Page 41
3
Check that the
Antenna power
setting is set to
Disabled
o
n the
Receiver options
setup screen
4
If these instructions do not work then please contact your
service agent
No new message reception
1
Is the vessel within range of a NAVTEX transmitting station?
2
Has there been a scheduled transmission since the
SMARTFIND GMDSS NAVTEX was first switched on?
3
Check that the antenna is clear of obstructions and has not
suffered external damage and that the antenna cable is not
damaged
4
Check that the antenna fault icon is not being displayed on the
status bar at the top of the display
5
View the
Setup mode: Receiver options
screen check
That the correct antenna power setting is selected according to
antenna type fitted, ‘active antenna’ require that the antenna
voltage to be set to; ‘Enable’
6
View the
Setup mode: Receiver options
screen view
the signal strength indicator, a constantly strong reading (no
receive icon displayed) can indicate that a strong local
interfering signal is blocking NAVTEX reception.
Testing a 93-063A tri-channel active antenna
If it is suspected that reception is being compromised by the antenna performance,
the antenna should be checked for electrical damage.
Disconnect the antenna from the SMARTFIND GMDSS NAVTEX by unscrewing the
TNC connector at the back of the SMARTFIND GMDSS NAVTEX.
Using a DVM set on resistance, measure across the TNC RF connector from the
centre pin to the outer ferrule, looking back up towards the antenna.
DO NOT ATTEMPT TO MEASURE THE RESISTANCE
OF THE TNC SOCKET ON THE SMARTFIND GMDSS NAVTEX.
A good antenna will show a reading in the range 1500 – 2000 ohms.
A failed antenna will show a reading < 1000 ohms.
If a reading of greater than 5000 ohms is measured, then there is a continuity problem
with the connector or cable; these should be checked for damage or misconnection.
Note that these resistance values only apply to a 93-063A active antenna as supplied
by Orolia Ltd. Other active antennas will have different resistance readings; consult
the supplier in order to check such antennas.
Page 42
SPECIFICATIONS
Technical
Specification
SMARTFIND GMDSS
NAVTEX Receiver
Display:
6 inch, ½ VGA (480 x 320
pixels) Daylight viewable
colour STN with adjustable
backlight and screensaver
Controls:
Backlight/ contrast key, Enter
key, four soft menu keys,
Tracker pad
Receivers:
Receiver A, Frequency
518kHz
Receiver B, Frequency
490kHz
Receiver C, Frequency
4209.5kHz
Sensitivity <2 microvolts
Frequency sta/- 10Hz
Connectors:
15 way D-type, Power, Alarm
& COM 1 data (2 meter cable
supplied with connector pre
wired)
9 way D-type, Printer/ COM2
Antenna connector, 50 ohm
TNC
Ground connector, 1/8” Spade
terminal
Data interface:
COM 1, RS422 (NMEA 0183)
IEC 61162-2 serial port
COM 2, RS422 (NMEA 0183)
IEC 61162-1 serial/ printer
Baud rate, 4800, 38400,
115200.
NMEA sentences supported
(in priority order) RMC, GLL,
ZDA for UTC and NRX, NRQ,
NMK, ACK, ALR for NAVTEX
functions.
Alarms:
Vital/ SAR message receipt
(internal buzzer)
Alarm state NMEA message
data output COM1/COM2
Remote alarm relay contact
1A @ 120VAC/ 24VDC
Antenna voltage
output
12 V DC @ 100mA
(selectable)
Antenna type
(option)
50 ohm, dual band 490 -
4209.5 KHz active or passive
NAVTEX message
memory:
300 x 500 character messages
per receiver (minimum)
Dimensions:
219W x 151H x 76D mm
(excluding connectors)
Weight 1100g (including
bracket)
Environmental:
Operating Temperature Range
-15° to +55°C
Storage Temperature Range -
20° to + 55°C
Humidity 0 to 95%, non-
condensing
Compass safe distance 0.87
metres
Mounting:
Desk-top or bulkhead (flush
panel fixing kit included)
Power:
Voltage range 12/24 V DC
nominal (10.8 V to 31.2 V)
Consumption, with backlight
on 8.6 W @ 24 V DC
Internal auto resettable fuse @
1.8 A DC
Technical Standards:
IMO Resolutions,
MSC.148(77) A.2.1 (17),
SOLAS Regulation IV/7.1.4,
ITU-R M.540-2, ITU-R M.625-
3, IEC 60945-4, IEC 61162-1,
-2, IEC 61162-2, IEC 61097-6
Additional Sales
Options:
ANA1 light duty active
NAVTEX antenna with 20m
cable and stand off bracket
ANA2 heavy duty active
NAVTEX antenna with PL
socket
Type A stand-off mounting
bracket for ANA2
Type B long reach stand-off
mounting bracket for ANA2
Type C deck mount bracket for
ANA2
Antenna Cable kit for ANA2,
20m
