Operation Manual

SFX SERIES USER’S GUIDE
Rev 2.2 84
RF Metric Item Description
Current AFC Range This displays the current AFC range in kHz.
Uncorrected Packets This displays the number of DVB packets that could not be corrected by the Reed-Solomon
FEC. Once the counter reaches 32767 (16 bits), it remains there and has to be reset using the
Reset Packets Counter button, to begin counting again.
Reset RS Packets Selecting this button will cause the RS Uncorrected Packets counter to reset back to zero (0).
This command is useful when the RS Uncorrected Packets counter is incrementing rapidly,
particularly when the DVB Carrier is received in high noise situations or at lock threshold.
Figure 2- 56 PID Metrics Page
The individual metrics/menu items relating to the PID Metrics are described below:
PID Metric Description
PID # This is list of PIDs that are currently assigned to the Net Port. Beside each PID # will be
displayed the associated Net Port metrics (Total DVB Packets, Total Frames, Missed Frame
Headers, Short Frames, and Continuity Errors) for that PID.
Total DVB Packets This is a count of the total number of DVB packets received from the PID stream without error,
since the last time the receiver acquired lock or rebooted.
Total Frames This is a count of the total number of MPE frames decoded from the PID’s MPE stream without
error, and sent to the IP stack for further processing/routing.
Missed Frame
Headers
This is the PID’s total number of DVB packets, where the Payload Unit Start Indicator bit was
set to 0 and the packets were discarded due to a missed start of an MPE frame (i.e. the next
expected DVB packet should have had the Payload Unit Start Indicator bit set to 1, which
indicates the start of the next MPE frame). This value is reset to 0 when the receiver reboots.
Furthermore, the number of missed frame headers for an individual PID is reset to 0 when the
PID is disabled.
Short Frames This is the PID’s total number of incoming MPE frames that were incomplete. This value is
reset to 0 when the receiver reboots. Furthermore, the number of short frames for an individual
PID is reset to 0 when the PID is disabled.