Traffic On The Moving Map - Kanardia Nesis III User Manual

Nesis III User's Manual
• The transponder reply comes from an aircraft, which is NOT equipped
with ADS-B out. These are majority of small aircraft. This reply does
not include position, speed, direction. It has only altitude (C-mode)
and squawk. The device tries to estimate distance of the target based
on the transponder signal strength. A distance can be estimated (not
very reliably) but the direction can not. Such targets are called "non-
directional traffic" (or non-directional targets).
During flying device detects transponder responses from "non-directional" tar-
gets mostly. As direction is not known and distance is only a rough estimate,
their position can not be drawn on the map, but their presence is announced
to the pilot. This means that there may be frequent traffic advisories from
the system, but the actual position of the target is not known.
Such behavior can be turned off, see Section 5.4.
5.2

Traffic on the Moving Map

Flarm device sends traffic information that it detects in regular intervals. A
vertical or horizontal filter can be applied by the device to hide traffic that is
out of specified limits.
Such traffic is shown on the main navigation map only. The following symbols
are used.
Approximate position of the intruding aircraft that poses as non-
threat.
A Proximity Advisory indicates that the intruding aircraft is
within ±1200 feet and is within a 5 nm range, but is still not
considered a threat.
A Traffic Advisory is shown as a solid yellow circle. This in-
dicates an aircraft in vicinity, which shall be considered as a
threat.
A serious threat is shown as a solid red circle. In most cases
an additional warning window will appear on the screen in this
case.
Figure 42 shows an example of such map. Three aircraft are shown, non of
them as a threat.
On top of each symbol a relative vertical difference is shown and arrow on the
right side shows a climbing or descending aircraft.
5.2 Traffic on the Moving Map
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