Datum Systems M7 Series - Page 103

M7/M7L/M7LT Modular Satellite Modem Maintenance
M7/M7L/M7LT - Rev. 0.05 3-47
Demodulator Parameters
Representation
Type
Entry
Description
Status LNB Power Option
+13V, +18V @ 0.050A
Read
Only
N/A
LNB Power Supply Status.
M7L and M7LT
Status Hardware Type
Std IF Demodulator
Read
Only
N/A
Identification of installed
Demodulator hardware
Status Hardware ID
M709004A-1r1.00
Read
Only
N/A
Part number of installed
Demodulator hardware
Status Hardware S/N
101820
Read
Only
N/A
Serial number of installed
Demodulator hardware
IF LNB Rcv Frequency
10750.000MHz
Numeric
Can change depending on
the setting of the LNB LO
RF carrier center frequency
based on the LNB LO Frequency
parameter setting
IF Frequency
70.000000MHz
Numeric
50.000000 to 180.000000
MHz
950.000000 to
2150.000000 MHz for L-
Band unit
Receive carrier center frequency.
L-Band frequency shown if LNB
LO is set to 0, else is set to RF
frequency.
IF Sweep Range
30.000kHz
Numeric
0.100 to 3500.000 kHz
Receive carrier acquisition range
in kHz.
IF Sweep Mode
Fast
Selection
0 = Fast, 1 = Search
Fast acquisition mode is
standard method. Search
acquisition parameters are set in
the Sweep Time menu
»IF Sweep Time
10.0 Sec
Numeric
0.0 to 99.9 Seconds.
0 Disables Narrow Sweep
Narrow Sweep time applicable to
Search sweep mode only.
IF Modulation
QPSK
Selection
0 = BPSK, 1 = QPSK,
2 = OQPSK, 3 = 8PSK,
4 = 8QAM, 5&6 = 16QAM
Modulation Mode. Some values
left available for new options.
IF Spectrum
Normal
Selection
0 = Normal, 1 = Inverted
Demodulation Spectrum control
IF Filter Roll-Off
0.35
Selection
0=0.40, 1=0.35, 2=0.30,
3=0.25, 4=0.20, 5=0.15,
6=0.10, 7=0.08
Sets the Alpha roll-off factor for
the demodulator filters
IF AUPC Remote Path
Disable
Selection
0 = Disable,
1 = Local,
2 = Out MCC Port,
3 = Out IP Control Port
Sets the output path for the
AUPC data. “Out MCC Port”
setting at both ends of a duplex
PtP link is the standard for bi-
directional AUPC on a duplex
link. “Local” is the setting for
AUPC of the transmit carrier in a
broadcast network.
IF AUPC Remote MCC Address
1
Numeric
1 to 254. 255 = Global
Set the address of the target
MCC port
IF Impedance
75 Ohm
Selection
0 = 50, 1 = 75
Receive IF impedance.