|
|
| Recently received my LMS-520C and was looking at the installation instructions. It states the following: the LGC-3000 (antenna/receiver module) can communicate with the GPS unit either directly (using the supplied extension cable) or through a NMEA 2000 network. I would like to hook it up directly but the receptacle on the back of the GPS unit has male pins, the pigtail coming off of the LGC-3000 has male pins and both extension cables that came with the unit are male pins on one end and female on the other. Given this, how does the LGC-3000 hook up directly to the GPS unit? Thanks in advance.
EsoxnEyes |
|
| |
|
Member
Posts: 3899
| There should be a "Y" cable with the unit. The end with both cables goes to the head. One of the ends goes to the GPS receiver, and the other should have a 60 ohm terminator on it. At least that is the setup for the X-111. I'll look at the manual, and see if I can see anything different. |
|
| |
|
| i ran into the same thing with my 5200 today.
with the cables provided (gps line w/male end, short extension w/both male ends, long extension with 1 male and 1 female), there was no way to make it work where you could directly connect the gps puck to the display unit.
i ended up using the supplied double-T NMEA bus: running power to the NMEA line coming off the display unit, and plugging both the display and the puck into the device ends of the double-T.
|
|
| |
|
| Lambeau, this adds even more mystery as I received only a "single" T and both my extension cables were male on one end and female on the other. Its looking like my only choice is to utilize the T and the NMEA network. I'm going to give Lowrance a call tomorrow to find out what they mean by being able to "communicate directly". Will let you know what I find out. Thanks.
EsoxnEyes |
|
| |
|
Member
Posts: 3899
| Looks like the new units are supposed to come with the tees. Perhaps they packed yours with the wrong T and cables? Let us know how you made out with Customer Service.
You might also go to your dealer, and ask them to open up a different unit to see if they have the right items. |
|
| |
|
| Hey guys,
Finally got through to Lowrance and they indicated that I did receive the correct components, ie, the single T and male/female extension cables. Apparently at one point they were shipping the 520s with the double T but have since changed to the single T. Also, they only way I can hook up the LGC-3000 (antenna) is through the single T and extension cable they provided, it cannot be plugged directly into the 520. The tech I talked to also indicated the LGC-3000 should be installed 3' from the 520 to prevent interference. Prior to talking to him I ordered a RAM mount with the GPS adapter plate that puts the LGC-3000 within inches of the 520. Can anyone tell me if there is indeed interference problems if the LGC-3000 is located close to the 520.
Thanks.
EsoxnEyes |
|
| |
|
Member
Posts: 3899
| I wouldn't think there wuld be any interference. I ran my last GPS receiver on the dash right behind the X-15, and never had a problem. On my new boat, the receiver is within a foot of the front 334, and I don't have any issues. |
|
| |
|
Member
Posts: 14
| I just mounted a LCX-37C on the bow of my Warrior. According to Lowrances instructions the "simplest" connection would be a double "T" connector with two 60 ohm terminators and one fused /switched lead and the other lead goes to the module. I also purchased the ram module mounting plate, but did not use it because I drilled a 7/8" hole next to the ram mount base to run the cables and I did not want to have the "T" connector exposed to the elements, even though it probably would'nt be any different than the plugs on the back of the sonar/gps unit. I mounted the module about 12" from the base of the ram mount that holds the unit and I have no interference or noise. I ran the power/data cable,the network cable and the module cable through the 7/8" hole and used a split wire loom to cover the cables and keep them neat and together.
I only needed to use the single "T" connector,and a L.E.D. rocker switch to power the NEMA buss cable, and one 60 ohm terminator. If I had to guess, I would assume that they want you to use a double connector with 2 terminators for easier system expansion if desired.
So far the system is working great.
Edited by Jr. 6/29/2007 11:05 PM
|
|
| |
|
Member
Posts: 238
| I have the RAM adapter plate for the GPS module puck and it works great. I have never had any interference problems.
|
|
| |
|
Member
Posts: 9
| I have my puck less than 12" inches from my 520C, with zero problems. Enjoy |
|
| |
|
| I see this is an old post, but I thought I'd share my experience with the 520 and GPS puck. I had interference with the proximity of my puck. My boat has a LCX-28cHD and I mounted the 520 beside it for just a GPS unit. The 520 ended up being between the puck and the LCX-28cHD (looking at the displays, left to right) and my signal went down the drain.
Previously the 28 had perfect signal every time out with a EPE of less than 20' and typically closer to 15', but after the 520 install it was bouncing all over the place from 20' to hundreds of feet....never consistant.
I finally figured that the puck must be too close so I removed it from it's base and started moving it around and the error came right down to where it should be. When looking at the satellite screen you could see the signal strength raise and lower as I moved the puck closer to the 520 and further away. I ended up moving the puck to the other side of the boat and never had a problem since.
I think there may be something to do with where the puck is mounted more than the distance between them because my puck was almost straight left of the 520, but if it was behind or in front of the 520 the interference wasn't as bad, but the EPE still wasn't as good as it should or could be. If you're not less than 20' EPE, then you're not taking full advantage of the WAAS receiver in your GPS unit, IMO. |
|
| |
|
| I also wanted to add that while troubleshooting this problem I noticed that the EPE would drop right down to where it should be when I turned off the 520. This indicated to me that the 520 was the culprit and thought the two units were interfering with each other until I thought about the puck location.
I was at my last straw so I called Lowrance and while on hold they play those recorded tips and tricks and one of them was about having the puck too close to the receiving GPS unit. Hmmmm. Hung up before I spoke with anybody and sure enough that was the problem. Apparently many others have had the same question because they made that into one of their info deals while on hold. LOL.
|
|
| |
