FlarmLed display Version 1.0
October 2013
Page 7 of 15
4.2
Normal operation
In normal operation with short press, we can cycle between three different volumes (Low,
Medium and High). With long press, is enabled or disabled near mode. Switching of mode is
also visually supported with moving light around circle. Red moving light means, that near
mode is enabled, yellow moving light means, that near mode is disabled.
4.2.1
WARNING Modus:
WARNING Mode
will activate a red blinking diode, if another glider equipped with Flarm
will be close and a prediction for a
collision
risk is calculated. An audio warning will be also
executed. Higher collision risk will increase blinking frequency and audio beep rate. The
warnings are classified into three levels (See Flarm manual for details)
o
First level approximately
18 seconds
before predicted collision
o
Second level approximately
13 seconds
before predicted collision
o
Third level approximately
8 seconds
before predicted collision
4.2.2
NEAREST Modus:
Will show the direction to the nearest glider, which´s position is inside of radio range.
One
yellow LED will light
permanently
and there will
be no audio
. The unit will change over to
Warning Mode
automatically, if warning
criteria will be fulfilled and will continue in
NEAREST after collision risk will disappear.
4.2.3
Obstacle warning
An obstacle warning will be activated, if an obstacle is to be found in the front of the glider
and a collision risk is predicted. The warning is shown with two red LEDs, symmetrical
around the 12 o´ clock LED at 10 and 2, they alternate with those at 11 and 1. As we
approach to the obstacle the frequency of the alternation increases.
4.2.4
Undirected PCAS warning
Is the FlarmLED connected to a device, which also translates transponder signals with ADS-B
data into Flarm warnings, you will receive them in the same logic as above. Transponder
signals without ADS-B data contain no direction for the thread therefore you will get an
undirected warning with the following alternating signals:
