Motorola DCH6416 ユーザーズマニュアル
4 DIAGNOSTICS
30
Figure 4-4 Front panel display for the OOB diagnostic
The Out-Of-Band Status fields are:
Field Description
OOB
Frequency
Frequency
Indicates the OOB tuner center frequency, from 70 to 130 MHz.
Carrier
Lock
Lock
Indicates whether the OOB receiver is locked to the carrier:
OSD
Front
Panel
Panel
Description
YES
L
Carrier
locked
NO
U
Carrier
unlocked
Data
Indicates whether data is being carried by the OOB and EMM traffic, which is tracked separately:
OSD
Front
Panel
Panel
Description
YES
On
OOB data detected within last 5 seconds
NO
Off
OOB data not detected within last 5 seconds
EMM Data Indicates whether EMM data is being carried on the OOB stream:
OSD
Front
Panel
Panel
Description
YES
On
EMM data detected within last 5 seconds
NO
Off
EMM data not detected within last 5 seconds
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
in dB, with an explanation:
GOOD—Good value
FAIR—Marginal signal level, check the signal
POOR—Unusable signal
INVALID—Invalid SNR value
AGC
When carrier lock has been established, displays an estimate of the AGC as a percentage, with
an explanation:
GOOD—Good value
FAIR—Marginal signal level, check the signal
POOR—Unusable signal
INVALID—Invalid AGC value
an explanation:
GOOD—Good value
FAIR—Marginal signal level, check the signal
POOR—Unusable signal
INVALID—Invalid AGC value
Data activity
indicator
indicator
EMM data
activity indicator
activity indicator
OOB
diagnostic
indicator
diagnostic
indicator
Carrier lock indicator
(L = locked, U = unlocked
(L = locked, U = unlocked