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I have lowrance 3500c was going past cape may ferry and got a ? at the boat on the screen.Call lowrance they said my antenna got zaped by the ferries radar.Got anew antenna 50 bucks but they gave a chip to down load for free.One thing make sure your inline fuse is in good sharp the one that came with unit was junk replaced it no problem. Good luck hoped this helped. The new antenna is radar safe so they say.
 

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Discussion Starter · #4 ·
Thanks guys went on there web site about a month ago i think that it may be the cable going to it i dont know much about this unit it came with the boat do u guys know where i can get parts for it
 

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Once again.... before you throw good money after bad.... check the power to the NMEA 2000 bus. It can be found in the manual, and is part of the power supply cable. If the network is no powered up, the GPS will not work. Also trace the cable back to see if it is on a accessory switch. The GPS and NMEA 2000 network will still draw power if the unit is off, and could cause a dead battery. This is why most of the time they are on switches.
 

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Seasparks I have lowrance 3500c. I have two blue connection one to the unit and one to the NMEA cable.Which I think goes the antenna. I am looking at my manual and I see optional power off switch for salt water installations. I do not have that. Should I install? I have an onboard battery charger (promariner charger) What do you think I should do??
 

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Seasparks I have lowrance 3500c. I have two blue connection one to the unit and one to the NMEA cable.Which I think goes the antenna. I am looking at my manual and I see optional power off switch for salt water installations. I do not have that. Should I install? I have an onboard battery charger (promariner charger) What do you think I should do??
I wouldn't bother with the switch. I did see in the manual that they have it listed for "saltwater" installations... For the life of me I could not figure out why they have it.

I'm sure you have a main battery switch that you turn off when you leave the boat anyway, so there is no risk of it killing the battery what so ever.
 

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Seaspark you are the man. I am heading to the boat today to wrap her up. I am also having a problem with my radio which is new also have a new antenna shakespeare do not know # will get it today. Problem is just not receving transmission from long distance. Also changed fron a crimped to soldered connection. Thanks for your help.
 

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Seaspark you are the man. I am heading to the boat today to wrap her up. I am also having a problem with my radio which is new also have a new antenna shakespeare do not know # will get it today. Problem is just not receving transmission from long distance. Also changed fron a crimped to soldered connection. Thanks for your help.
I have been around this block once or twice ;)

With the VHF, try seeing how many weather channels you can recieve. Down in cape may, you should be able to get atleast 4, one from DE, MD, and two from NNJ. This is a easy way to tell if your connection is good. You should also see a difference with the antenna up as opposed to down. Drop me a line if you need more help.
 

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Discussion Starter · #14 ·
I checked the wires today not all of the wires were hooked up .so i wired them up and still doing the same thing .i think i need a new power cord i found some pinch wires on power cord and the cable to the gps. What do you guys think.:confused:
 
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