AS 680/682
Record and Replay Description, Operation and Maintenance
ADS−B
4−68 Ed. 10.07
4.6.4.2.2 RRP Data Parameter: Time Scheduling
It is possible to replay only a certain part of a replay file. This feature is only applicable, if reading from
file and not from standard input. To replay a part of an input file, a starting time and a duration is
needed.
For that reason there is an indication, at which time of day (in hours, minutes and seconds) the input
time starts and how long (in hours, minutes and seconds) the reading of the input file lasts according
to the timestamps given in the input. This information is updated every time, when the file selection
box, which opens pressing the ’Choose’ button on the page ’I/O Parameter’, is closed. This is why
it is not possible to enter an input file directly into the ’Filename’ textfield of the page ’I/O Parameter’
referring to section 4.6.4.1.1 .
The information about the start and the duration given in the input file, is a help to determine the range,
the user intents to replay.
The user enters the desired start of replay interval and a duration of the replay by entering a duration
of the format ‘hours:minutes:seconds’ or ‘seconds’ into the corresponding text fields. Even a duration
of more than 24 hours is possible, although the start of interval can only be within the first 24 hours
since starting time given in the replay file.
It is only possible to select a replay interval inside the interval calculated by the tool. If a start time
outside the applicable replay interval is selected, then start time is automatically set back to the begin-
ning of the replay file.
The actual replay time can be shortened or lengthened by entering a corresponding replay factor (see
section 4.6.4.2.1 ).
4.6.4.2.3 RRP Data Parameter: Filter
The filter settings are a part of the notebook page ’Data Parameter’. The following filters are available:
S It is possible to replay only data recorded from a certain Ground Station. Clicking the correspond-
ing check, enables the user to enter a System Area Code and a Ground Station identification (Sy-
stem Identification Code) into the corresponding textfield. Only telegrams of the Ground Station
with the given identification are replayed.
S It is possible to replay only telegrams recorded from certain targets, e.g. from a site monitor. In that
case, the corresponding check must be enabled and the target address of the target to be replayed
has to be entered. The target address is expected in a hexadecimal representation, but is not case
sensitive, i.e. it does not matter, if an address 4004C1 or 4004c1 is entered.
It is possible to use the asterisk ‘*’ as wildcard, i.e. ‘4004*’, for instance, accepts all targets with
an address starting with ‘4004’. This wildcard is only possible as last character of the search string,
e.g. search strings ‘4004*1’ and ‘*4C1’ do not work.
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