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#1
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posted to rec.boats.electronics
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--Went to West Marine; the cheapest unit they sell was over $2k.
My application is a little weird but I don't need great range; a few hundred feet would be good enough. --Does anyone know of a real bargain basement source for radar? I'm willing to build from a kit, but I haven't found anything. Suggestions? -- "Steamboat Ed" Haas : A steaming pile of Hacking the Trailing Edge! : obscure information... www.nmpproducts.com ---Decks a-wash in a sea of words--- |
#2
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posted to rec.boats.electronics
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Ed,
If you are looking at marine radar, you may have problems from the get go. Many that I have been inside blank the first couple hundred yards. This may not be true of the miniature units, but that that is the reason for the blank area at the center of the screen. I was told that it was an artifact of the transmit/receive switch and the time it takes to shift the receiver gain back on as there is only one antenna. You might find something used that you can make do. Good Luck Matt Colie steamer wrote: --Went to West Marine; the cheapest unit they sell was over $2k. My application is a little weird but I don't need great range; a few hundred feet would be good enough. --Does anyone know of a real bargain basement source for radar? I'm willing to build from a kit, but I haven't found anything. Suggestions? |
#3
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posted to rec.boats.electronics
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In article ,
steamer wrote: --Went to West Marine; the cheapest unit they sell was over $2k. My application is a little weird but I don't need great range; a few hundred feet would be good enough. --Does anyone know of a real bargain basement source for radar? I'm willing to build from a kit, but I haven't found anything. Suggestions? You don't need a Marine Radar, which you can't use on Land anyway. You need something like a Speed Sensor, or a GunnPlexer. Maybe gmheng.com would have somethng that would fit your needs. My Little Brother builds some very nice gear using that technology.... Bruce in alaska -- add a 2 before @ |
#4
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posted to rec.boats.electronics
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Bruce in Alaska wrote:
You don't need a Marine Radar, which you can't use on Land anyway. You --Clueless me: why can't I use a marine radar on land? need something like a Speed Sensor, or a GunnPlexer. Maybe gmheng.com would have somethng that would fit your needs. My Little Brother builds some very nice gear using that technology.... --Will check it out; thanks. -- "Steamboat Ed" Haas : A steaming pile of Hacking the Trailing Edge! : obscure information... www.nmpproducts.com ---Decks a-wash in a sea of words--- |
#5
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posted to rec.boats.electronics
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![]() "steamer" wrote in message ... Bruce in Alaska wrote: You don't need a Marine Radar, which you can't use on Land anyway. You --Clueless me: why can't I use a marine radar on land? Im not sure here, But I'll take a guess; I had thought that operating marine radard on land is illegal. And i may be right or wrong on this second guess, but i was pretty sure its illegal to operate next to people, it. tied up at docks. From my basic and limited understanding, i think the people on the boat are 'in the eye of the storm' and dont get hit with any radar, but people around it get blasted. Shaun |
#6
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posted to rec.boats.electronics
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In article ,
"Shaun Van Poecke" wrote: "steamer" wrote in message ... Bruce in Alaska wrote: You don't need a Marine Radar, which you can't use on Land anyway. You --Clueless me: why can't I use a marine radar on land? Im not sure here, But I'll take a guess; I had thought that operating marine radard on land is illegal. And i may be right or wrong on this second guess, but i was pretty sure its illegal to operate next to people, it. tied up at docks. From my basic and limited understanding, i think the people on the boat are 'in the eye of the storm' and dont get hit with any radar, but people around it get blasted. Shaun Operating a Marine Radar on Land, WITHOUT, either a Maritime Support Station License, or an STA (Special Tempoary Authority) would be a viloation of 47CFR PART80. It is not, however, a violation to operate a Marine Radar while tied to a Dock, "Next to people" or not. There isn't a licenseable Marine Radar, that has a Power Density, at the Antenna Face, that would cause a significant problem for ANY Human from RF Radiation. Your much more likely to be HURT, falling off the ladder your standing on, because the Antenna rotated around and hit you in the head, than by any preceived notion of RF Radiation. Contrary to the much "Hyped" articles that appeared in a few "Sailing Rags" (Magazines) a few years back, written by "Hacks" who had absolutly NO understanding of the Technology they were expounding upon. Mow Military Radars are a "Horse of a Another Color", and many use completely different Technology, and CAN present Significant Damage to Humans and other Lifeforms. Some out to a couple of hundred yards from the Antenna Array. it is the old "Roasting a Turkey, in front of the FeedHorn" option, from days gone by. Bruce in alaska -- add a 2 before @ |
#7
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On 01 Sep 2007 17:57:37 GMT, steamer wrote:
You don't need a Marine Radar, which you can't use on Land anyway. You --Clueless me: why can't I use a marine radar on land? Against FCC regs. A guy stepped off the boat onto the dock with a marine band handheld. $8000 fine. The license was for the boat, not the individual radios separately. Hence unlicensed anywhere else. Casady |
#8
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posted to rec.boats.electronics
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--Thanks, gang; looks like a blind alley. I've since found out that
the kewl hack for seeing thru crap while driving cars seems to be FLIR. Turns out Cadillac offered this as a pricey extra, complete with a HUD, for a couple of model years, so I'll be haunting junkyards for a spell... -- "Steamboat Ed" Haas : A steaming pile of Hacking the Trailing Edge! : obscure information... www.nmpproducts.com ---Decks a-wash in a sea of words--- |
#9
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posted to rec.boats.electronics
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In article , steamer wrote:
--Thanks, gang; looks like a blind alley. I've since found out that the kewl hack for seeing thru crap while driving cars seems to be FLIR. Turns out Cadillac offered this as a pricey extra, complete with a HUD, for a couple of model years, so I'll be haunting junkyards for a spell... A hand held doppler radar will do nothing with a still object. greg |
#10
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posted to rec.boats.electronics
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Richard Casady wrote:
On 01 Sep 2007 17:57:37 GMT, steamer wrote: You don't need a Marine Radar, which you can't use on Land anyway. You --Clueless me: why can't I use a marine radar on land? Against FCC regs. A guy stepped off the boat onto the dock with a marine band handheld. $8000 fine. The license was for the boat, not the individual radios separately. Hence unlicensed anywhere else. Casady No flame intended, but that simply cannot be so. If possessing a marine band handheld on land were illegal, it would be impossible to sell them, or assuming that you own one, it would be impossible to remove it from a marine environment as most folks do with their boats in the winter. You certainly cannot transmit on marine frequencies on land, but I doubt that you cannot own one and remove it from your boat. Furthermore, FM radios don't even come with an application for an FCC license. I don't think licenses are required for FM. I don't know about the single sideband radios used at sea. They used to require licenses (I had one), but I don't know if they still do. -- Larry rapp at lmr dot com |
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