Raynav 300

Bottom Line

Well-Known Member
Oct 6, 2006
1,807
Table Rock Lake(Branson MO)
Boat Info
2003 360 DA
2002 Sea Doo GTI (sold)
2002 300 DA (sold)
Engines
Twin Mercruiser 8.1L
Westerbeke Generator
I recall some discussion on this GPS on SRO...but cannot remember the details. My unit has become slower and slower at picking up a "fix". Is there a battery in the GPS antennea that need to be changed? And if so, can an individual do it or does the dealer need to do it?
 
the problem is the antenna goes bad. the fix that most people took was to install a new 125 unit (antenna), set it in master mode, and set the 300 to repeat mode.

the 125 would be switched with its power, or power wired to a shared switch on the helm.

i bought a 125 that i never installed, and it's sitting in my bathroom floor.

i need to check that the new boat has a new antenna (i'm thinking so, since the radar and everything else was replaced). if it does not, i'll install the 125. if it does, i'll sell it.
 
Mike:

Let me know when/if you sell the 125....I might be interested......the 300 on my 410 has been fixed once already....it's just a matter of time.....


I made the same upgrade on my 380.....leave the passive antenna on the arch as a backup....it still worked...sometimes.....125 wired as seatalk and powered from the seatalk bus when power turned on to the unit....

later,
 
I had to replace the antenna on my Raynav 300 unit last year because it kept losing its fix. The problem on my unit was the bonehead that installed the antenna had the cable in the hardtop tight as a guitar string and when the hardtop would flex, it would pull the cable on the antenna. The only way to get it working was to remove the dome light that was underneath it and "jiggle the wire".... I got a new antenna.

I also bought a 125 but it is hooked into my marine pc through an NMEA serial port unit (marine pc has a nauticomp display and now runs wxworx, Maptech, itunes and serves as a wireless router). I've been thinking of canning this Raynav unit though and putting in a second 125 and an NMEA multiplexer/Seatalk bridge. There is a nice unit from Brookhouse ( http://brookhouseonline.com/nmeamux.htm ) that let's you plug in 2 GPS units on an NMEA network and it does automatic failover if 1 GPS dies. It would also allow my marine pc to see all the instrumentation on the Seatalk network. I'm not sure of the downside of having the GPS units on an NMEA network instead of directly on the Seatalk network for the RL80CRC chartplotter though... I also don't ever use the Raynav 300 display and I would like to install my new ICOM single sideband head unit in that hole. Turns out they are almost the exact same size.

Boy... I'm sure this rambling got off topic... sorry.
 

Forum statistics

Threads
112,944
Messages
1,422,714
Members
60,927
Latest member
Jaguar65
Back
Top