ICS Nav6 Plus User Manual page 6

Nav6 Plus Navtex System User Guide
transmitters. Each station is allocated a 10-minute time slot every 4
hours so that many stations can share the same frequency.
The Nav6 receiver stores all messages received from all stations.
Nav6 users can set-up filtering to display only specific message
types from selected stations. Users can choose to display
information from just the single station that serves the sea area
around their position, or from a number of stations.
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The Display Unit uses a high resolution (480 x 320 pixels) backlit
LCD designed to display NAVTEX messages in a choice of text
sizes.
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The display unit contains a large non-volatile memory used to
store NAVTEX messages, the NAVTEX station database, all of
the user settings, filter options and LCD contrast and backlight
levels. All messages and settings are retained during power
down.
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Several messages can be displayed at once (depending upon
the length of the message) and messages can be scrolled up
and down the screen with a single keypress.
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Messages can be filtered and sorted using a number of user
selectable criteria.
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The Nav6 can act as an instrument repeater and is capable of
displaying data in a choice of formats.
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Audible and visible alarms can be set up to indicate receipt of
SAR and/or New Messages.
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A sleep mode allows long standby periods with minimum power
consumption, such as when the vessel is left in a marina with
main batteries being trickle charged from the shore.
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The Sensor Unit contains a short whip antenna and dual receiver
that can receive on both 490kHz and 518kHz.
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The sensor communicates with the display unit via a serial
interface. Multiple sensors and displays can be connected
together should an extended system be required.
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The Nav6 stores all correctly framed NAVTEX messages that it
receives in non-volatile memory, regardless of station, message
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