An Amazing Combo with a 7" Touchscreen Display
- 7" WVGA touchscreen display with pinch-to-zoom
- HD-ID™ sonar
- 10Hz GPS/GLONASS receiver
- NMEA® 2000 and wireless connectivity
- Worldwide basemap
Showing posts with label Glonass. Show all posts
Showing posts with label Glonass. Show all posts
Garmin GPSMAP 721xs
Garmin echoMAP™ 50dv
Fishfinder/Chartplotter Combo With 5” VGA Display
5” VGA display
Garmin HD-ID™ sonar and DownVü™ scanning sonar for a nearly photographic view of fish and structure under the boat
Available with preloaded LakeVü™ HD or BlueChart® g2 coastal mapping
Transmit power (RMS)/(Peak to Peak): 500 W/4,000 W, includes water surface temperature
The echoMAP 50dv combination fishfinder/chartplotter with 5” color display has built-in advanced Garmin HD-ID and DownVü scanning sonar. DownVü provides a nearly photographic view of fish and structure under the boat.
The built-in 10 Hz GPS/GLONASS receiver updates your position and heading 10 times per second to display more fluid vessel movement, which makes it much easier to accurately mark and navigate to 5,000 waypoints. The echoMAP 50dv also includes sonar-recording capability that coordinates the timing of the sonar return with your boat's position and saves digital information for playback on a computer using HomePort™ planning software. For even more functionality, wirelessly connect to Apple® (mobile digital device) for BlueChart® Mobile.
Available with preloaded LakeVü HD maps — more than 17,000 lakes plus more than 5,700 HD lakes with 1’ contours shoreline to shoreline — or BlueChart g2 and BlueChart g2 Vision coastal maps.
5” VGA display
Garmin HD-ID™ sonar and DownVü™ scanning sonar for a nearly photographic view of fish and structure under the boat
Available with preloaded LakeVü™ HD or BlueChart® g2 coastal mapping
Transmit power (RMS)/(Peak to Peak): 500 W/4,000 W, includes water surface temperature
The echoMAP 50dv combination fishfinder/chartplotter with 5” color display has built-in advanced Garmin HD-ID and DownVü scanning sonar. DownVü provides a nearly photographic view of fish and structure under the boat.
The built-in 10 Hz GPS/GLONASS receiver updates your position and heading 10 times per second to display more fluid vessel movement, which makes it much easier to accurately mark and navigate to 5,000 waypoints. The echoMAP 50dv also includes sonar-recording capability that coordinates the timing of the sonar return with your boat's position and saves digital information for playback on a computer using HomePort™ planning software. For even more functionality, wirelessly connect to Apple® (mobile digital device) for BlueChart® Mobile.
Available with preloaded LakeVü HD maps — more than 17,000 lakes plus more than 5,700 HD lakes with 1’ contours shoreline to shoreline — or BlueChart g2 and BlueChart g2 Vision coastal maps.
