FLARM FLARM V3+Mm, Руководство пользователя

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Manual external FLARM™ / PowerFLARM™ Display V3+Mm
External FLARM™/ PowrFLARM™
Display V3+Mm
with Software-version 3.7
Page 13
Operation modes
FLARM can be operated in two operation modes “Nearest” and “Warning”.
The “Warning-Mode” appears identically in both and indicates in most cases an immediate threat that requires
prompt and appropriate reaction.
When starting-up the device the “Nearest-Mode” is always active.
Nearest-Mode
In “ Nearest-Mode ” other aircraft in nearby surroundings are indicated, if they represent no threat after
evaluation. Such traffic information is limited to a diameter of 3 km and a vertical separation of 500 m. The
nearest airplane is always indicated.
The visual indication appears in
yellow and static (without flashing) and there is no sound; if no airplane has
been indicated. When an airplane is received, a clicking sound will begin as a reference.
As soon as FLARM confirms the airplane as a threat it will automatically change to “Warning”-Mode. When
the threat has disappeared it returns back to “Nearest”-Mode.
The selection of this mode is shown after a button press (> 2 s) with a “downwards” symbol
indicated on
the display.
Warning-Mode
In “ Warning-Mode ” the signal occurs only after an evaluation confirms an approaching threat.
Warnings are always shown with . red flashing . and are accompanied by an acoustic signal. Depending on
the threat
(3 threat levels) the flashing and buzzing frequencies will change.
The selection of this mode is shown after a button press (> 2 s) with an “upwards” symbol
indicated on
the display.
Traffic Functions
Aircraft Warning
The LED which is illuminated corresponds best to the direction of the actual position of the most dangerous
airplane
relative to own movement direction compared with the earth bound coordinate system (Ground
Track) . This signal can be distorted under strong winds, pushing the airplane relative to side winds in flight
(side flight) or air speed is too low with respect to the coordinate system (Ground Speed) (e.g. hovering of
the helicopter). The indicator updates every second.
Both the
. red flashing . visual warning and the acoustic warning (buzzing) appear at the same time.
The early-warning period is brief, it is given only for a few seconds and is even shorter by fixed-obstacle
warnings.