Car Radar Detector - 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 > Skills and Seamanship > Seamanship & Navigation
 Not a Member? 

Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


Reply
 
LinkBack Thread Tools
  #1  
Old 05-14-2014
Member
 
Join Date: Apr 2010
Location: Antelope, CA, USA
Posts: 62
Thanks: 10
Thanked 3 Times in 3 Posts
Rep Power: 5
ravinracin is on a distinguished road
Car Radar Detector

I was just wondering if a car radar detector would alert you to a ship near by that had his radar turned on. I have used one for years while driving and they seem to work great. The best use I have had is while driving in Nebraska, completely flat land with every little town having a radar gun toting cop out hunting. It seems like with all the different bands a unit searches that it would work at sea. Just wondering, another safety tool. Very inexpensive also.
Reply With Quote Share with Facebook
  #2  
Old 05-14-2014
jimgo's Avatar
Asleep at the wheel
 
Join Date: Sep 2011
Location: Pennsylvania
Posts: 2,916
Thanks: 71
Thanked 108 Times in 106 Posts
Rep Power: 3
jimgo is on a distinguished road
Re: Car Radar Detector

If there was only one boat around, maybe (I haven't looked into whether the ship radars use X, K, or Ka bands; if not, then it won't work). But if there was more than one boat, you'd be getting pings all the time. I imagine it would get a bit annoying. Now, if you're in the middle of the ocean and worried about getting run over, then it makes sense (assuming the detector will actually pick up the ship's radar). But if you're in the Chesapeake Bay or Delaware River, for example, it would probably just drive you nuts.
__________________
- Jim
Home: Western Philly 'burbs
1980 Allmand 31
1975 Albacore 15


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 05-14-2014
Barquito's Avatar
Barquito
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 1,937
Thanks: 0
Thanked 14 Times in 14 Posts
Rep Power: 7
Barquito is on a distinguished road
Re: Car Radar Detector

Here is what fellow SailNetter, Jim Sexton, wrote a few years ago:

Quote:
Another radar warning device is one that detects a radar pulse and sets off an alarm. Unfortunately this type of radar detector does not commercially exist in the marine market. A land based X-band radar detector used to detect police radars is not very expensive and on a vessel at sea would alert you to the presence of another operating radar in time to fire up your radar, search for a return, and determine if there is any danger of a collision. While not very useful in a harbor near land, it should provide some warning at sea. Obviously this type of radar detector would not be of any value to you if the other vessel was operating in the S-band, had its radar in standby mode, or off altogether. The land-based police radar detectors typically operate in the X, K , Ka, and Laser bands but not at all in the S-band. The S-band radar is in the 2 to 4 GHz range (2000 to 4000 MHz) while the X-band is in the 8 to 12 GHz range (8000 to 12000 MHz). To the best of my knowledge, no one makes a radar detector that operates in the S-band.
__________________
Bristol 27
Cirque
Reply With Quote Share with Facebook
  #4  
Old 05-14-2014
MedSailor's Avatar
Closet Powerboater
 
Join Date: Mar 2008
Location: Anacortes PNW
Posts: 2,471
Thanks: 76
Thanked 52 Times in 44 Posts
Rep Power: 7
MedSailor is on a distinguished road
Re: Car Radar Detector

What a great idea! Police radars are X band, and so are our small marine units. Ships use both S and X band with S band being for longer ranges and X band for short ranges. You'd have to ask someone who is one one of these ships to know if they use just S band radar at sea or if they use both S and X at the same time at sea.

MedSailor
__________________

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


I have a sauna on my boat, therefore I win.
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 05-14-2014
Senior Member
 
Join Date: Jul 2012
Posts: 294
Thanks: 7
Thanked 19 Times in 18 Posts
Rep Power: 3
Shinook is on a distinguished road
Re: Car Radar Detector

There are marine units available that have alarms and some sort of display capability.

They were discussed in the book on Black Feathers, the Cal 20 that finished the solo transpac race a few years ago. I remember them being discussed at length and compared to AIS, IIRC, he said that he got pings on the radar detector long before getting them on his AIS display.

I think it's a great idea, but I am curious why it never caught on. I had to really look to find information on the marine units and have yet to see a boat with one installed (aside from Black Feathers).

EDIT:

I believe this was it:

http://www.sea-me.co.uk/about.html

I was wrong, it doesn't have display capability but it does have an alarm that goes off when you get hit with radar.

