Go Back  The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > Marine Electronics Forum
Reload this Page >

radar placement and how far from the compass does the displays need to be?

Notices
Marine Electronics Forum

radar placement and how far from the compass does the displays need to be?

Old 03-25-2003, 07:40 PM
  #1  
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Mar 2003
Location: THE LOBSTER CAPITAL
Posts: 459
Likes: 0
Received 1 Like on 1 Post
Default radar placement and how far from the compass does the displays need to be?

i will be installing my new radar, gps antenna and vhf antenna on top of my t-top.

my first question is...how much interferance will the gps and vhf antenna create for the radar scanner?

second question......in my gps and sounder manuals it says to place my displays at-least 26 inches from the compass. well thats not possible.the sounder will be about 10 inches away and the sounder about 18 inches. is this too close? what problems will it cause? or is that just a disclaimer from the manufacturer?


thank

capt. jim
rippin lips charters

The early bird gets the worm but the second mouse gets the cheese
maineguides is offline  
Old 03-26-2003, 04:17 AM
  #2  
Senior MemberCaptains Club Member
 
Join Date: Mar 2002
Location: LINDENHURST, NY
Posts: 1,798
Likes: 0
Received 9 Likes on 9 Posts
Default radar placement and how far from the compass does the displays need to be?

Your GPS antenna should be installed so that it is out of the 'beam' of your radar.

Above or below it does not really matter, but it should NOT be in the direct path. Either install your radar on a tower or mount your GPS antenna on a 1-2 foot extension mast.

Your VHF antenna should not be a problem at all. Just make sure that it is at least 3 feet from your VHF radio.

There was a discussion on this about a month ago if you search the archives. Some of the posts indicate that there is no interference, others, myself included, have experienced some problems. However, it is safe to assume that leaving the GPS antenna in the beam decreases its service life.

Most electronics have some effect on your compass. It is hard to say that 26 inches is set in stone.

Best thing is to temporarily hook up your components to a power source. Arrange or set them down in the spots that you want to install them, and then turn them on. Taking ONE unit at a time, move it around the general area of the console and watch your compass. If there is no movement, it is safe to assume that it has no impact on the compass reading. It is important to move the unit completely away from the compass while it is on. This way you will see how far a potential magnetic field reaches! Do this for all the units individually, and then power them all up when you have what you think is a a good location for them.

Hope this helps!

"A HALF truth is a WHOLE lie!"
Big E is offline  
Old 03-26-2003, 04:27 AM
  #3  
Senior MemberCaptains Club Member
 
Join Date: Dec 2002
Location: Orlando
Posts: 3,997
Likes: 0
Received 0 Likes on 0 Posts
Default radar placement and how far from the compass does the displays need to be?

I get no compass interferance from the fishfinder (right) or the gps (left).

Sea_Dad is offline  
Old 03-26-2003, 06:04 AM
  #4  
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: May 2002
Location: Skaneateles, New York
Posts: 5,483
Likes: 0
Received 2 Likes on 2 Posts
Default radar placement and how far from the compass does the displays need to be?

I have experienced NO interference at all. I do think it important to have the GPS right in front of you, as well as the VHF and Radar. www.scanstrut.com for radar mount and you can buy at www.consumersmarine.com Take you time on the installation, this is the time to 'get it right'. Good luck. Also some people will put a 4 degree wedge under radar so it's parallel to the water when running. Have fun.

Boston Whaler, "MUMBLER", 24' Outrage (1996), twin 175 HP Evinrude Ocean Pros. Snowball, the cat...
Mumblerone is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.