Figure 4-5 Front Panel Display For In-Band Diagnostic - Motorola DCH3416 Installation Manual

4 DIAGNOSTICS

Figure 4-5 Front panel display for in-band diagnostic

The In-Band Status fields are:
Field
Mode
Carrier Lock
PCR Lock
Data
Frequency
SNR
5 Second Error Counts
Data activity
indicator
IB diagnostic Carrier lock indicator
indicator (L = locked, U = unlocked)
Description
The values displayed on the OSD are:
64 QAM — 64 QAM digital channel
256 QAM — 256 QAM digital channel
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 Front panel
YES L
NO U
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.
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 Front panel
YES On
NO Off
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.
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
Indicates the number of correctable and uncorrectable digital multiplex errors, up
to 9999. It is updated every 5 seconds and reset each time the DCH3416 is
power cycled or another digital multiplex is tuned. The maximum value displayed
is 9999, even if there were more than 9999 errors.
29
Description
Carrier locked
Carrier not locked
Description
In-band data detected within the last 5 seconds
In-band data not detected within the last 5
seconds