Comtech EF Data CDM-710G - Manual (Page 117)

CDM-710G High-Speed Satellite Modem Revision 1
Front Panel Operation MN-CDM710G
6–41
6.3.2.2 (SELECT:) Monitor
Æ Rx_Stats
For DVB-S2 only:
EsNo=14.0 BUF=050%
EbNo=12.8 BER=1.0E-09
EbNo=12.8 BER=1.0E-09
ΔF=-000.2k RSL=-16
ΔF=-000.2k RSL=-16
Link_Margin=+10.4
When the demodulator is locked, this menu reports Eb/No, PER (packet error rate), ΔF (frequency
offset of incoming carrier) and RSL (receive signal level).
Link Margin = [Es/No (measured) – Es/No (threshold)]. Refer to Chapter 1. INTRODUCTION
for threshold information.
Additionally:
Usable Es/No Range (Typical)
Modulation Es/No Range (dB)
QPSK 0.0 to 14.0
8QPSK 4.5 to 18.5
16APSK 8.0 to 22.0
32APSK 11.5 to 25.00
6.3.2.3 (SELECT:) Monitor:
Æ Event-Log
Stored Events: View
Clear-All (E)
Select View or Clear-All using the ◄ ► arrow keys, then press
ENTER
.
If Stored Events: Æ View is selected:
Log015 23/05/06 09:27:15
Fault – No PHY Link ()
• This window displays up to 253 Alarms.
• Use the
ST arrow keys to display individual alarms.
• The Event-Log stores the live alarms, along with a timestamp for review and
troubleshooting. The date is in international format: dd/mm/yy
• Refer to Table 6-4 for the listing of available alarms: