Radar Use - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest Forums > General Discussion (sailing related)
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 10-08-2007
kiprichard's Avatar
Member
 
Join Date: Aug 2007
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
kiprichard is on a distinguished road
Radar Use

Two Questions:
- If a vessil is equiped with radar must that radar be turned on at times when underway even if visability is not restricted? The col regs state " Proper use shall be made of radar equipment if fitted and operational ". What does " Proper use " mean?
- If your radar is on does it " paint " a bigger picture on the radar of another vessel even if you have a radar reflector?
Reply With Quote Share with Facebook
  #2  
Old 10-08-2007
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Mobile Liveaboards
Posts: 9,894
Thanks: 3
Thanked 94 Times in 49 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
I will answer these questions with my opinions:

1) I guess, in theory, you are supposed to run it all the time (outside the marina though, please). However, we never do. It is a power hog. In nice weather conditions, we either do not turn it on or set it on a 5 min scan delay. In questionable weather, full scan - always. In my opinion, that reg is probably intended for commercial use.

2) To the best of my knowledge, and someone correct me if I am wrong, the radar does not make you get picked up better with ships. HOWEVER, many ships (and yachts I have seen also) have a radar receiver which tracks the radar bounce and will plot it. In other words, there is a instrument you can buy that shows the radar of another ship and plots it on your receiver. I do not have this. I saw it on a V50 once. I would make an assumption that many commerical vessels have this... though few private yachts do.

- CD
__________________
Sailnet Adminstrator & Moderator
Catalina 400 Technical Editor

2004 Catalina 400, Sea Mist IV (our boat, F/T Mobile Live Aboards in S FL and Keys primarily)
1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #3  
Old 10-08-2007
jerryrlitton's Avatar
Oathkeepers member
 
Join Date: Oct 2002
Location: Andaman Sea
Posts: 1,208
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 12
jerryrlitton will become famous soon enough
Send a message via ICQ to jerryrlitton Send a message via MSN to jerryrlitton Send a message via Yahoo to jerryrlitton Send a message via Skype™ to jerryrlitton
I cannot help with the 1st question but the second one I can. No, your radar will not help paint a larger picture regardless if it is on or off. The only way it would is if you were equipped with a transponder and it was set to reply to the others vessels interrogation signals. So in the mean time all you can do is present a larger target cross section to the vessels radar (be broad side) which is impractical and get the best radar reflector you can. Hope that helps a bit.

CD I just edited this post to cover yours and it does make sense. We do have receivers in our aircraft that will pick up other transponder signals and will plot them for us to increase situational awareness and I can't see why there is not a reciever out there that will pick up and plot a bearing to another radar transmitter but distance information may be lacking.
Jerry
__________________
If you always put limit on everything you do, physical or anything else, it will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.

Bruce Lee



LET'S GET SERIOUS ABOUT ENFORCING OUR PRESENT LAWS NOW






To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by jerryrlitton; 10-08-2007 at 10:33 AM.
Reply With Quote Share with Facebook
  #4  
Old 10-08-2007
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Mobile Liveaboards
Posts: 9,894
Thanks: 3
Thanked 94 Times in 49 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
Hey Jerry,

Yes, as I recall, it paints a direction and strength. It does not paint their location. That was not clear on my post... at least from the one I saw. Maybe I can find a link to one...

- CD
__________________
Sailnet Adminstrator & Moderator
Catalina 400 Technical Editor

2004 Catalina 400, Sea Mist IV (our boat, F/T Mobile Live Aboards in S FL and Keys primarily)
1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #5  
Old 10-08-2007
jerryrlitton's Avatar
Oathkeepers member
 
Join Date: Oct 2002
Location: Andaman Sea
Posts: 1,208
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 12
jerryrlitton will become famous soon enough
Send a message via ICQ to jerryrlitton Send a message via MSN to jerryrlitton Send a message via Yahoo to jerryrlitton Send a message via Skype™ to jerryrlitton
I think you are right CD. The only 2 way (3 if you count triangulation) is either to range it with radar (timing) or a transponder type operation (system communication). Anything else would just give relative signal strength and a bearing which is a lot better than nothing. Too bad the "Fight club dude" was not here to help with this one. He knows more about radar than anyone I know.

Jerry
__________________
If you always put limit on everything you do, physical or anything else, it will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.

Bruce Lee



LET'S GET SERIOUS ABOUT ENFORCING OUR PRESENT LAWS NOW






To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by jerryrlitton; 10-08-2007 at 01:18 PM.
Reply With Quote Share with Facebook
  #6  
Old 10-08-2007
Cruisingdad's Avatar
Best Looking MALE Mod
 
Join Date: Jul 2006
Location: Mobile Liveaboards
Posts: 9,894
Thanks: 3
Thanked 94 Times in 49 Posts
Rep Power: 10
Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough Cruisingdad is a jewel in the rough
AIS may take the place of a lot of that, but many commercail rigs still do not have one. I forget what the tonnage req is. Still, AIS appears a cheap and easy way to keep an eye on what is around you. It was a good idea.

- CD
__________________
Sailnet Adminstrator & Moderator
Catalina 400 Technical Editor

2004 Catalina 400, Sea Mist IV (our boat, F/T Mobile Live Aboards in S FL and Keys primarily)
1987 Tayana Vancouver 42, Credendo Vides, (Mom and Pops boat, F/T Mobile Live Aboards in Puget Sound)

My Website:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow My Blog at:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Follow me on Facebook:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #7  
Old 10-08-2007
Senior Member
 
Join Date: Jun 2007
Posts: 2,710
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
SEMIJim will become famous soon enough SEMIJim will become famous soon enough
I don't know what the regs say (I don't have radar, so I haven't paid them much mind in this respect), but I will tell you this: There's nothing that looks more stupid and inconsiderate than watching some idiot powerboater runnin' down a 100' wide canal on a clear day, paintin' everything and everybody in sight with microwave energy for no good purpose, just because he's too stupid to turn it off of because he thinks it makes him look cool. These jerks ougtta be ticketed. If it isn't a ticket-able offense, it should be.

Jim
Reply With Quote Share with Facebook
  #8  
Old 10-08-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 8 Times in 8 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Anti-radiation missiles could solve that problem...
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #9  
Old 10-08-2007
Bardo's Avatar
Just another stop...
 
Join Date: Jun 2007
Location: Port Republic, MD
Posts: 483
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
Bardo is on a distinguished road
Nahh, they'd just use their flares as decoys.
Reply With Quote Share with Facebook
  #10  
Old 10-08-2007
jerryrlitton's Avatar
Oathkeepers member
 
Join Date: Oct 2002
Location: Andaman Sea
Posts: 1,208
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 12
jerryrlitton will become famous soon enough
Send a message via ICQ to jerryrlitton Send a message via MSN to jerryrlitton Send a message via Yahoo to jerryrlitton Send a message via Skype™ to jerryrlitton
Jim,
Actually the radar energy is not strong enough to pop corn or unless you are VERY close it really is not a problem. But having said that attitude is everything and I do know what you are talking about and there attitude sucks. Especially when you talk about them hauling butt down a canal.

Jerry
__________________
If you always put limit on everything you do, physical or anything else, it will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.

Bruce Lee



LET'S GET SERIOUS ABOUT ENFORCING OUR PRESENT LAWS NOW






To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by jerryrlitton; 10-08-2007 at 01:42 PM.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Navigating with Radar Jim Sexton Seamanship Articles 0 03-29-2002 07:00 PM
Radar Basics Jim Sexton Seamanship Articles 0 11-14-1999 07:00 PM
Radar Basics Jim Sexton Gear and Maintenance Articles 0 11-14-1999 07:00 PM
Radar Basics Jim Sexton Cruising Articles 0 11-14-1999 07:00 PM
Radar Basics Jim Sexton Her Sailnet Articles 0 11-14-1999 07:00 PM


All times are GMT -4. The time now is 12:51 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012