3. MAINTENANCE, TROUBLESHOOTING
3-5
3.4.3
VHF communication test
The VHF communication test checks for proper transmission and reception over the
VHF channel.
1. Press the
MENU/ESC
key to open the main menu.
2. Select [DIAGNOSTICS] then press the
ENT/ACK
key.
3. Select [COMMUNICATION TEST] then press the
ENT/ACK
key.
4. Input the required MMSI, referring to the list at the right of the screen. You can
also select the test target from the list at the right of the screen using the arrow
keys, then press the
ENT/ACK
key.
5. Select [START] then press the
ENT/ACK
key.
When the test is complete, the
results are displayed for both
channel A and B, along with a
reason for test failure where ap-
plicable.
"OK": Normal
"NG": No Good. Unable to com-
municate with specified vessel’s
(MMSI) channel.
The result "NG" appears with a number explaining the failure. The number and
meanings are listed in the table below.
6. Press the
MENU/ESC
key to return to the [DIAGNOSTICS] sub-menu.
Number
Reason
Measures
1
No response. The message was not
acknowledged by the test target.
Change targets, then repeat the test.
2
Own ship MMSI is not set.
Refer to the installation manual for this equipment
and input the MMSI.
3
The FA-170 is set to “receive only”
and cannot send a test message.
Change the setting for [CH INFO] to [TX/RX AorB]
from the [REGION LIST]. See section 1.10.2.
Note:
The system automatically transmits when
the setting is changed to [TX/RX AorB].
4
The FA-170 is in silent mode and
cannot send a test message.
Disable silent mode.
5
Less than one minute interval be-
tween messages sent.
Wait for more than one minute, then repeat the
test.
6
Failed for an unknown reason. (Oth-
er than those above.)
There may be an obstacle (land mass, etc.) be-
tween your vessel and the test vessel. Manually
input a different test target MMSI then repeat the
test.
COMMUNICATION TEST
: BACK
: SELECT
MENU
ENT
< START >
TEST TARGET
[ 15NM~25NM TARGETS ]
RNG
MMSI
15NM
16NM
17NM
17NM
19NM
20NM
20NM
111111110
222222220
333333330
444444440
555555550
666666660
777777770
= NO ENTRY =
1:
2:
3:
4:
5:
6:
7:
8:
:
CH A RESULT
- -
- -
CH B RESULT
[ NG REASONS ]
1=NO RESPONSE
2=NO MMSI
3=RECEIVE ONLY
4=SILENT MODE
5=OTHER
000000000
: CURSOR
Select [START], then press the
ENT/ACK
key to begin the communications test.
Available test targets list showing the
MMSI of each target and range to target.
The FA-170 automatically selects targets
with a range of 15 NM to 25 NM for this
list with CLASS A type targets listed
above other types.
COMMUNICATION TEST
: BACK
: SELECT
MENU
ENT
< STOP >
TEST TARGET
[ 15NM~25NM TARGETS ]
RNG
MMSI
15NM
16NM
17NM
17NM
19NM
20NM
20NM
111111110
222222220
333333330
444444440
555555550
666666660
777777770
= NO ENTRY =
1:
2:
3:
4:
5:
6:
7:
8:
:
CH A RESULT
CH B RESULT
[ NG REASONS ]
1=NO RESPONSE
2=NO MMSI
3=RECEIVE ONLY
4=SILENT MODE
5=OTHER
000000000
: CURSOR