Ericsson RX1290 用户手册

下载
页码 176
Operating the Equipment Locally 
 
 
3.6 
Setting Up the Input (Menu 2) 
3.6.1 
DVB-S2 Satellite Receiver (TT1290/HWO/DVBS2 and 
TT1290/HWO/DVBS2/IF/CONST) 
Table 3.6  Setting Up the DVB-S2 Satellite Receiver 
Step Action 
Result 
Go to Menu 2.3 and select 
SOURCE 1.  
The Receiver can take its signals from four 
sources. Set-up source 1. 
Scroll to Menu 2.3.2. Enter the 
LNB FREQUENCY then press 
Save
This sets up the LNB frequency for the 
selected Source in MHz. 
Scroll to Menu 2.3.2.1. Enter 
the SATELLITE FREQUENCY 
then press Save
This sets up the Satellite frequency for the 
selected Source in MHz. 
Scroll to Menu 2.3.2.2. Enter 
the SYMBOL RATE then press 
Save
Sets the symbol rate for the selected Source in 
Msymbols/s. 
Scroll to Menu 2.3.2.3. Enter 
the DVB Modulation Standard 
then press Save
This sets up the DVB modulation Standard 
(DVB-S or DVB-S2). FEC detection is 
automatic. In DVB-S2 mode the demodulator 
automatically detects and locks to both QPSK 
and 8PSK constellations.  
Scroll to Menu 2.3.2.4. Enter 
the  
ROLL-OFF then press Save. 
Sets the Roll-Off of the demodulator Root 
Nyquist Filter. Choose between 35%, 25%, 
20%. This value should match that set in the 
transmitting modulator. 
Scroll to Menu 2.3.2.5. Enter 
the SEARCH RANGE then 
press Save
This sets up the centre frequency Search 
Range for the selected Source in kHz. 
Scroll to Menu 2.3.2.6. Enter 
the LNB POWER and 
VOLTAGE settings then press 
Save
Sets the LNB power for the selected Source 
(ON, OFF, BOOSTED). BOOSTED provides 
1V extra power over  the ON setting. Also sets 
the LNB voltage settings (18v – Horiz, 13v – 
Vert). 
Scroll to Menu 2.3.2.7. Enter 
the LNB 22 kHz setting then 
press Save
Enables or disables the LNB 22 kHz control 
tone for the selected Source (On, Off). 
10 
Repeat steps 2 through 9 for 
input 2 to 4 
 
 
EN/LZT 790 0003/2 R1A
 
3-10