Last edited by Shinook; 05-14-2014 at 10:01 PM.
Reply With Quote Share with Facebook
  #6  
Old 05-14-2014
bobmcgov's Avatar
baDumbumbum
 
Join Date: Jul 2007
Location: Windy Wyoming
Posts: 1,037
Thanks: 0
Thanked 25 Times in 24 Posts
Rep Power: 8
bobmcgov will become famous soon enough
Re: Car Radar Detector

The two passive detectors/active return marine units are from Sea-Me (as Shinook linked to) and EchoMax. Both use very little power in detect mode; when they return a signal (highly amplified), your vessel appears roughly the size of the QE2 on the screen of whomever pinged you. This is good, much better than passive reflectors which lose signal per the inverse square rule both incoming and outgoing, and which return signal may not show up on a radar set with the gain turned down to reduce false positives.

Both EchoMax and Sea-Me sell single band or dual band units. The reason they have not caught on is a price tag between $800 and $1000 USD. It seems likely cheap & ubiquitous AIS will, in the near future, consign this very nifty product to the dustbin, next to Loran C.
__________________
Buccaneer18, Grainnia
SJ21, Diarmuid
Albin Ballad 30, Fionn
Reply With Quote Share with Facebook
  #7  
Old 05-15-2014
Barquito's Avatar
Barquito
 
Join Date: Dec 2007
Location: Madison, WI
Posts: 1,937
Thanks: 0
Thanked 14 Times in 14 Posts
Rep Power: 7
Barquito is on a distinguished road
Re: Car Radar Detector

So, back the the OP question, it looks like X-band detection might be reasonable if staying near the shore. That is, if what they say in the add for the Sea-Me unit applies to US waters. I would be interested to know if anyone knows what radar bands are used in the US waters (and Great Lakes).
__________________
Bristol 27
Cirque
Reply With Quote Share with Facebook
  #8  
Old 05-15-2014
erps's Avatar
the pointy end is the bow
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,149
Thanks: 2
Thanked 24 Times in 24 Posts
Rep Power: 10
erps will become famous soon enough erps will become famous soon enough
Re: Car Radar Detector

I'm glad you asked this question, because it's something I've been thinking about as well. We knew a guy who cruised in the 80's and used a car RADAR detector during off shore passages and he said it worked really well. But that was in the 80's. A person could maybe borrow one and drive down to a shore with commercial traffic and see if it beeps?
__________________
Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


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


Boating for over 25 years, some of them successfully.
Reply With Quote Share with Facebook
  #9  
Old 05-15-2014
DRFerron's Avatar
A mod and her dragon
 
Join Date: Nov 2005
Location: SE Pennsylvania
Posts: 3,826
Thanks: 47
Thanked 128 Times in 118 Posts
Rep Power: 10
DRFerron is on a distinguished road
Re: Car Radar Detector

I last had a car radar detector back when I was a teenager, a zillion years ago. I have no idea what changes they've undergone since then but if I'm reading this thread correctly, all you want is the ping? You don't want a display to tell you where the object is located, whether you're on a collision course, or anything else a boat's radar screen can tell you?

I don't have radar, I'm just trying to think through the argument for using the car radar instead.
__________________
Donna


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Catalina 30 TRFK

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

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

All things that are, are equally removed from being nothing. John Donne
Reply With Quote Share with Facebook
  #10  
Old 05-15-2014
jimgo's Avatar
Asleep at the wheel
 
Join Date: Sep 2011
Location: Pennsylvania
Posts: 2,916
Thanks: 71
Thanked 108 Times in 106 Posts
Rep Power: 3
jimgo is on a distinguished road
Re: Car Radar Detector

A few references that might be of interest:

Radar - Wikipedia, the free encyclopedia


NG Introduces Dual Channel Navigation Radar System | Sperry Marine
__________________
- Jim
Home: Western Philly 'burbs
1980 Allmand 31
1975 Albacore 15


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
Reply

Tags
radar , radar detector , safety at sea


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
CO detector fodao General Discussion (sailing related) 8 05-12-2014 01:46 PM
Would a radar detector work? chrisncate General Discussion (sailing related) 21 06-27-2013 09:53 PM
Radar Detector wind_magic Gear & Maintenance 4 07-02-2007 07:15 AM


All times are GMT -4. The time now is 03:13 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

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.