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Best Radome Mount for a Small CC

Old 09-04-2014, 11:07 AM
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Default Best Radome Mount for a Small CC

I am going to have a metal plate welded under my soft t-top and install a GMR 18XHD. I need a mount with a place for my anchor light.

Can anyone point me in the right direction. I need to give the footprint to my welder. Ideally it will have the appropriate tilt built in.

Thanks

Last edited by HeadHunt; 09-04-2014 at 11:22 AM.
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Old 09-05-2014, 06:17 AM
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Need some help please. Maybe Jim will jump in. I've been looking at the Seaview on BOE's website but I can't find the right one.

I've been looking at this one:

http://www.seaviewglobal.com/en/products/415

Does forward leaning mean I don't need a wedge? If I do need a wedge.... what degree?

Also the Seaview website says I need to purchase a "top plate" sold separately.... what is a top plate.

Next I will have to measure height since this will add at least a foot to my boat which I trailer.
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Old 09-05-2014, 06:42 AM
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This is the plate
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Old 09-05-2014, 06:46 AM
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Forward leaning means the mount is angled towards the bow of the boat, and does not affect the angle of the radar. The wedges are what change the radar angle and are typically 4-6 degrees. Which angle is appropriate depends on the running angle of your boat.
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Old 09-05-2014, 07:44 AM
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I have a Seaview. It works. However the finish flaking off within a few years was annoying
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Old 09-05-2014, 07:56 AM
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Thanks guys.... two more questions.

1. is Seaview the only game in town?

2. Do I have to use a raised mount like the Seaview one to keep from frying my GPS/Weather antennas.

I could weld my plate and mount the dome/wedge directly on top of my t-top fabric. Would that be bad?
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Old 09-05-2014, 08:35 AM
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Thanks Brian.... would I still need a top plate and a wedge?
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Old 09-05-2014, 08:50 AM
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Originally Posted by HeadHunt View Post

2. Do I have to use a raised mount like the Seaview one to keep from frying my GPS/Weather antennas.

I could weld my plate and mount the dome/wedge directly on top of my t-top fabric. Would that be bad?
It's usually best to use the raised mount so you get the best performance of the Radar. The dome sends out a 25 degree cone on the top and the bottom, for peak performance you would want both of the cones. Depending on the width of the top and how close the dome is mounted to the top will determine how much of the bottom cone you will retain. Look at page 8 & 9 of this manual to give you a better understanding. Around here I've noticed that more people are concerned with looks rather than actual performance so they will mount their dome directly to the top (w/o an elevated mount) even when the top is 9' wide....or maybe they're just clueless

http://www.simrad-yachting.com/Root/...3-003_EN_P.pdf
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Old 09-05-2014, 08:50 AM
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No top plate and a wedge would be dependant on your boat and how she sits in the water.
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Old 09-05-2014, 09:44 AM
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Thanks guys!!!
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Old 09-05-2014, 06:26 PM
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If you are going to use a radar mount, remember that your anchor light will have to be higher than your radome. (Some radar mounts come with built in stems for the anchor light.) You will have to make sure that the total height still makes your boat trailerable. I had a 28' Grady with a radome on a radar mount which was great until the year I moved the boat by trailer and had to remove the radome and mount. If you regularly trailer, just be mindful of total height.
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Old 09-06-2014, 06:09 AM
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Originally Posted by HeadHunt View Post
Next I will have to measure height since this will add at least a foot to my boat which I trailer.
Like Ed says, keep in mind the overall height including the light bar.
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Old 09-10-2014, 06:06 PM
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Originally Posted by BoemarineBrian View Post
No top plate and a wedge would be dependant on your boat and how she sits in the water.
Edson website says I need the plate. Is this correct?

Aft raked 30 degrees
•Powder coated aluminum
•Optional Light Arm
•Optional Antenna Mounting Wing
•Requires Vision Mounting Plate to install radar or sat dome antenna

http://www.boemarine.com/edson-visio...-6-aft-angled/

Thanks
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Old 11-01-2014, 07:48 AM
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Originally Posted by BoemarineBrian View Post
No top plate and a wedge would be dependant on your boat and how she sits in the water.
I'm a little confused here. Edson says a top plate is still required.

6" Vision Mount, aft angled
Item Number: 68010
•Aft raked 30 degrees
•Powder coated aluminum
•Optional Light Arm
•Optional Antenna Mounting Wing
Requires Vision Mounting Plate to install radar or sat dome antenna
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Old 11-01-2014, 11:06 AM
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Originally Posted by mahimahi99 View Post
It's usually best to use the raised mount so you get the best performance of the Radar. The dome sends out a 25 degree cone on the top and the bottom, for peak performance you would want both of the cones.

In bold is not correct: For the GMR 18XHD
The vertical beam width is 25 degrees total, 12.5 above, and 12.2 degrees below the horizontal plane. This is generally in the parameters of recreational radars (the Simrad is also a total of 25 degrees (there are some technical details, about cut off, but not important in this case).

You want to keep the GPS antennas out of the direct beam of the radar--that is more than 12.5 degrees below the beam. For that reason, I usually put the GPS on the roof, and raise the radar dome about 12"--but I have done some only 4" above a roof.. I use a 5 degree down wedge forward.
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Old 03-27-2015, 07:21 AM
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Bump for clarification!!

This unit claims to have a 4 degree tilt and claims to fit a Garmin without a top plate.

http://www.ebay.com/itm/SeaScan-Mari...e28ad8&vxp=mtr

I would rather purchase here than ebay.

I'm hoping a vendor can clarify this and come close to the price.

It seems like this Seascan eliminates the need to purchase a top plate and a wedge saving a few hundred bucks.

Thanks
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Old 03-27-2015, 09:56 AM
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Originally Posted by HeadHunt View Post
Bump for clarification!!

This unit claims to have a 4 degree tilt and claims to fit a Garmin without a top plate.

http://www.ebay.com/itm/SeaScan-Mari...e28ad8&vxp=mtr

I would rather purchase here than ebay.

I'm hoping a vendor can clarify this and come close to the price.

It seems like this Seascan eliminates the need to purchase a top plate and a wedge saving a few hundred bucks.

Thanks
I have one of these for my Garmin 18HD, fit perfectly. Great quality and service! Just know your down-angle so you can order the correct one.

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Best pic I have.. sorry

B
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Old 03-27-2015, 10:32 AM
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