User's Manual

Table Of Contents
©1999 Navia Aviation AS 21464-5 Operation of RMM
USER MANUALNORMARC 7050
MARKER BEACON
10-31
FAN MARKER
If the station is configured as a FAN MARKER, the keying may be set quite freely. Each of the
24 Data boxes corresponds to one tick which endures for approximately 150ms. An X indi-
cates sound while an empty box indicates silence. L
ETTER LENGTH is how many ticks are used
in a sequence. The table below shows the expected lengths for keying elements:
Table 10-14 Fan Marker keying elements
Let's say you want to transmit an X. Then you should program
DASH-SPACE-DOT-SPACE-DOT-
SPACE-DASH-LETTER SPACE. This gives a LETTER LENGTH of 3+1+1+1+1+1+3+2=13 as shown
in Abbildung 10-27
Figure 10-27 Fan marker keying programming.
Note that the Fan Marker settings are available only when the transmitter are configured as
Fan Marker.
10.5.11 Event list
The Event List shows the last 50 events for a specific Marker Beacon station. An event is for
example
CHANGE OVER, SHUTDOWN, MAINTENANCE or WARNING. These events are stored in the
stations internal memory in order to diagnose errors.
Figure 10-28 The Event List
Keying element #ticks
Dot 1
Dash 3
Space 1
Letter space 2