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boemarine786 commented 5 months ago
#7414

hi Chuck Holly from West Breen this is a buyer's guide to GPS or Global Positioning System you know it wasn't so long ago that it was pretty difficult for Marine Navigation to figure out where they were in the world they either had to use celestial navigation or they had to use an electronic means of navigation most of which had drawbacks of one sort or another now with GPS you can find yourself with great precision literally anywhere in the world you know in 1990 we were introduced to the first practical personal Marine GPS this is an old nav 1000 plus from Magellan.

I remember going to the Boat Show in Chicago and seeing this for the first time it was being sold for the remarkably low price of two thousand nine hundred and ninety-nine dollars and it's a pretty basic unit well things have certainly changed since then we like to divide the world of gps's up into three different categories we have handheld devices portable devices and fixed mount devices in the following article we're going to go through each of those three types so that you can figure out what's best for you so our first category of Marine GPS are portables o handhelds like this little

 

Garmin GPS map 78SC

one of the advantages of portables is that they're not reliant on the ship's battery power for operation although virtually all of them allow you to connect two 12-volt power cords should you want to run off of 12 volts they offer a small display in this case a daylight readable color display which is really legible internal antenna so there are no wires to connect to any other parts of the Marine Navigation boat and an amazing amount of functionality with a handheld like this you can plot routes you can go to individual waypoints you can look up the tides.

you can slip in different map cartridges for different areas of the world I mean it's extremely versatile and in fact if you wanted to you could connect a cable to this small device and have it make your autopilot go directly to a waypoint the disadvantage well it has a pretty small screen and if you're using Garmin GPS Marine it frequently having a larger screen that's mounted permanently is more it's easier to use but one of the nice things is the portability if you want to go on a trip or go on somebody else's boat or if you want to sit up on the rail and make sure that your skipper is driving to the Waypoint you can put this in your pocket it's very portable and gets a fix extremely fast models like this range.

anywhere from roughly a hundred dollars up to the five hundred dollar range depending on their features for a hundred dollars you'll get a monochrome GPS Marine Navigation unit that doesn't have any maps built into it as you go up into $200 you'll start getting a cartographic unit that shows your maps and maybe for $300 or so you'll start to get a color display whichever one you choose they're tremendous values.

 

Garmin GPS Map 640

Second category of GPS is what I like to call portables now while this is a handheld unit or at least I'm showing it as a handheld unit it's a little bit too big to be held comfortably for long periods of time this is a gps map 640 from Garmin GPS Marine and it comes with two different brackets one that you can put on the dashboard of a car and one which you can bolt to a boat or put to some other fixed location it also comes with a couple of different power cords.

so that you can plug it into 12-volt power or you can use the internal batteries in the back it has a lithium-ion battery pack which is good for many hours of operation so what do you get when you go up to a more sophisticated portable unit you get a six inch display so it's quite a bit easier to read and charts especially need lots of space to be kind of easy to be easily interpreted it also has a touchscreen operation so you just use your finger as the user input device that allows you to pan and to zoom and to choose waypoints and to enter information all with your fingertip so that's a really nice feature now there aren't a lot of different Marine GPS models in this portable category in fact the GPS 640 and its twin the 620 or some of the only ones that.

I can really think of butn it's a nice combination of Portability and also big enough that you might want to use it as your permanent GPS on a vessel the 640 has one other feature which is that it has a full you Street database built-in so when you snap this into the automotive bracket it automatically turns into the equivalent of a six-inch Nuvi car navigation system so it's equally at home on the water with full coastal mapping of the United States or in your car with full land-based mapping for driving to destinations so the Marine GPS map 640 is a really versatile device and it fills in the gap between the handheld devices and the fixed mount devices when you move up.

 

Garmin GPS Map 546

to a fixed mount unit the smallest size is generally around 4 inches diagonal measurement but one of our most popular ones is a 5 inch fixed mount device in this case this is a 546 s from Garmin GPS Marine this is not a touch screen display so we've got a series of buttons down the side Garmin has really simplified the user interface here so there's a relatively few buttons and they're very consistent in their operation and you get a combination of a cartographic display down here as well as useful digital information on top now this particular model is available.

as a chart plotter sonar or just a chart plotter and our recommendation Marine Navigation always including if you've got a sailboat or almost any boat is to get the sonar model because it doesn't cost that much more and it's really got some great features so what do you get you get a fully waterproof display obviously daylight readable color and in this case the 546 s and various variations on it have full cartographic coverage of the United States so that means there's no chart cartridges that you have to buy it comes built into the unit so it's a really good value now if you want incremental performance Garmin GPS Marine offers something called the g2 vision card and the g2 vision card allows you to have better underwater contours and sort of different perspectives of the view that you're looking at but that's an option you don't actually need to have it.

if you want it it's a couple hundred dollars and you can plug it in and it fantastic so as I mentioned in addition to having the normal functions it also has a full function sonar see I'm used to using the touchscreen so it's easy to want to do that and here we have a 200 kilohertz sonar showing us at sixteen point seven feet deep and this will go to someplace in the six hundred to a thousand foot range depending on you know the type of water temperature of the water the amount of turbulence and so forth but we have seen depths up to a thousand feet so the 546 s is a great example of a small fixed mount Marine GPS finally.

