able to receive good messages day and night. If you are receiving asterisks
day and night and you are comfortably within range of your local station,
you may have a bad antenna or be suffering electrical interference to the
receiver from electrical equipment on the vessel
The NAVTEX installation
The NAVTEX installation consists of a NAVTEX receiver and
antenna{s} - and may also have a link to an external receiver {for
additional frequency reception}_
1
antenna(s)
antenna
_.. cable/antenna .. -
support ~ ______ connection --------.. ~
stanClllon
3
navtex
receiver
2
co-axial cable
I
I" - - - - - - -
support
stanchion ABOVE DECK
BELOW DECK
I r - - - - - - - - - - - - - - - - - - - - - - -I
4
printer
I I I
I VDU I ______ 5 - Pr<,>gra,?ming Area
~ might mclude:
o OA. power on/off
o 0. visual display unit
- illumination/dimmer control
o 0 • programmed-status key
o 0. station & message prol,'famming keys
- logging mode on/off
- paper feed
- alarm on/off
- alarm "stop" key
- receiver monitor
- self-test facility
Figure 9.2
The NAVTEX installation
6
external
receiver
182 THE NAUTICAL INSTITUTE
