TM250 / P/N 250TM-(xxx)-(xxx)
Operation and Installation
15
Document No.: 03.310.010.71e / Revision: 2.10
Changes made by the user in this setting area are only
temporary. This means that after system reboot the standard
setting “once” will be used again.
Conditions for raising an audio alert differ depending on the type of traffic
(FLARM
®
, Mode S, ADS-B). The following table shows the different
conditions:
Once
Repeat
FLARM
®
Warning tone sounds once as soon
as a FLARM
®
signal is received.
As long as the alarm stays active
no further warning tone will sound.
The warning tone sounds
repeatedly as long as the alarm is
active or until it is confirmed by the
user
Mode S A warning tone sounds as soon as
the field strength of a Mode S
exceeds the selected threshold.
Because a Mode S target can be
identified by its 24 bit ICAO-
address, the warning is only raised
again when the target poses a
threat again.
As long as the measured field
strength of a target exceeds the
thresholds, the warning tone
sounds repeatedly. The warning
tone can be confirmed (silenced) by
the user.
Mode C As for Mode S
As for Mode S
ADS-B
Each time an ADS-B object enters
one of three protection zones,
(horizontally 6 NM, 3 NM, 1.5 NM;
vertically 1200 ft, 600 ft, 300 ft) a
single audio alert is raised.
While an ADS-B object is within the
protection zones, the warning tone
sounds repeatedly until the target
leaves the zone or the alert is
confirmed by the user.
Acoustic warning hints are made of different sound schemes in order to
specify the kind of threat in more detail:
FLARM
®
short-short-short
Mode S
long-long
Mode C
long-long
ADS-B
long
Besides these acoustic warning signals, visual warnings can be
configured as well (see following sections).
