Question about Furuno 3.5' Open Array Antenna 48 Nm Ramge 2.2 Deg Beam

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I have just picked up a Furuno frs-48 radar unit and I want to know how to check if the magnetron is working. I can tune it on the display unit

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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maklean
  • 1665 Answers

SOURCE: furuno radar

Your antenna seems to be mis alighned. Its ZERO point must be readjusted.

Posted on Sep 14, 2008

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rjrod888
  • 8 Answers

SOURCE: Furuno Radar 1623 and 1715

Hello.

According to the operating manuals of the two radars (found on Furuno's Website (www.furunousa.com), they do use the same antenna cable.

Hope this was helpful.

Posted on May 04, 2009

  • 1 Answer

SOURCE: testing and operation of furuno 1621 radar.

I have the original manuals.....

Posted on Jan 11, 2010

TechnoMarine
  • 132 Answers

SOURCE: furuno radar antenna not rotating

yes, this is a common failure after hours and hours of use

Posted on Jan 13, 2010

TechnoMarine
  • 132 Answers

SOURCE: I need to replace the LCD display on a Furuno 1621 radar

if you have the part #, call 847-746-0100, I will order it from Furuno for you.

Posted on Jan 16, 2010

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1 Answer

How to install FURUNO magnetron MG5436 for Radar


Assuming you have the right magnetron for the right model radar, you desolder the two leads, remove the 4 or 6 mounting screws and reverse the process for the new maggie. Let radar run in standby for 30 minutes before going to transmit. Most Furuno radars have auto-tune and will tune itself to new magnetron.

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No data at >1mile


If the unit is new and never been set up post installation, that's probably your problem. You have to go into the Installation Wizard and set the unit up properly. There are multiple choices of displays and scanner units to select to obtain the configuration you have. Then the radar has to be optimized (auto-tuned). If you don't have access to an installation manual and feel confident yourself, you'll need to contact a local Furuno authorized dealer or call Furuno USA tech support and they'll walk you through it. Their number is 360-834-9300

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Our Radar Furuno 1715-24NM On. ( Power in Oke ) but can not show drawing in monitor/lcd. thanks. regard - damanik


If you have no radar targets, go to longest range 24 miles, gain full, rain and sea minimum, do you have noise, if so, need magnetron, if not, need cable from display to dome.

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I am not picking up objects on my screen until I am right on them. Tried tilting the radar dome down foward to see if this would work to no avail. Any suggestions greatly appreciated.


depending on the type of boat you currently have it mounted on, you may be out of range. Also your radar may need tuning and make sure your rain and seaclutter is not too high. Make sure the rain clutter is off. If the radar is mounted on a sailboat and you're having this problem, it's most likely the height unless it worked before in which case it could either be the display or the radar components. Magnetrons which run the radar also have a life.

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RADAR WILL SHOW CLUTTER AND NOISE WHEN GAIN IS TURNED UP BUT THE UNIT WILL NOT PICK UP ANY OBJECTS.... LAND, RAIN EXE.... WHAT COULD CAUSE THIS


If the radar has over 2000 hours it may need a magnetron replacement. Mid-Shore Electronics in Maryland can provide that service if you require it.

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2 Answers

RE: life of the radar magnetron


i have a furuno 1700 radar ,when i switch it on it goes to stand by ,when i press the standby button you can see it scanning but no land appears cheers alan

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