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  #1  
Old 10-08-2007
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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?
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  #2  
Old 10-08-2007
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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
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  #3  
Old 10-08-2007
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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
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Last edited by jerryrlitton; 10-08-2007 at 10:33 AM.
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  #4  
Old 10-08-2007
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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
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Old 10-08-2007
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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
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Last edited by jerryrlitton; 10-08-2007 at 01:18 PM.
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Old 10-08-2007
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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
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  #7  
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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
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Old 10-08-2007
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Anti-radiation missiles could solve that problem...
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StillóDON'T READ THAT POST AGAIN.
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Old 10-08-2007
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Nahh, they'd just use their flares as decoys.
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  #10  
Old 10-08-2007
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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
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Last edited by jerryrlitton; 10-08-2007 at 01:42 PM.
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