 

Garmin GPS Map 740

our last category our larger fixed mount units like the GPS map 740 again from Garmin GPS Marine in this case you get a seven-inch diagonal display which is really easy to read daylight readable of course fully waterproof enclosure it's also a touchscreen model so that you don't have any buttons you just use your finger to change it but what's nice is that it's not only a GPS chartplotter so that it can show you maps of the world and it can lie to navigate any number of ways but it also has a built in sounder so if you put a transducer on the bottom of your boat you can use it for a high quality sonar as well as a Marine GPS and on a boat like this.

where I have a limited amount of room in my helm area I don't really have space for a second instrument so this really works well in this rib the display again is fully color it's daylight readable very easy to use and as I want to change things I just changed the screen I can go to different perspective views of the vessel this is what they call Marine Navigation i3d which is sort of a downward looking view or I can pull up sonar and look at a full-screen picture here's a little activity on the bottom you can see there this is both 200 kilohertz and 50 kilohertz I mean it has incredible features I actually took this out to the Monterey Bay Canyon which is not too far off shore from here and was getting reliable readings at a thousand feet and that's using a transducer about that big so it's an excellent sonar but more importantly it's an excellent Marine GPS .

so if you're out the fog comes in and you're trying to find your way home the GPS map 740s is a great choice so as you can see Marine GPS has come off long ways in the last 20 years from $3,000 handhelds with no Maps and no graphics to these modern handhelds portables and fixed mount units hey I forgot to mention one thing about the 740s in addition to having the sonar also has the ability to plug in a radar so you have all three functions in a single touchscreen seven inch display but that brings up the next topic there's a whole raft of products from Raymarine and Lawrence and Garmin GPS Marine and other manufacturers that are Network displays these allow you to have one or more displays in various places of the boats.

 

GPS Sonar and Radar Capable

in a variety of sensors radar Marine GPS sonar weather video inputs and all host of other functions but that gets a little complicated and so if you want more information about that go see your west brain store look on the west brain website visit our vendor websites or talk to an expert that's really the ultimate that it's for a larger boat the vast majority of boaters can be suited with by one of these four different ranges of products all of which are available from BOE Marine.

hi Chuck Holly from West Breen this is a buyer's guide to GPS or Global Positioning System you know it wasn't so long ago that it was pretty difficult for Marine Navigation to figure out where they were in the world they either had to use celestial navigation or they had to use an electronic means of navigation most of which had drawbacks of one sort or another now with GPS you can find yourself with great precision literally anywhere in the world you know in 1990 we were introduced to the first practical personal Marine GPS this is an old nav 1000 plus from Magellan.

I remember going to the Boat Show in Chicago and seeing this for the first time it was being sold for the remarkably low price of two thousand nine hundred and ninety-nine dollars and it's a pretty basic unit well things have certainly changed since then we like to divide the world of gps's up into three different categories we have handheld devices portable devices and fixed mount devices in the following article we're going to go through each of those three types so that you can figure out what's best for you so our first category of Marine GPS are portables o handhelds like this little

 

 

Garmin GPS map 78SC

one of the advantages of portables is that they're not reliant on the ship's battery power for operation although virtually all of them allow you to connect two 12-volt power cords should you want to run off of 12 volts they offer a small display in this case a daylight readable color display which is really legible internal antenna so there are no wires to connect to any other parts of the Marine Navigation boat and an amazing amount of functionality with a handheld like this you can plot routes you can go to individual waypoints you can look up the tides.

you can slip in different map cartridges for different areas of the world I mean it's extremely versatile and in fact if you wanted to you could connect a cable to this small device and have it make your autopilot go directly to a waypoint the disadvantage well it has a pretty small screen and if you're using Garmin GPS Marine it frequently having a larger screen that's mounted permanently is more it's easier to use but one of the nice things is the portability if you want to go on a trip or go on somebody else's boat or if you want to sit up on the rail and make sure that your skipper is driving to the Waypoint you can put this in your pocket it's very portable and gets a fix extremely fast models like this range.

anywhere from roughly a hundred dollars up to the five hundred dollar range depending on their features for a hundred dollars you'll get a monochrome GPS Marine Navigation unit that doesn't have any maps built into it as you go up into $200 you'll start getting a cartographic unit that shows your maps and maybe for $300 or so you'll start to get a color display whichever one you choose they're tremendous values.

