Jim B
Well-Known Member
- Joined
- Jan 30, 2002
- Messages
- 4,257
- Reaction score
- 5
Hey guys i have two issues with my 520c that i need to get resolved. One it pretty cut and dry the other not so much. Since you guys are the resident experts on Lowrance sonar here i think you may be able to help or at least give me an opinion.
The issue is nema 2000 networking. I have a 332c and a 520c networked together and sharing a gps puck on a red nema network. The 332c will see and use the GPS every time without fail regardless of if its at the front or back so the backbone works and its got good power. The 520 on the other hand works when it feels like it, it was fine at first but now it wont work 80% of the time. I have deconstructed the network more and eliminated the 332 and the 20 still wont see the gps. Im thinking i have a bad cable between the t connector and the unit or the unit has something wrong with it. Im leaning too something being wrong with the unit and this is what i need your opinions on.
When i look at the sonar picture on each unit there is a huge difference in the quality of the picture that i see. At first i thought it may be the transduser that i had the 520 plugged into that is a glue in the hull deal. Today i decided to experiment a little and i dont believe thaqts the case. What i did was I took both units and used the same transducer on the trolling motor as a test swapping them off to compare the picture. I exprimented using the exact same settings on both and also trying to adjust both for the best possible picture. Here are examples of what i get.
Im sure you noticed that the 332c was much smoother over all. Generally on that unit the picture is very sharp and clear and had been for the 4 years ive had it. On the 520c its very blocky and its like that regardless of depth or bottom composition. It almost looks like its zoomed way in but its not. In color mode the 520c is almost unuseable. I can play with every setting on the 520 and i cant get it to look any better then what i have above. Im thinking there is something seriously wrong with this unit. Thoughts?
The issue is nema 2000 networking. I have a 332c and a 520c networked together and sharing a gps puck on a red nema network. The 332c will see and use the GPS every time without fail regardless of if its at the front or back so the backbone works and its got good power. The 520 on the other hand works when it feels like it, it was fine at first but now it wont work 80% of the time. I have deconstructed the network more and eliminated the 332 and the 20 still wont see the gps. Im thinking i have a bad cable between the t connector and the unit or the unit has something wrong with it. Im leaning too something being wrong with the unit and this is what i need your opinions on.
When i look at the sonar picture on each unit there is a huge difference in the quality of the picture that i see. At first i thought it may be the transduser that i had the 520 plugged into that is a glue in the hull deal. Today i decided to experiment a little and i dont believe thaqts the case. What i did was I took both units and used the same transducer on the trolling motor as a test swapping them off to compare the picture. I exprimented using the exact same settings on both and also trying to adjust both for the best possible picture. Here are examples of what i get.
Im sure you noticed that the 332c was much smoother over all. Generally on that unit the picture is very sharp and clear and had been for the 4 years ive had it. On the 520c its very blocky and its like that regardless of depth or bottom composition. It almost looks like its zoomed way in but its not. In color mode the 520c is almost unuseable. I can play with every setting on the 520 and i cant get it to look any better then what i have above. Im thinking there is something seriously wrong with this unit. Thoughts?
