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Discussion Starter · #1 ·
I have a 28 ft W/A fish the chesapeake bay and atlantic 60 to 70 mi out. I have never used radar but have read as much info as I can. I am thinking about buying furuno 1734 c/nt 4KW 36mi. I could buy the 1724 2KW 24 mi for 650.00 less.
must go with the dome for height restrictions, I trailer the boat.
1. would you go with furuno
2. will I get my monies worth out of the 4KW
Any help and opinions would be greatly appreciated!!!!! Thanks Keith
 

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Either will work for navigation and safety with the advantage going to the 4kw unit. IF money were a problem, the 2kw is certainly better than no radar at all. As for trailering heught, the open array isn't any taller than the radome?

Lance
 

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After nearly getting cut in half by an idiot in the fog the other day I bought a Raytheon 4KW Pathfinder unit from Marine Electronics in Hartfield. My boat is a 24' Wellcraft cuddy. I picked up the Radar used for a very good price & it came with a warranty, all manuals, new cables & the works. Right now a lot of the boys with more money then me are trading up & you can get a very good deal on slightly used stuff.

I'm sure the Furuno is a very good unit but the similar Raytheon units have a larger dome radious & shorter dome height which should translate to a clearer pictue. My 4KW unit is 24" in diam. with a height of 8.9". The weight of the scanner (dome) is 16.3 lbs which is similar to the Furuno, which, by the way, he had several of as well.

If you are a hard core fisherman, the real advantage to the 4KW units is the additional clarity. ME guaranteed I would see individual birds with the one I bought on a clear day, small flocks of birds on a rainy day. Even though the unit has a 48 mile range, due to line of sight limitations on a small boat like yours & mine realistic range is under 15 miles.

If you want a good deal on quality equipment (new or used) give 'em a call. I went there to buy a new 2KW unit which was $14& change for a new Raytheon/Raymarine.
 

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Check out how high a RADAR unit has to be mounted above the surface in order to see 16NM then take a look at the height required to see 24 NM. 1.2 times the square root of the height of the scanner gives the optical range. For example, a scanner mounted 20' above the water-line will provide the radar of 5.4 miles range before the radar beam is 'blocked' by the earth's curvature. If the target is taller as in a ship or building then the range is extended. Two factors to take into consideration with regards to radar range: 1) height of the antenna and 2) height of the target, so the same equation can used to determine the targets radar horizon, by using the sum of the distance to the targets radar horizon to the maximum radar horizon to derive the maximum detection range for that target.
So same example, a scanner mounted 20' above the water-line will provide the radar of 5.4 miles range, radiating a target that is 20' feet tall, can detect that target at a maximum range of 10.8 miles, also remembering that atmospheric and weather conditions can either increase/decrease the range. 4kw is also alot of power to subject your crew to on a small boat.
 

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4kw is also alot of power to subject your crew to on a small boat.
Actually, due to the design of the radar, assuming an undamaged radar installed according to manufacurers guidelines, there is no danger to personell on the boat whatsoever. Of course if you mount the scanner at eye level or within 3 ' of your body (on the horizontal plane), all bets are off .
 

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There are thousands of boats out there with relatively powerful radars mounted atop the hard top or on a radar arch. My last boat was a 37" Egg & the radar (48" open array) was on the hard top but below the tower station. I never did start to glow :rolleyes:
 

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I've a 24' walkaround/hardtop with Furuno 1734. Concur with Pursuit and his info. about curvature/dome height/distance. I will add that it's a little more comforting being 60-70 miles offshore to have an additional 12 mile range when the late day t-storms start gathering. 99.9% of the time though mine probably operates 2n.m. or less. Don't think I have suffered any adverse effects from the 4kw................yet!
 

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i also have a 28 walk around and i went with the 18" dew to height. as my boats sets on the trailer it is 13' 3" . i like the true color aspect of the furuno. i would love to have the larger size unit but i dont want to push the height limits any closer. i have been very pleased with the furuno. just wish my auto polit worked as well.
 

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I had a TR-1 auto pilot instaled by mid shore and have had the same ongoing problem with the pilot wanting to go hard starbord. Mid shore has been very, very helpful. Tr-1 had the factory rep come out over the summer and changed the wireless. Then in december it did it again, now the boat is at midshore and they are upgrading the wireless reciver to a new unit TR-1 has devolped. Hope this is the end to this problem as the pilot is great and does a great job .Also i cant say enough good things about mid shore, they have made every effort to fix / replace the pilot.
 

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Discussion Starter · #13 ·
I've a 24' walkaround/hardtop with Furuno 1734. Concur with Pursuit and his info. about curvature/dome height/distance. I will add that it's a little more comforting being 60-70 miles offshore to have an additional 12 mile range when the late day t-storms start gathering. 99.9% of the time though mine probably operates 2n.m. or less. Don't think I have suffered any adverse effects from the 4kw................yet!
Thanks to everone for the responses!!
Shutterbug- your 1734 is that a stand alone or net worked? Does yours overlay the map? Do you recomend heading sensor to overlay or is stand alone radar just fine? Thanks Keith
 

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Keith,

I have the single unit 1731 MKIII on my 33 Grady. Went w/ the radome as well, mounted it on the hardtop where the notch is which doesn't occlude my masthead light, however I don't trailer like you do, so overall height was not a concern for me. Any unit will provide you better situational awareness, i.e. navigation & collision avoidance, than none @ all, it's just a matter of personal preference, discretionay income, and knowledge of it's capabilities. There was a previous poll/post on the VA Board WRT radars, might want to give that a read if you hadn't already. Like your fishfinder, if the gain ain't right . . ., well you can fill in the blanks on the rest.
Catch 'em up.
Evan.

Here's the link to the other board poll/post. http://www.tidalfish.com/forums/showthread.php?t=193673
 

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The bigger and more powerful the array, the smaller the beamwidth. The smaller the beamwidth the better target resolution you will have. I have used all sizes and think the 4kw units are the smallest I would invest in due to target resolution capabilities. When the pucker factor is high in fog at 0430, you want good target resolution so you can distinguish the buoys and day markers from the other **** out there. Think about the value of the boat and people's safety that you're dealing with and the extra cost spread out over a couple hundred trips is insignificant.
 

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Discussion Starter · #19 ·
One more question guys. Do you like the crt or lcd color screens. I havent used one but the color looks brighter and easier to see. Thanks Keith
 

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Keith, personal preference here again. My unit is a CRT w/ 8 different brillance settings so you can get it just right depending on time of day/night. Compared to the GPS & Fish Finder I have [Garmin & Furuno respectively], which are color units, I'm used to it and grew up w/ those on Chesapeake Bay and earlier days in the Navy. Either way, you'll get used to it over time.
Evan.
 
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