but requires an S2X key to be selectable.
Modulation Selects the modulation mode being used when in
Mode DVB-S.
Note: When in DVB-S2 or DVB-S2/DVB-S2X
mode, AUTO is the only valid selection. AUTO is
not valid for DVB-S at this time.
Options
RF1
RF2
RF3
RF4
C: 5150
KU: 11300
KU: 10750
KU: 10600
KU: 10000
KU: 9750
KU: 9600
C: MANUAL
KU: MANUAL
Range dependent upon LO
configuration
950MHz - 2150MHz
DVB-S
DVB-S2
DVB-S2/DVB-S2X
AUTO
QPSK_1/2
QPSK_2/3
QPSK_3/4
QPSK_5/6
QPSK_6/7
QPSK_7/8
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