 

 

Garmin GPS Map 640

Second category of GPS is what I like to call portables now while this is a handheld unit or at least I'm showing it as a handheld unit it's a little bit too big to be held comfortably for long periods of time this is a gps map 640 from Garmin GPS Marine and it comes with two different brackets one that you can put on the dashboard of a car and one which you can bolt to a boat or put to some other fixed location it also comes with a couple of different power cords.

so that you can plug it into 12-volt power or you can use the internal batteries in the back it has a lithium-ion battery pack which is good for many hours of operation so what do you get when you go up to a more sophisticated portable unit you get a six inch display so it's quite a bit easier to read and charts especially need lots of space to be kind of easy to be easily interpreted it also has a touchscreen operation so you just use your finger as the user input device that allows you to pan and to zoom and to choose waypoints and to enter information all with your fingertip so that's a really nice feature now there aren't a lot of different Marine GPS models in this portable category in fact the GPS 640 and its twin the 620 or some of the only ones that.

I can really think of butn it's a nice combination of Portability and also big enough that you might want to use it as your permanent GPS on a vessel the 640 has one other feature which is that it has a full you Street database built-in so when you snap this into the automotive bracket it automatically turns into the equivalent of a six-inch Nuvi car navigation system so it's equally at home on the water with full coastal mapping of the United States or in your car with full land-based mapping for driving to destinations so the Marine GPS map 640 is a really versatile device and it fills in the gap between the handheld devices and the fixed mount devices when you move up.

 

 

Garmin GPS Map 546

to a fixed mount unit the smallest size is generally around 4 inches diagonal measurement but one of our most popular ones is a 5 inch fixed mount device in this case this is a 546 s from Garmin GPS Marine this is not a touch screen display so we've got a series of buttons down the side Garmin has really simplified the user interface here so there's a relatively few buttons and they're very consistent in their operation and you get a combination of a cartographic display down here as well as useful digital information on top now this particular model is available.

as a chart plotter sonar or just a chart plotter and our recommendation Marine Navigation always including if you've got a sailboat or almost any boat is to get the sonar model because it doesn't cost that much more and it's really got some great features so what do you get you get a fully waterproof display obviously daylight readable color and in this case the 546 s and various variations on it have full cartographic coverage of the United States so that means there's no chart cartridges that you have to buy it comes built into the unit so it's a really good value now if you want incremental performance Garmin GPS Marine offers something called the g2 vision card and the g2 vision card allows you to have better underwater contours and sort of different perspectives of the view that you're looking at but that's an option you don't actually need to have it.

if you want it it's a couple hundred dollars and you can plug it in and it fantastic so as I mentioned in addition to having the normal functions it also has a full function sonar see I'm used to using the touchscreen so it's easy to want to do that and here we have a 200 kilohertz sonar showing us at sixteen point seven feet deep and this will go to someplace in the six hundred to a thousand foot range depending on you know the type of water temperature of the water the amount of turbulence and so forth but we have seen depths up to a thousand feet so the 546 s is a great example of a small fixed mount Marine GPS finally.

 

 

Garmin GPS Map 740

our last category our larger fixed mount units like the GPS map 740 again from Garmin GPS Marine in this case you get a seven-inch diagonal display which is really easy to read daylight readable of course fully waterproof enclosure it's also a touchscreen model so that you don't have any buttons you just use your finger to change it but what's nice is that it's not only a GPS chartplotter so that it can show you maps of the world and it can lie to navigate any number of ways but it also has a built in sounder so if you put a transducer on the bottom of your boat you can use it for a high quality sonar as well as a Marine GPS and on a boat like this.

where I have a limited amount of room in my helm area I don't really have space for a second instrument so this really works well in this rib the display again is fully color it's daylight readable very easy to use and as I want to change things I just changed the screen I can go to different perspective views of the vessel this is what they call Marine Navigation i3d which is sort of a downward looking view or I can pull up sonar and look at a full-screen picture here's a little activity on the bottom you can see there this is both 200 kilohertz and 50 kilohertz I mean it has incredible features I actually took this out to the Monterey Bay Canyon which is not too far off shore from here and was getting reliable readings at a thousand feet and that's using a transducer about that big so it's an excellent sonar but more importantly it's an excellent Marine GPS .

so if you're out the fog comes in and you're trying to find your way home the GPS map 740s is a great choice so as you can see Marine GPS has come off long ways in the last 20 years from $3,000 handhelds with no Maps and no graphics to these modern handhelds portables and fixed mount units hey I forgot to mention one thing about the 740s in addition to having the sonar also has the ability to plug in a radar so you have all three functions in a single touchscreen seven inch display but that brings up the next topic there's a whole raft of products from Raymarine and Lawrence and Garmin GPS Marine and other manufacturers that are Network displays these allow you to have one or more displays in various places of the boats.

 

 

GPS Sonar and Radar Capable

in a variety of sensors radar Marine GPS sonar weather video inputs and all host of other functions but that gets a little complicated and so if you want more information about that go see your west brain store look on the west brain website visit our vendor websites or talk to an expert that's really the ultimate that it's for a larger boat the vast majority of boaters can be suited with by one of these four different ranges of products all of which are available from BOE Marine.


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