User's Manual
ISO 9001:2000 Cert. N°4500/1
Version 1.1 SDT_ARK6_User_Manual_ENG_vATSC Page 113 of 206
Alarm
Description and limitations
Troubleshooting
Mode(2)
RF mask (1)
[ISDB-T] MEAS MER
Layer A
Measure MER goes under the alarm
threshold.
Check the configuration
Hardware fault
ISDB-T
0
[ISDB-T] MEAS MER
Layer B
Measure MER goes under the alarm
threshold.
Check the configuration
Hardware fault
ISDB-T
0
[ISDB-T] MEAS MER
Layer C
Measure MER goes under the alarm
threshold.
Check the configuration
Hardware fault
ISDB-T
0
[ISDB-T] MEAS Pre-
Viterbi BER High
Layer A
Measure Pre-Viterbi BER goes over the alarm
threshold.
Check the configuration
Hardware fault
ISDB-T
0
[ISDB-T] MEAS Pre-
Viterbi BER High
Layer B
Measure Pre-Viterbi BER goes over the alarm
threshold.
Check the configuration
Hardware fault
ISDB-T
0
[ISDB-T] MEAS Pre-
Viterbi BER High
Layer C
Measure Pre-Viterbi BER goes over the alarm
threshold.
Check the configuration
Hardware fault
ISDB-T
0
[ISDB-T] FE Not
Locked
ISDB-T
X
[ISDB-T] FE Squelch
Front-End Squelch level goes over the alarm
threshold.
Check input signal and cable
ISDB-T
X
[ISDB-T] FE CN Low
ISDB-T
X
[ISDB-T] FE MER
Layer A
Front-End MER goes over the alarm
threshold.
Check input signal and cable
ISDB-T
X