Table of Contents
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CDM-710G High-Speed Satellite Modem
Introduction
1.5.4
Test Functions
Description
CW
SSB Carrier
Loopback Modes
1.5.5
Monitor Functions
Description
Status Items – available via Front Panel
Receive Signal Level
Es/No
Eb/No
1.5.6
Remote Port Operation
Description
Comtech EF Data Remote Port
Ethernet Telnet
Ethernet SNMP
Ethernet HTTP
1.5.7
Data Rate Range
Symbol Rate and Data Rate Range for DVB-S2. There is some roundoff in the data rate ranges in
the last digit. Table 1-5 is for the Standard FEC frame, and Table 1-6 is for the Short Frame. The
tables are based on a 188-byte transport stream packet (only 188 is available).
DVB recommends turning the Pilot ON for 8PSK and higher modulation orders, particularly
when phase noise is present.
The following modes may need Pilot ON for low C/N operation: 8PSK 1/2, 16APSK 2/3 and 3/4,
and 32APSK 3/4 to assist carrier recovery.
QPSK 1/4, 1/3, and 2/5 data is for information only.
Requirements
Generates a narrow carrier at the programmed frequency at the
programmed power level. Used in testing.
Provides desired sideband, suppressed carrier and suppressed
sideband.
• Modulator to Demodulator
• I/O Loopback where applicable
• Digital Loopback where applicable
Requirements
Fault Log with fault type and time stamp
Report within ± 5 dB, typical
Report within ± 0.5 dB, typical
Report within ± 0.5 dB, typical
Requirements
See Appendix A. REMOTE CONTROL
Ethernet transport of standard Remote Control commands.
See Chapter 8. SNMP.
Support all control and monitor parameters.
1–19
Revision 1
MN-CDM710G
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