Radar professional radar technician servicing furuno, raytheon, raymarine, garmin, jrc, koden and more. 

Regardless of size boat, radar is very important and so nice to have. On this page you will quickly learn everything you need to know about radar. Scroll down for advanced radar theory study then apply. 


Marine radar operation and repair. Marine radar sales, marine radar installation and intergration. 
Its been a long time since radar has leaped frogged older technology. Like batteries they kept evolving they maxed out. Thanks to analog to digital conversion, nmea 2000 buss and chip manufactures who can now do small marine sectors cheaper, marine radar just jumped to a new real innovation level again. 

 My 1st navy radar calculated range with servo and synchro mechanical devices. Today your radar not only can have more power for less money and its much smarter even with a computer from office depot. Of course marine expensive computers are the way to go but maybe 6 cheaps ones all with same stuff loaded is better, only if dry, i'm not sure about bad weather and cheap computors. Raymarine and furuno have it all in one box nice and waterproof and pretty looking. 

80's we went from cathode ray tubes to CRT monchrome green screens and now to TFT true 256 color and waterproof touch displays. Bigger is better but they suck power, dont take high heat or very low temp well and aren't as great in bright sunlight as you hoped. To make them the brightest they overdrive screen levels, everyone has same screen plates otherwise. 

We went from analog which is still the microwave signal coming out of antenna that goes out and back with no processing, not anymore.  You still dont want to look into it or have it beaming on you but now since 2006 more significant changes have taken place in the processing of the radar echo and the control of the transmitter. 

These types of radar scanners have been called ‘Intelligent’ or ‘Active’ scanners. Think about the processing of the data in a radar system as a chain of events starting from the transmitted pulse and ending up as a pixel on the display. The change to an intelligent scanner has meant that more of the processing takes place in the scanner itself. The output from which is a generic communication method, such as Ethernet. The by products of this are thinner and more flexible cables between the scanner and the display.
This new intelligence in the scanner has led to manufacturers claiming their transmitters are now digital. This claim is misleading as the data processing has always been digital at some point in the chain. Recently the point at which it becomes digital has now moved from the display further up the chain to the scanner.

Same with digital sonars and fisfinders, same same just differant frequencys and transmitters. 

You might have seen the patrol boats with thermal infared FLIR devices. They use heat and still very expensive but are a great add on to compliment radar images. Radar is here to stay, but good proccessors can overlay many frames of info. 

We've seen radars come way down in price per kilowatt of power. I've also seen a fair number of boats allow me to install their radar transmitter antenna with a slight tilt down of about 4-7 degrees on power boats which look funny at dock. Sailboater you must pay te extra for an expensive swinging gravity bracket for sailboats. Both will keep the narrow radar beam on the horizon more often as you roll in heavy seas.


Sailboats should get 4 kw radar if you can and put a display at cockpit first then nav station and maybe cabin too. Makes sure its not in thhe demonstartion mode. 

On the other hand, if your boating activities are mainly close to shore or you use your radar as an aid for short range navigation, then you should be looking for a more compact solution such as an 18” or 24” Radome. These types of radar are excellent for navigation in the 3-6nm range, which is where most people use their radar.

Sailboats usually get domes so sails dont get tangled but open array is always better if you can build radar guards. Make sure you order extra long cable for mast mounts. and really no one knows how long it will take to pull your radar cable. It could take only an hour or all day. I like pole mounts with self leveling antenna mounting and upper support brackets with rope winch arm. Sailboats can use power saver modes if on energy crunch. 

Power boats, buy as much power as you can afford and get as wide of an open array antenna as you can fit. Everything in marine electronics is about biggest antenna always wins. Why, short version small antenna several pongas look like a blob up close and a 4 6 or 8 ft anttenna they show up as several targets.

Install remote multifunction displays around boat so all information is displayed everywere and use them in day time to get used to seeing with your eye and comparing wat screen shows and more importasntly wat it does not show, like long low beaches close but on screen all you see is the big sand dune 2 miles further back on land.   

NEWEST Since everything from engine data to position is on the nmea 2000 buss you dont really need to think about traditional radar. You can buy any number of good antennas and proccess that signal with a marine computer. Tap one cable and its sends all the raw new digital antenna information to the laptop or desktop cpu and with software you have a marine radar. Then with any number of output formats can send video screen information anywhere on boat. 

You can add GPS and ARPA data for tracking several boats at one time. A little bit like an airport radar. Waypoints you've designated in your gps can show up as relative position on on radar screen to help see targets in your track.  If you have a gyro or flux rate gate compass input you can enhance target tracking. 

I sell radars for cost plus ten percent plus tax and add extra 2 years to all radar warrantys if I install and provide complete system. Email Radar Greg your question