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QMultiFlex-400™ Installation and Operating Handbook
8.3.2.1 Hub Modem Configuration
Using the modem's embedded web server, navigate to the Edit > Service > General menu
tab and configure as necessary. The following example configuration supports the hub
canceller with 5 inbound carriers underneath the outbound carrier, as follows:
Heading
System
Tx Service
Tx Mod and Coding
Tx Carrier
Receive General
Demod ID/Control
Table 8-1 – Hub QMultiFlex-400™ Example Configuration
Navigate to the Edit > Service > Demod 1 to 8 menu tab and configure each demodulator
in turn:
Heading
Demod 1
Demod 2
Demod 3
Demod 4
Demod 7
Table 8-2 – Hub QMultiFlex-400™ Example Configuration
8.3.2.2 Remote Modem Configuration
Navigate to the Edit > Tx-Rx > Service tab and configure as necessary. Example remote
Modem configuration, as follows:
Heading
Service
Terrestrial Interface
Parameter
Tx Rate Control
Tx FEC Type
Tx Symbol Rate
Tx Modulation
Tx FEC Code Rate
Tx FEC Frame Size
Tx Freq Band
Tx Carrier Freq
IF Output Power
Modem Carrier
Tx Spectral Roll-Off
Rx Freq Band
Rx Spectral
Inversion
Demods 1 - 16
Parameter
Rx Carrier Freq
Rx Symbol Rate
Demod Enable
Rx Carrier Freq
Rx Symbol Rate
Demod Enable
Rx Carrier Freq
Rx Symbol Rate
Demod Enable
Rx Carrier Freq
Rx Symbol Rate
Demod Enable
Rx Carrier Freq
Rx Symbol Rate
Demod Enable
Parameter
Tx Service
DVB-S2/X / Fastlink / Closed Net
Options
Star / Mesh
Data / Symbol Rate
DVB-S2/X / Fastlink
100k – 70Msps
QPSK/8PSK/8/16/32 &
64APSK
Numerous, refer to Datasheet
Normal / Short
IF and L-Band
50-180 MHz/950-2450MHz
0 to -25dBm
On / Off / Rx Enabled
5/10/15/20/25/35%
IF and L-Band
Normal / Inverted
Enable / Disable
Options
50 – 180MHz
180k – 40Msps
On / Off
50 – 180MHz
180k – 40Msps
On / Off
50 – 180MHz
180k – 40Msps
On / Off
50 – 180MHz
180k – 40Msps
On / Off
50 – 180MHz
180k – 40Msps
On / Off
Options
IP
8-8
Configuration
Star
Symbol Rate
DVB-S2X
10Msps
8PSK
23/36
Normal
IF
140MHz
-2dBm
Initially Off
10%
IF
Normal
Demods 1-4 & 7
Enabled
Configuration
136.0000
1.683071Msps
On
138.0000
1.683071Msps
On
140.0000
1.683071Msps
On
142.0000
1.683071Msps
On
144.0000
1.683071Msps
On
Configuration
IP
DVB-S2
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