Odd Radar Mounting
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markpierce
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I would refuse a boat where the radar radiates my body or brain! One reason for my mast-mounted radar was to keep the radiation far away. ... Eric, hope they don't have the radar on while in the marina next to you. ... Curious as to the range of this "low range" unit.
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rochepoint
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Looks to be a 3G broadband radar which has zero radiation hazard according to the manufacturer........Lowrance Broadband 3G Radar - LOWRANCE | Marine Electronics
LarryM
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Mark,
That Lowrance unit is a "Broadband" radar with extremely low emissions. It is the safest of all radars, and can be mounted anywhere. Broadband radar has fewer emissions than a mobile phone.
As for range, it will be diminished somewhat, but assuming it is mounted 5 or 6 feet above the water, the radar horizon will be about 3 miles. You can demonstrate that here to see there is actually not as much difference as you might think.
markpierce
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So the seller claims.
LarryM
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Mark,
This is an 'apples to oranges' comparison of completely different technology.
A 3G Broadband FMCW (Frequency Modulated Continuous Wave) radar radiates just 0.165 Watts Calculated Average Power. That's about 1/10 the 1.6 watts maximum allowed in the US.
In contrast, a small, Garmin GMR18HD 4KW radar radiates 2.235 Watts Calculated Average Power, about 13.5 times that of the 3G Broadband radar.
The Garmin's average effect is only 2.235 Watts, and that's only if you hug the radome, or about 50% more than your mobile phone (1.6 watts maximum in the US). The radiation is not cumulative. It is microwave radiation, same as from your microwave oven and quite similar to that of your mobile phone, although slightly different frequency. You will pick up more radiation speaking in your mobile phone, sitting too close to an old TV, standing within 3 feet of the microwave or spending a day in the sun than you will from standing next to a 4 kW radar.
It's just not the same thing.
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psneeld
Guru
Even the old style radars could be programmed with dead zones to protect the cockpit.
Though more than a foot or so away from a 2kw units wouldn't inflict much radiation at all.
The ne broadband are similar to cel, phone output.
Though more than a foot or so away from a 2kw units wouldn't inflict much radiation at all.
The ne broadband are similar to cel, phone output.
markpierce
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I don't exceed cell-phone use of 40 minutes a month!
Microwave ovens were the result of radars melting a scientist's chocolate bars in his pocket.
So, I'm microwave shy!
Microwave ovens were the result of radars melting a scientist's chocolate bars in his pocket.
So, I'm microwave shy!
OP
OP
Nomad Willy
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This is kinda funny.
I hardly gave radiation a thought. I just thought it was awful funny look'in (emphasis on awful) and running the boat trying to see around that radar bucket strikes me as ..... don't want to use any of the words that come to mind. But basically it was just odd. Never would'a thought anyone would do that.
Edit ..
Thought just occurred to me that at speed both the radar and anchor could be above the horizon. As to the anchor the fluke is a lot thinner than the roll bar.
I hardly gave radiation a thought. I just thought it was awful funny look'in (emphasis on awful) and running the boat trying to see around that radar bucket strikes me as ..... don't want to use any of the words that come to mind. But basically it was just odd. Never would'a thought anyone would do that.
Edit ..
Thought just occurred to me that at speed both the radar and anchor could be above the horizon. As to the anchor the fluke is a lot thinner than the roll bar.
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caltexflanc
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The radiation (or lack thereof) issue aside, it seems like someone's mission was to mount the radar in the place it would be least effective, get in the way the most, get drenched in salt water, inhibit visibility from the helm, and as a result make the owner look just plain dumb. Will be interesting to see how long it stays there.
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I can just see that anchor ripping free underway in a blow and lodging itself into that beautiful, glossy radome.
If I had to mount an anchor upside down to get it to fit onboard, I'd find another anchor...or a bigger boat.
When that boat's on plane, that radar antenna angle must be way off. I'd be surprised if he could see much at all.
I bet that mount fails first.
If I had to mount an anchor upside down to get it to fit onboard, I'd find another anchor...or a bigger boat.
When that boat's on plane, that radar antenna angle must be way off. I'd be surprised if he could see much at all.
I bet that mount fails first.
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The low antenna mounting has one advantage and that is it will "see" stuff in the water a lot closer to the boat than the traditional high mount on a mast or arch. Obviously this will only happen if the antenna is aligned with the horizon when the boat is in it's normal cruising trim.
It's the only advantage of our antenna mount which is in the old fashioned position of the flying bridge face. This is common on older boats like ours because they tend to have solid wood masts which made running the heavy, thick radar antenna cables of that era from the antenna to the display unit up forward a challenge.
In our waters with debris and crab pot floats and such the ability to see things right up to the boat can be an advantage when running in poor visibility like fog. It's not enough of an advantage for me to ever recommend a flying bridge face mount over a mast or arch mount, however.
And.... with a conventional radar at least, this bow mount will greatly limit target reflection reception from aft of the boat. I don't know if broadband has this limitation.
Be interesting to know the reasoning behind this particular fellow's choice of antenna mounting.......
It's the only advantage of our antenna mount which is in the old fashioned position of the flying bridge face. This is common on older boats like ours because they tend to have solid wood masts which made running the heavy, thick radar antenna cables of that era from the antenna to the display unit up forward a challenge.
In our waters with debris and crab pot floats and such the ability to see things right up to the boat can be an advantage when running in poor visibility like fog. It's not enough of an advantage for me to ever recommend a flying bridge face mount over a mast or arch mount, however.
And.... with a conventional radar at least, this bow mount will greatly limit target reflection reception from aft of the boat. I don't know if broadband has this limitation.
Be interesting to know the reasoning behind this particular fellow's choice of antenna mounting.......
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Sailor of Fortune
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Ghetto grade install.
hollywood8118
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I don't exceed cell-phone use of 40 minutes a month!
Microwave ovens were the result of radars melting a scientist's chocolate bars in his pocket.
So, I'm microwave shy!
Get one of those aluminum foil hats and all will be good..also keep the alien's from reading your thoughts!
Hollywood
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ksanders
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SCOTTEDAVIS
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Durability test on the ability of the electronics and drive mechanize to survive extreme pounding. The worse place on a boat for mounting fragile stuff.
The safety of the unit is fine as has been stated.
Looks stupid.
The safety of the unit is fine as has been stated.
Looks stupid.
ancora
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Sea Ray or Bayliner?
healhustler
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caltexflanc
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The satellite dome is plastic and about the top third empty. We had a similar juxtaposition on the Hatteras (see avatar) without issue. But yeah, putting a spacer on the radar in the picture looks like it would have been a good idea from that angle, given the AC.
High Wire
Guru
Someone went to a lot of trouble to make that mount. There does seem to be a bizarre logic applied, like the owner said, go to West Marine and build me a radar mount today with whatever they have in stock.. The down-angle is adjustable with those antenna ratchet mounts. Curious to know why they shaped the starboard base the way they did!!!
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