User's Manual
ISO 9001:2000 Cert. N°4500/1
Version 1.1 SDT_ARK6_User_Manual_ENG_vATSC Page 105 of 206
Alarm
Description and limitations
Troubleshooting
Mode(2)
RF mask (1)
[DVB-T2] Input
Overflow
Selected TS input overflow.
Check the capability of the current modulation
scheme
Check if the configuration has been loaded
T2
X
[DVB-T2] FE Not
Locked
Logical AND between FE TS lock and FE
demodulator ready (SyncStat equals to 6).
Check input signal and cable
T2
X
[DVB-T2] FE Squelch
Front-End Squelch level goes over the alarm
threshold.
Check input signal and cable
T2
X
[DVB-T2] FE Pre
LDPC BER High
Front-End Pre LDPC BER goes over the
alarm threshold.
Check input signal and cable
T2
X
[DVB-T2] FE SNR
Low
Front-End SNR goes under the alarm
threshold.
Check input signal and cable
T2
X
[DVB-T2] FE MER
Low
Front-End MER goes under the alarm
threshold.
Check input signal and cable
T2
X
[DVB-T2] FE Signal
Quality Low
Front-End Signal Quality goes under the
alarm threshold.
Check input signal and cable
T2
X
[DVB-T2] MEAS Not
Locked
Logical AND between Meas TS lock and
Meas demodulator ready (SyncStat equals to
6).
Check the configuration
Check if the configuration has been loaded
T2
0
[DVB-T2] MEAS Pre
LDPC BER High
Measure Pre LDPC BER goes over the alarm
threshold.
Check the configuration
Check if the configuration has been loaded
T2
0
[DVB-T2] MEAS SNR
Low
Measure SNR goes under the alarm
threshold.
Check the configuration
Check if the configuration has been loaded
T2
0