ETR 290
The default ETR 290 thresholds are based on the ETSI TR 101 290 guidelines. These
are however fairly strict, and the user may want to alter the limits to better reflect
receiver sensitivity. The ETR 290 thresholds should also be changed if there are tables
that are not relevant for a system, or if the user requires alarm functionality that
exceeds the ETR 290 guidelines, for instance to raise alarms if the number of services
present in a signal is lower than a preset limit.
The default PID and service thresholds do not affect alarming at all, they are
completely transparent. The thresholds may be altered for instance in order to mask
an alarm generated by an unreferenced PID or to ensure an alarm is raised if a service
or PID bitrate is outside preset limits.
Creating a new threshold template is done either by copying an existing one and
altering the copy, or by creating a new threshold template from scratch. The
thresholds are defined in these views:
ETR 290 - ETR thresh.
,
ETR 290 - PID
thresh.
,
ETR 290 - Service thresh.
, and possibly
COFDM/QAM/VSB/RF/SAT -
COFDM/QAM/VSB/RF/SAT threshold
(if a demodulator is present in the chassis).
The thresholds are associated with streams in these views:
ASI - Setup
,
Ethernet -
Multicasts - Edit
and possibly
COFDM/QAM/VSB/RF/SAT - Tuning setup
(if a
demodulator is present in the chassis).
PROBE USERS' MANUAL VERSION 5.0
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-
www.bridgetech.tv
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