Comtech EF Data SDM-650B - Manual (Page 147)

SDM-650B Satellite Modem Maintenance
Rev. 6 6–3
Refer to Figure 6-3 for a typical eye pattern with noise, and Figure 6-4 for a typical eye
pattern without noise.
Refer to Figure 6-5 for a typical eye constellation with noise, and Figure 6-6 for a typical
eye constellation without noise.
If the demodulator does not lock up, refer to the fault isolation in Section 6.2.2 to help
find the problem.