AE–1800 Instruction Manual
Customizing Operation via Menu System
4 . 8 . S e l e c ti n g a n d R e j e ct i n g Tr a n sm i t t e r s
4.8.1. In t r od u c ti on
Initially the equipment is set to
*
1
display NAVTEX messages from all stations on the
air within the coverage area,
*
1
store those messages in memory and output them to the
printer port (
RS–232C
),
*
2
I / O DATA
port and INS port (
RS–422
). There may be cases
where you do not wish to display, store, or output future messages from specific
transmitters that are not of your concern to your navigational needs. Carrying out the
following procedure allows you to select or reject transmitters independently for
message display and storage in memory, for message output to the printer port, and
message for output to the INS port.
A list of the transmitters that are currently rejected from display and storage can be
checked by pressing
with the message screen showing.
*
1
:
A message will be displayed and stored in memory unless its character error rate (CER)
exceeds 33%. CER is the ratio of the number of the correctly received characters to the
number of corrupt characters per message
.
*
2
:
The I/O DATA port (
I/O DATA
)
outputs the same message output as the printer port.
4.8.2. S e t t i n g Procedure
To reject a specific station, execute the following step–by–step instructions:
(1) Highlight option “
4: MAKE SEL / REJ SETTINGS
” by pressing
/
, and
then
. This opens a submenu as shown below with the following options:
1: SYNCHRONIZE BOTH RECEIVERS
: Applies same settings to both receivers.
2: FIRST RECEIVER (518KHZ)
:
Makes settings for first receiver alone
.
3:
SECOND
RECEIVER
:
Makes settings for second receiver alone.
<
C A U T I O N
>
There are NAVA REAs where t he same ID is shared by t wo transmi t ters, one on
518 kHz and t he o ther on 490 or 4209.5 kHz, located in t wo di fferent count r ies in
the same ser vice area. In such cases, choosing opt ion
“
1:SYNCHRONIZE BOTH
RECEIVERS
”
will result in unintended rejection set tings on ei t her f requency.
Figure 4-9 Making Settings for First Receiver – Step 1
(
continued on next page
)
S Y S T E M M E N U
1:
MAKE DISPLAY SETTINGS
2: SELECT 2ND RECEIVER FREQUENCIES
3: TURN ON / OFF KEYPRESS BEEP
4: MAKE SEL/ REJ SETTINGS
5
SEARCH STORED MESSAGES
6. SELECT OUTPUT MESSAGES
7. SET OUTPUT PORTS
8. START SELF–DIAGNOSTIC TESTS
9: TURN ON / OFF MESSAGE ALARM
0. RESET TO FACTORY DEFAULTS
4: M A K E S E L / R E J S E T T I N G S
1 : S Y N C HR O N I Z E BO T H RE CE I V E R S
2 : F I RS T R E C E I V E R ( 5 1 8 K HZ )
i
3 : S E C O ND R E CE I V E R
2: F I RS T RE C E I V E R ( 5 1 8 K H Z )
1 : S TATI ON S
I
2 : M E S S AG E S
