Chapter 10:
STANDARD 365-095-33577 Revision x.1 IPC4100 Release 1.0 Installation and Operation Guide
77
Field Description
Carrier Lock Indicates whether the in-band receiver is locked to the
carrier. If a digital carrier is not present, it indicates the
carrier is not locked:
Front Panel
Indicator
Description
L Carrier locked
U Carrier unlocked
Carrier Loss Lock
Count
Indicates the cumulative number of times the inband
tuner has lost lock on the inband frequency since last the
tune.
PCR Lock Indicates whether the in-band receiver is locked to the
current program clock reference for a digital video service
on the specified tuner. If a digital carrier is not present, it
indicates the PCR is not locked.
Data Detection Indicates whether data is being carried on the in-band
stream. The indicators cover all packet processors
regardless of the stream they are monitoring:
Front Panel
Indicator
Description
ON In-band data detected within last 5 seconds
OFF In-band data not detected within last 5
seconds
Frequency This indicates the center frequency that the specified
tuner is locked onto. The frequency is displayed in MHz in
xxxx.xxx format and ranges from 52.75 to 864 MHz.
SNR Value When carrier lock has been established, displays an
estimate of the carrier signal-to-noise ratio in dB.
SNR Quality Indicator GOOD — Good value
FAIR — Marginal signal level, check the signal
POOR — Unusable signal
INVALID — Invalid SNR value
Signal Level/Received
Power
Indicates the number of correctable and uncorrectable
digital multiplex errors, up to 9999. It is updated every 5
seconds and reset each time the IPC4100 series is power
cycled or another digital multiplex is tuned. The
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