Comtech EF Data MDX420 SkyWire Manual - Manual (Page 89)

MDX420 SkyWire™ Satellite Network Gateway SkyWire Controller (GUI)
MN-MDX420 Revision 6 7–33
PER – Packet error rate
Some of these drop down graphs, such as the Carrier Level and Eb/No have indicators in red and
green on the “Y” axis of the graph to help operators understand if the products are being used in a
suggested range (see figures 7.6.1-a and 7.6.1b). These ranges change depending on the data rate,
performance, modulation and coding being used.
Figure 7.6.1-a Figure 7.6.1-b
Composite status (located on the right side of each Demod section) does not change regardless of
the Graph drop-down and includes information on the carrier as a whole (all sites that are members of
a share group treated as a single composite carrier):
Carrier (min) – Carrier level of the active burst demodulator in the share group with the lowest
receive carrier level
Eb/No (min) – Signal quality indicator of the active burst demodulator in the share group with the
lowest Eb/No
PPS – packets per second – Statistically averaged snapshot of the total packet per second rate
received by the share group.
% Total IR – composite throughput
PER – composite packet error rate
Packet errors – composite packet errors
Total packets – composite packets
Figure 7.6.1-c Demodulator Status