TRAFFIC DISPLAY INTERFACE
82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-1
CHAPTER 8 TRAFFIC DISPLAY INTERFACE
The SN3500 can display nearby transponder equipped aircraft
when interfaced with a compatible TAS or TCAS processor. Please
refer to the Pilot’s Guide for the specific traffic system installed in
the aircraft for a complete description of the capabilities.
Note: The SN3500 can be interfaced to a TCAS II processor but will
function only as a traffic display as vertical guidance information
required for conflict resolution will not be displayed.
Figure 8-1 SN3500 with traffic
Traffic Symbology
The SN3500 uses standard RTCA symbology to represent traffic.
Alerting Traffic
DISPLAY CONDITION DESCRIPTION
Resolution Advisory
(RA) (Available with
TCAS II Only)
Immediate threat that
requires evasive action.
Note: Vertical
guidance information is
NOT shown on the
TRAFFIC DISPLAY INTERFACE
82005-PG-D SANDEL SN3500 EHSI PILOT’S GUIDE PAGE 8-2
SN3500 display.
Traffic Advisory (TA)
Traffic within 15-30
seconds of closure, or
within 0.20 to 0.55nm
and +/-600 to +/-800 ft
of your aircraft
Traffic Alert
No Bearing / No
Altitude
Alerting traffic with no
bearing and no altitude
information available.
Traffic Alert
No Bearing
Alerting traffic with no
bearing information
available.
Non-Alerting Traffic
DISPLAY CONDITION DESCRIPTION
Proximity Advisory
Traffic within 4nm and
+/-1,200 ft of your
aircraft
Other Traffic
Traffic not representing
an immediate threat
Out of Range Traffic
RA and TA targets
outside of the currently
selected display range
will be shown as a half
symbol against the
compass rose at the
corresponding bearing.
Relative Altitude
Relative altitude in hundreds of feet and vertical trend information
are also given for each target aircraft. Note: Values greater than
9900 feet are shown as ‘99’.
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