Adtec RD-70 User Manual page 17

Local Oscillator = │L-Band│. If Downlink >
Local Oscillator, then Downlink - Local Oscillator
= L-Band
Acquisition Acquisition Range is defined as the range of
Range frequencies that the tuner will scan in order to
achieve carrier synchronization. Allows the
operator to select the range of frequencies that
the RF tuner will sweep through to acquire the
carrier. e.g. If the desired carrier is at 1.080GHz
and the Acquisition Range is set to 5MHz, the RF
tuner will sweep through 1.080GHz ± 2.5MHz to
acquire the carrier.
S2X Rolloff S2X Rolloff will allow the tuner to operate in an
optimized mode for roll-offs of 15% or less.
When disabled, it will operate in standard 20% -
35% as defined by the incoming S2 BBHeader.
Due to modulation manufacturers providing
backwards compatibility during S2 to S2X
migration, this must be manually configured for
the best 5%, 10% and 15% roll-off performance.
LNB Polarity This control is primarily used in "Universal" LNB
applications. The LNB Polarity control allows for
LNB polarization selection; the 13VDC source will
select the Vertical polarity and the 18VDC source
will select the horizontal polarity. For typical "C"
and "Ku" band applications, the 18 VDC option is
recommended.
LNB Tone This control is used only for Universal LNB
applications. A universal LNB can route the high
or low band from either polarity to the IRD. The
high band is selected by enabling the 22 kHz
tone and the low band is selected when the 0 Hz
tone is enabled.
Modulation Allows the selection of the mod type.
Type
Symbol Rate The number of symbols transmitted per second.
The amount of data per symbol is dependant
upon the modulation type, e.g. QPSK, 8PSK, etc.
Set this field to 0 for automatic Symbol Rate.
ISI ISI (input stream identifier) is required for
multistream applications. If a multistream RF
source is detected, BBHeaders containing this
value will be demodulated and output to the
receiver. This value has no effect during single
stream applications.
RF Stats
Menu
RF Stats General RF Lock Status is provided via the RF
0 - 5MHz
DISABLED
ENABLED
OFF
H(18V)
V(13V)
0KHz
22KHz
AUTO
DVBS
DVBS-2
0 = AUTO
Range can be determined by
feature key.
0 - 255