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Advantage of radar overlay

Old 03-04-2011, 08:50 AM
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Default Advantage of radar overlay

I am installing a new HDS7 with the Broadband radar and would like some comments on the advantage of overlaying the radar information onto the HDS chart.
Old 03-04-2011, 09:00 AM
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If you overlay it on a chart it gives you a real time reference of what's around compared to the chart from the manufacturer
Old 03-04-2011, 09:04 AM
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For people who are new to radar, it can be difficult to relate the radar echos to the coastal features, islands, etc. The overlay can help with that. Having said that, it also makes the screen very busy, so if you have two screens, it is usually better to dedicate one screen to the radar.
Old 03-04-2011, 09:14 AM
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Originally Posted by southatlantic View Post
For people who are new to radar, it can be difficult to relate the radar echos to the coastal features, islands, etc. The overlay can help with that. Having said that, it also makes the screen very busy, so if you have two screens, it is usually better to dedicate one screen to the radar.
Actually the best way to do it (if you have two screens), is with a split screen - one half of the display with just the radar and the second half with the overaly up; then put your navigation chart and fishfinder up in the second screen.
Old 03-04-2011, 09:30 AM
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I have Lowrance 113 CHD with radar overlay its great and for running at night and a must for me . I do turn off my trails way points etc... as to keep the screen clean
I travel at night quite a bit and consider it a must . I do have another 113 I can use on map screen and leave trails on etc if needed but not so much any more unless in uncharted waters ,

I have it on when I am running on step during the day as to make sure its set and working proper and keep me savvy with the buttons and settings etc ,
Seeing a buoy , land and boat echos during the day when its safe is a great way to get good at your radar and trust it in fog or dark
fishing or in a harbor I turn it off ,

Once your familiar with it and keep your screen clean of multiple trails etc . I would use it on my 5 inch screen !!
I use the KVH heading sensor for mine !!

good luck
Old 03-04-2011, 10:46 AM
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radar is near instant, whereas the plotter tells you what you have just done. When I need radar, i use split screens. When radar isnt necessary, i use overlay just to keep an eye on what is around me.
Old 03-04-2011, 12:07 PM
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Great way to find out if another boat is stopped or moving from the distance as well. if someone just hooked up a fish and they stop, the overlay on radar will show it right away...
Old 03-04-2011, 02:01 PM
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Originally Posted by LI32 View Post
Actually the best way to do it (if you have two screens), is with a split screen - one half of the display with just the radar and the second half with the overaly up; then put your navigation chart and fishfinder up in the second screen.
Like this:

Old 03-04-2011, 02:31 PM
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Default radar overlay

Thanks to all the good comments and especially the photo. Looks like I will now have to purchase a heading sensor.
Old 03-04-2011, 02:52 PM
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sniping bottom numbers
Old 03-05-2011, 09:32 AM
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I set mine up like birdman shows. I also ran with it set up like that during the day the first couple months I had my system to familiarize myself with what it was showing versus what i was seeing. If its a new system, turning it on for the first time at night was a little unsettling. Like a good hunting dog, we developed a mutual trust with each other after running it a lot during the day. lol
Old 03-05-2011, 03:08 PM
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Hey Birdman does that fan keep your windshield clean, where did you get it.
Old 03-05-2011, 03:14 PM
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Allows you to corliate radar targets to known objects. bouy or ship always a good thing but each to their own
Old 03-05-2011, 03:24 PM
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I like the radar overlay feature because if my charts show a buoy and my overlayed radar shows a return right where the buoy is then I'm confident that there is a buoy exactly right there (and not a ship that is moving). If I see a return and no structure then it's likely another ship and I have to be concerned about it's direction of travel.

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