NAV6 & NAV6plus

Why are the NAVTEX pages are missing on my NAV6/NAV6plus?

If your unit indicates that the antenna type is none then the LCD display has lost communication with the antenna sensor.

This will also flag the ERR tabs next to the two channel at the top of the display for 490 and 518KHz.

There can be many reasons for this, for example a poor connection or a break down in the antenna. For more assistance with this problem please contact support via the support page.

I am experiencing various problems interfacing my NAV6 to Raymarine...

Certain Raymarine (previously Raytheon) equipment offers the facility to bridge instrument data transmitted on SeaTalk to an NMEA output. Unfortunately this bridging facility is not comprehensive in all cases, for instance a RC520 will display wind information if it is available on the SeaTalk interface, but does not bridge the wind data to its NMEA output interface.

I am experiencing problems with my Raymarine Z290 SeaTalk to NMEA Bridge.

NAV6plus customers attempting to interface to Raymarine SeaTalk systems using a Raymarine Z290 SeaTalk to NMEA bridge may experience problems with the data contained within the RMB (recommended minimum navigation) sentence. Please ensure that you have the latest software from Raymarine in your Z290. Z290 Versions 6 and earlier (any Z290 unit purchased before May 2002) do not transmit the RMB sentence correctly which may result in one or more of the following symptoms on the NAV6plus:

How do I optimise NAVTEX reception?

The NAV6 or NAV6plus should give good NAVTEX reception within the published service area. Over a sea path, this can extend to as much as 200 – 300 nautical miles from the transmitting station during daylight hours. If the direct signal path crosses land to any significant extent however, attenuation may occur which could reduce the reception range to as little as 50 miles.

Navtex range increases significantly at night and can extend to as much as 1000 miles – sometimes more.


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