Motorola DCX3200, Руководство по установке

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4 DIAGNOSTICS
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The In-Band Status fields are:
Field Description
Mode The values displayed on the OSD are:
64 QAM — 64 QAM digital channel
256 QAM — 256 QAM digital channel
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:
OSD Description
YES Carrier locked
NO Carrier not locked
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 Indicates whether data is being carried on the in-band stream. The
indicators cover all packet processors regardless of the stream they
are monitoring:
OSD Description
YES In-band data detected within the last 5 seconds
NO In-band data not detected within the last 5 seconds
Frequency The in-band frequency is center RF carrier frequency tuned for the
digital service on the specified tuner. The frequency is displayed in
MHz in xxxx.xxx format and ranges from 54 to 860 MHz.
SNR When carrier lock has been established, displays an estimate of the
carrier signal-to-noise ratio in dB, with an explanation:
GOOD — Good value
FAIR — Marginal signal level, check the signal
POOR — Unusable signal
INVALID — Invalid SNR value
5 Second Error Counts Indicates the number of correctable and uncorrectable digital multiplex
errors, up to 9999. It is updated every 5 seconds and reset each time
the DCX3200 is power cycled or another digital multiplex is tuned. The
maximum value displayed is 9999, even if there were more than 9999
errors.