beautypg.com

Comtech EF Data CDM-700 User Manual

Page 131

background image

CDM-700 High Speed Satellite Modem

Revision 5

Forward Error Correction Options MN/CDM700.IOM


1.0E-10

1.0E-09

1.0E-08

1.0E-07

1.0E-06

1.0E-05

1.0E-04

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Eb/No (dB)

BE

R

Rate 3/4 TPC QPSK, 8PSK, 16-QAM, 64-QAM

Spec Limit

QPSK 3/4

Spec Limit

8PSK 3/4

Spec Limit

16-QAM 3/4

Spec Limit

64-QAM 3/4

Typical

Typical

Typical

Figure 7-3. Rate 3/4 TPC QPSK, 8-PSK, 16-QAM, 64-QAM

7–5