Cisco Cisco D9858 Advanced Receiver Transcoder Installation Guide

 

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OL-31087-01 

6  In the Symbol Rate field, enter the symbol rate that matches the transmitted 

signal. You can enter a value in the range from 1.0 to 45.0 Ms/s for DVB-S, 1.0 to 
30.0 for DVB-S2 if Pilot Present is set to Yes on the front panel, or 5.0 to 30.0 for 
DVB-S2 if Pilot Present is set to No on the front panel. 

7  From the FEC drop-down list, choose the Forward Error Correction inner code 

rate. The FEC rate must match the FEC of the transmitted signal. You can select 
1/2, 2/3, 3/4, 5/6, 7/8, or Auto.  

8  From the Modulation drop-down list, choose the modulation type for the 

received signal (DVB-S or DVB-S2). 

9  From the Roll Off drop-down list, choose the roll-off factor of the incoming 

signal (.20, .25, .35). Set the value to .20 or .35 when DVB-S modulation is used, 
and either of the three when DVB-S2 is used. Use a small number to reject or 
filter carriers close to the same frequency. 

10  From the IQ drop-down list, choose the input signal spectrum inversion setting, 

which allows the operator to track and select inverted and non-inverted digital 
signals. This is normally used to automatically reject or filter out unwanted 
signals. 
When set to Auto, signal is tracked and inverted for correct selection, as 
required. When set to Opposite, the signal is always inverted. Conversely, when 
set to Normal, the signal is not inverted.  

11  The RF1 22KHz is only applicable for dual band applications. Select whether to 

transmit the 22 kHz tone Local Oscillator control signal of RF1. The selections are 
On, Off, or Auto. Select Auto to use the crossover frequency to determine if the 
tone is transmitted. 

12  From the RF1 Power drop-down list, choose the power output of RF1 to the 

external Low Noise Block (LNB). 
You can set the RF1 Power to Off, 13V, 18V, V-NIT or H-NIT. When RF1 Power 
is set to V-NIT or H-NIT, it will use vertical and horizontal polarity until it is 
automatically read from the NIT. 
Note: Power will not be applied to the LNB when set to Off. 

13  In the RF Input LNB Configuration area, for RF1, RF2, RF3, and/or RF4, set the 

lower local oscillator frequency, in GHz, of the LNB in the LO1 (Ghz) column. If 
it is a single band oscillator, set its frequency, in GHz. You can enter a value in a 
range from 0.0 to 15.0 GHz. This value must be lower than the value for LO2. 

14  For RF1, RF2, RF3, and/or RF4, set the higher oscillator frequency, in GHz, of the 

LNB in the LO2 (Ghz) column. If it is a single band oscillator, set this value to 
0.0. You can enter a value in a range from 0.0 to 15.0 GHz. This value must be 
higher than the value for LO1. In single-band LNB applications, set this value to 
0.0.