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RADAR MOUNTING

Old 07-11-2005, 05:32 PM
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Default RADAR MOUNTING

Been watching some recent threads regarding choices for small boat radars....the subject of mounting angles was discussed lightly but deserves more as it is the single most important part of putting radar on your boat. JRC, Furuno, Ray or any other unit will provide dissapointing results if not mounted correctly.

The first thing you must decide is; At what speed will I typically be running when the radar would be most important to me. In reduced visability I believe many boaters will run slower than their normal cruising speed. The point is that you need to set the "running angle" of the radar for the running attitude of the boat when you most want close in performance. In reduced visability seeing out 24 miles is of less importance than seeing as close to the boat as possible. If you are going to run off plane but with good steerage, the attitude of some small boats will be pushing the beam way to high and you will be "blind" inside of a mile or so.

It's all about the boat and it's running angle. Some big sports run pretty steep angles at cruise speed while many smaller boats run near flat.

Bolting on a new radome is easy, figuring out the right angle is the challenge.
Old 07-11-2005, 09:06 PM
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Default Re: RADAR MOUNTING

sleeper

do you have a radar on your boat? if so if you do not mind me asking what model did you go with and how did you compensate for the angle I am seriously thinking of putting one on my boat and have also been following the radar threads. I am thinking of the JRC 1800 any thoughts?
thanks for any info
Old 07-11-2005, 10:43 PM
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Default Re: RADAR MOUNTING

Sleeper has got it right. At first I had a white enamel adjustable box that looked hideous. I then tried some starboard to get it off the t-top but also bought a bunch of 1/4" thick nylon washers and raised the back of the radome and then used smaller washers in the front. I started with a signficant slant toward the front and used a ofshore bouy about 100-500 yards away to montor which looked the best. Finally decided that the 3 inch rise was good enuf to see all when running toward it.

It's all in the crusing angle....

http://www.thehulltruth.com/forums/t...67976&posts=11
Old 07-12-2005, 11:34 AM
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Default Re: RADAR MOUNTING

This should be the cure all.

"The Patrick" - Self Leveling Radar Mount

Wandering around the Miami boat show, I wondered aloud to Wilson why the various marine radar manufacturers don't incorporate some sort of mechanism to adjust the angle of the mount that the radar sits on. A few minutes later we stumbled upon a small booth manned by the soft spoken Capt. Pat Caudle out of Post Isabel, Texas. It seems Capt. Pat wondered the same thing a year or so ago when he developed The Patrick Level, a remotely controlled self leveling radar mount.

The Patrick Level



The Patrick Level allows users to adjust the antenna angle regardless of the running angle of your boat by the simple use of an up/down switch. Since radar is by line of sight, this will maximize the aquisition of targets that radar is designed to detect. The device consists of a standard mount modified with a hinge, which is raised or lowered using a Lenco trim tab actuator. The Patrick Level gets my vote for innovation of the year!
Old 07-12-2005, 01:58 PM
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Default Re: RADAR MOUNTING

warthog5 - 7/12/2005 12:34 PMThe device consists of a standard mount modified with a hinge, which is raised or lowered using a Lenco trim tab actuator. The Patrick Level gets my vote for innovation of the year!
Great Warthog, now you are going to start a Lenco vs. Bennett debate

That is one cool looking mount. They have had the same thing for sailboats for years. A little switch and a Lenco tab to tilt them left or right, forward or back in this case. Nice find!
Old 07-15-2005, 04:21 PM
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Default Re: RADAR MOUNTING

Lee, no radar on the Fountain (yet). I would probably go with the JRC 1800CP but the small Furuno's also interest me.

My experience running this boat so far is that they run pretty flat. Whether I am off plane in bad vis or running fast, the running angle of a 25 Fountain is very flat. Now if you want to make 6-9 knots in bad visibility you need to consider where the radar will be looking (up at a pretty good angle). I would consider this mount: http://store.wmjmarine.com/-c15807.html which can be adjusted 10 degrees quickly. I would mount it for best resolution at planing speed and then have the ability to lower the angle up to 10 degress if needed for a low visibility situation and steeper running angle.
Old 07-15-2005, 06:20 PM
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Default RE: RADAR MOUNTING

I asked about mounting angle here on the board about a year ago before I installed my unit.

Based upon the replies, I went with a foreward angle of about 4 degrees which has worked out fine for my installation. As suggested above, alot will depend upon your boat's relative angle under way when you'd be using your radar. Also remember the radar beam is fairly wide in height range, so it is not entirely critical to have it level.

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