NGT-200 USER MANUAL
NGT-200 UM.E 20210520-02
38
RxX -
where
X
(
A
or
B
)
is the AIS channel of
received message;
ID X -
where
X
(1 to 26)
is the number of the
message, according to М.1371-5;
413999997
– MMSI number of AtoN device.
– Status Bar , 4-cell complete state.
The complete state of the status bar confirms
that the tester has collected all necessary
information about AtoN device under test and is
ready to save the data into non-volatile memory.
The tester needs to:
-
receive signal in channel A (161.975MHz);
-
receive signal in channel B (162.025MHz);
-
receive Message 21 (main message for
AtoN);
-
receive Message 6.
After that the data can be saved in non-volatile
memory of the Tester by pressing
F2
key.
The information will be recorded in the next free
profile (
Prof:xx
).
5.3.6
Test BASE station
By entering this mode you should input
manually the MMSI number of the tested AIS
base station to ignore 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.
This mode allows reception, decoding or measuring and displaying of the following
information (
all data is as an example only
):
=== Test AtoN ==
RxB ID 6 413999997
dF -0023 Hz
S RSSI 42.3 dBm
Slot 968
A B 6 21
...........Save-F2
Prof:xx
==STAT. ID FILTER=
ID: 000000000
No filter
F1 – Clear filter
Start – ENTER
=== Test AtoN ==
RxA ID21 413999997
dF -0025 Hz
S RSSI 42.1 dBm
Slot 432
A 21 ...
..................
