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Advice on Lowrance 4G radar

Old 09-08-2014, 03:43 PM
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Default Advice on Lowrance 4G radar

I am considering purchasing a Lowrance 4G radar to go with my HDS 10, gen I. I know in addition to the radar I will need to purchase the direction sensor and some NEMA cabling to get overlay.

My question is on the resolution experienced on the water. I suspect the resolution is based on the size of the target. So, how far away have you seen and can the unit resolve say a flock of birds, a 20 foot fiberglass boat, a 50 foot shrimp boat, and a platform?

Thanks for you help!
Old 09-09-2014, 02:49 PM
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I have the 4G....but also have the NSSEVO to allow dual range radar.

Been on boats with 3G.

Honestly, without dual range capability, the 3G is a real good choice.

Neither is really a bird finder and both can see the boats and platforms just fine. The real advantage I think is the close in detection, finding crab pot buoys and such.
Old 09-09-2014, 06:15 PM
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I have the 4G paired to an NSS8 and an NSS12. It works great for me. I can see objects very clearly, even things as small as crab and lobster pot floats when on short range. On longer range it picks up targets very clearly on auto settings. The chart overlay is great.

It is my first radar so I don't have any comparisons to offer.

It turns out that I had to send the dome back to Simrad this week. The radar stopped working. The seal leaked and there was about a cup of water inside the case. It is apparently a known issue. Simrad has promised to send me a new unit as soon as they receive the old one.
Old 09-09-2014, 07:39 PM
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I have the Hds10 ten 2 and the 4G radar and they work very well together. Just got the overlay last year when I added an autopilot (Simrad AP24). You can see a lot of detail in close which is when it's most useful. Had a Furuno 1715 on my last boat and this blows that one away. It will pick up birds but you have to go manual, won't pick up kelp paddy's very well unless theres birds on them or someone tied a ballon to it (who would do that). Have used it making landfall at night down in Baja which is always a crapshoot and no surprises. Good luck it's worth it.
Old 09-23-2014, 01:19 PM
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Thanks Kid, Matt and Greenno, much appreciated. I will be getting a 4G for next season.
Old 09-23-2014, 01:36 PM
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No problem. You will not regret it, that's for sure.

If you need a heading sensor I have one for sale. a GS25. For the mounting on my boat the Point-1 worked out better. Both are the same.....just slightly different mounting options.
Old 09-23-2014, 01:51 PM
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4G without a doubt. The unit will pick out A bird IF you're within a reasonable close distance. Don't expect to see A bird at 7 or 8 miles, just not going to happen. Tremendous units and it's on my list for next year once this new boat is built.
Old 09-23-2014, 03:02 PM
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Not Lowrance but I was told I needed the heading sensor for the overlay to work on my Garmin.
The installer installed a non Garmin sensor (dunno why???) which didn't work with the system.
No heading sensor and the overlay works fine, just a fraction of a second lag while turning.
Old 09-23-2014, 03:03 PM
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Will these new 3-4G radars pick up kayaks?
Old 09-23-2014, 03:05 PM
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I would assume so.
Old 09-23-2014, 03:11 PM
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Originally Posted by Milehog View Post
Will these new 3-4G radars pick up kayaks?
I have 3G and can verify that kayaks are easily picked up. Same with channel markers and pilings. Crab/ lobster floats less so, unless it's flat calm.
Old 09-23-2014, 10:42 PM
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Kayaks yes, and most anything above the waterline if your paying attention to the details. within a reasonable distance. Believe me there is a night and day difference compared to a standard digital radar. I used to have a furuno on my other boats and this one makes a huge difference. good luck.
Old 09-24-2014, 05:15 AM
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I would also recommend the 4G. This unit if properly tuned will find birds, do a great job with weather, and also alert you to obstacles as mentioned. I very realty keep my radar in auto mode. As I have mentioned in other posts take some time with known targets when you are floating around and tune it up properly so you know what you are looking at. Look at other boats, buildings near shore, pilings, kayaks, and flocks of birds. This to me is the best way to learn how to use the unit.
Old 09-24-2014, 05:20 AM
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Originally Posted by InternationalMarineMike View Post
I would also recommend the 4G. This unit if properly tuned will find birds, do a great job with weather, and also alert you to obstacles as mentioned. I very realty keep my radar in auto mode. As I have mentioned in other posts take some time with known targets when you are floating around and tune it up properly so you know what you are looking at. Look at other boats, buildings near shore, pilings, kayaks, and flocks of birds. This to me is the best way to learn how to use the unit.
Cannot be said any better than what Mike stated and I will be picking one up in due time from Mike. On another note, NO ONE will beat International Marine pricing. To the OP, I would very strongly suggest you give Mike a jingle when you are ready. He WILL save you some coin
Old 09-24-2014, 08:13 AM
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The 3G and 4G radars have setting named Threshold which is deciding the weakest return to be drawn. The default setting is 30, when looking for small object under calm conditions I reduce the threshold, sometimes all the way down to 0.

I keep the Interference Rejection at Low and the Noise Reduction to Off as well to be able to spot small objects.

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