NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
37
After transmit on receiver’s display will
appear such disposition of virtual vessels as
on image. Black triangle is the AIS receiver
under test.
Numbers of other vessels correspond to
MMSI of virtual vessels.
1
– 413999001
2
– 413999002
3
– 413999003
4
– 413999004
5
– 413999005
6
– 413999006
7
– 413999007
8
– 413999008
9
– 413999009
10
– 413999010
5.3.5
Test AtoN (Aids to Navigation)
AtoN devices can transmit Message 21 (basic), 6, 8 and 14.
By entering this mode you should input
manually the MMSI number of the tested AIS
device before starting tests. This allows ignoring
the messages from other AIS stations. It will
help to perform tests by means of antenna
through broadcast in port area.
You may directly input MMSI using numeric
buttons, or select the position by buttons
◄
and
►
, set it up by buttons
+
,
-
. After input of
MMSI press
Enter
.
The 000000000 MMSI number means the filter
is not applied, so the device will receive all
messages from any AIS station.
Note that here can be displayed not only zero number of MMSI. The tester
automatically uses the MMSI encoded from the last received message. So, if you
perform tests by means of Power Sensor and VSWR meter you may leave zero
MMSI number. Zero MMSI number is applied by pressing of
F1
button.
In this mode the following information will be received, decoded, measured and
displayed (
all data is as an example only
):
N
1
2
3
9
7
4
5
6
10
8
== MMSI FILTER ==
MMSI: 000000000
No filter
F1 – Clear filter
Start – ENTER
