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Hi, I needed this myself, found your post but no solution so after further... here you are. I tried it mated to a lowrance NMEA & it worked fine. Mine had a busted plug so the wires were already exposed with the pins handy to connect straight into a screw connecting block!
If you're using a raystar 125 antenna, you will have to power the red wire + and the shield wire - separately. Sl70's don't provide power over seatalk. Also make sure your green and brown wires are properly connected. If it's a 120 just power the red and sheild(black) and leave off the all except the yellow that's your data. If you still have nothing may probably have a problem in the antenna itself.
That unit uses a TNC connector. Just have someone install a new one on the end of the cable. IT's a little more difficult than a F connector for a TV but not rocket science. You can also send it in to Mid-Shore Electronics. Just google them and get their number. They have alot of experience with the older stuff.
Yes you have to hook up the red wires together to the + and both black ones to the negative, otherwise the antenna won't be supply in current , and don't forget to insert behind the red wire a fuse and a switch to avoid to discharge your battery .
If you are looking at the external connection end with it in a "V" position, on the right - the upper one is green & the lower one is red. On the left - the upper one is yellow & the lower one is black (or the big bunch of copper wires). Be sure you are reconnecting an exact pin set up - an s-video is not the same (unfortunately). If you found a replacement antenna or a correct replacement part, please let me know where. I have to repair mine too.
Hi. I have G series Raymarine and I listen the noise when swtich on I am not shure , may be from the ventilation (the fan).
I not find troubleshooting to G raymarine, I hope find the soulatoin thanks.
If it is an RS 120 or an RS112 antenna you do not need to change it.These are both active antennas in other words they do all the gps computing in the unit itself. You need to look at the wire from the antenna. If it is a coax cable(2 wire) it will not work.If it is 3 or 4 wires it will work. If 3 wire (red ,silver yellow) just hook up color for color.If 4 wire you are going to have to figure out the wiring for it from the units wiring diagram.That could be a big enough pain that you might be inclined to change to the new antenna. If you wire the new RS125 antenna you must wire it to the seatalk buss. The seatalk wires are Red Silver and Yellow.The wire from the RS125 are red yellow silver green and brown.Wire as follow to your sea talk cable.Yellow to Yellow, red to red , silver to silver, green to red, brown to silver.
Hope this helps.
i just got it back from Lowrance and they replaced antenna and it works, but for how long is anybody's guess. The technician at Lowrance told me the antenna should be at least 3 feet from base unit and he thinks that is problem, because mine is only 2 feet. Why doesn't it say that in manual, if true and why doesn't MarineMax install it properly. MarineMax just gave up trying to help me, even though it was under their warranty. They just care about the sale and their installation was shoddy at best with wires hangiing all over the place. I decided to take care of it myself, so we will see.