Data Rate Ranges; Table 2-3. Eb/No Performance For Dvb-S Qpsk Operations; Table 2-4. Eb/No Performance For Dsng 8Psk Operations; Table 2-5. Eb/No Performance For Dsng 16Qam Operations - Comtech EF Data CDM-710 Installation And Operation Manual

CDM-710/L Broadcast Satellite Modem
Specifications

Table 2-3. Eb/No Performance for DVB-S QPSK Operations

Table 2-4. Eb/No Performance for DSNG 8PSK Operations

Table 2-5. Eb/No Performance for DSNG 16QAM Operations

2.3 Data Rate Ranges

For the Symbol Rate and Data Rate Ranges for DVB-S, DVB-S2 and DVB-DSNG,
there is some roundoff in the last digit of the values as listed. Table 2-6 is for the
Standard FEC frame, and Table 2-7 is for the Short Frame. QPSK 1/4, 1/3, and 2/5
data is provided for reference only. The tables are based on a 188-byte transport
stream packet. When a 204-byte frame size is selected, the data rate increases
by 204/188.
DVB recommends turning the Pilot ON for 8PSK and higher modulation orders,
particularly when phase noise is present. For 8PSK 1/2, 16APSK 2/3 and 3/4, and
32APSK 3/4: To assist carrier recovery, these modes may need Pilot ON for low
C/N operation.
Eb/No (dB)
BER
1/2 2/3 3/4
-6
10 3.7 4.4 5.0
-8
10 4.0 4.7 5.3
-11
10 4.5 5.1 5.8
Eb/No (dB)
BER
2/3 5/6
-4
10 6.0 7.5
-6
10 6.3 7.9
-8
10 6.6 8.3
-10
10 6.9 8.8
Eb/No (dB)
BER
3/4
-4
10 8.1
-6
10 8.3
-8
10 8.6
-10
10 8.9
2–16
MN/CDM710.IOM
Revision 12
5/6 7/8
5.6 5.9
5.9 6.3
6.4 6.9
8/9
8.5
8.8
9.1
9.4
7/8
10.0
10.2
10.4
10.6