Garmin Fishfinder GPSMAP® 1040xs
10" Keyed Chartplotter/Sonar Combo for Cruising, Sailing or Fishing
- Keyed chartplotter/sonar combo with 10” color SVGA display
- Preloaded U.S. LakeVü™ HD and BlueChart® g2 coastal maps
- Built-in Garmin HD-ID™ 1 kW sonar, CHIRP and DownVü™ scanning sonar with CHIRP technology
- High-sensitivity internal 10 Hz GPS/GLONASS receiver
- Supports all Garmin marine radar
Extreme Sonar Capabilities
The built-in sonar capabilities of the GPSMAP 1040xs gives you the freedom and flexibility to choose from several optional transducers, including 1 kW traditional, CHIRP and all-in-one HD-ID/DownVü scanning sonar with CHIRP technology. Add a GCV™ 10 black box sonar for both DownVü and SideVü™ scanning sonar with CHIRP technology (sold separately). When used with a compatible CHIRP transducer (sold separately), GPSMAP 1040xs displays crystal-clear sonar images detailing fishing hot spots, ship wreckage or a diving location. With Garmin CHIRP technology, you get remarkable target separation and resolution at extraordinary depths, and can dial into specific frequencies to target certain species of sport fish. Bottom contours are more visible, even at speed, and signal noise can be suppressed at greater depths to provide a more timely interpretation of what’s below for safer navigation and better fishing.Includes Inland and Coastal Mapping
The GPSMAP 830xs comes preloaded with both BlueChart g2 coastal maps and LakeVü HD, which features 17,000 U.S. lakes, of which more than 5,700 HD lakes have 1’ contours shoreline to shoreline. It's also compatible with optional mapping, LakeVü HD Ultra with MaxDef Lakes and BlueChart g2 Vision.Super-fast 10 Hz GPS/GLONASS
High-sensitivity internal 10 Hz GPS/GLONASS provides position and heading updates 10 times per second. It displays fluid on-screen location and proves to be incredibly accurate when marking 5,000 waypoints and navigating.Garmin eTrex 10 2.2" Portable GPS
The Garmin eTrex 10 2.2 Portable GPS is a great choice in Portable
handheld Rugged GPS system. The Garmin eTrex 10 Navigation System comes
with 2.2-inch 176 x 220 screen resolution monochrome display that
enables you to read easily even bright sunlight. It has a
high-sensitivity GPS receiver is a WAAS-enabled GPS receiver with HotFix
and GLONASS support for fast positioning. It comes with worldwide
basemap making which makes the travelers to identity the current
location easily. It has a long battery life up to 20 Hours on two AA
rechargeable batteries that help the travelers a un-interpreted longer
journey. Since it weight just 5 ounces along with batteries and also
compatible with a variety of spine mounting accessories, it can be used
for cycling, hiking, hunting, and other activities. The Garmin eTrex 10
2.2 Portable GPS is the easiest device to know where you are heading
next.
Garmin eTrex 10 2.2" Portable GPS:
2.2" monochrome display - Presents information clearly and brightly for optimal navigation
Durable and waterproof - Withstands dust, dirt, humidity and water
Download
GPX files and details to the unit for paperless geocaching - Stores and
displays location, terrain, difficulty, hints, descriptions and more
WAAS-enabled GPS receiver and HotFix satellite prediction - Get quick and precise locations
Tracks
both GPS and GLONASS satellites simultaneously - Lock on to a position
about 20 percent faster than with GPS alone, as well as the ability to
lock on to 24 more satellites
Battery - Lasts 25 hrs
GPS / GLONASS receiver for ships, DC-200 series
The DC-200 series RTK receivers from AD Navigation provide real time
positioning data at the 1 cm accuracy level while attaining the highest
reliability and stability possible. These RTK receivers are specifically
designed to function flawlessly in the most demanding environments
encountered by the hydrographic and dredging industries, including high
multipath locations.
Simple and genuine, the front end of the DC-201 receiver. On the right, Power button and USB(for configuration) Led indicators for satellite tracking, UHF TX/RX and PPS.
Unique Advantage of Seamless Combination of GPS and GLONASS
The heart of the AD Navigation DC-200 RTK receivers is built around the world's most advanced GPS/GLONASS L1/L2 technology. By seamlessly combining the GPS and GLONASS satellite systems, the DC-200 series RTK receivers access a total of 40 positioning satellites. During normal operation, the DC-200 series RTK receivers track 30-50% more satellites than does a GPS-only system.
Simple and genuine, the front end of the DC-201 receiver. On the right, Power button and USB(for configuration) Led indicators for satellite tracking, UHF TX/RX and PPS.
Unique Advantage of Seamless Combination of GPS and GLONASS
The heart of the AD Navigation DC-200 RTK receivers is built around the world's most advanced GPS/GLONASS L1/L2 technology. By seamlessly combining the GPS and GLONASS satellite systems, the DC-200 series RTK receivers access a total of 40 positioning satellites. During normal operation, the DC-200 series RTK receivers track 30-50% more satellites than does a GPS-only system.
C-Nav3050
The
C-Nav3050 integrated C-Nav/RTK Extend Receiver provides decimeter-level
position accuracy, anywhere in the world, anytime. Powered by the new
Sapphire GNSS Engine, the C-Nav3050 provides 66-channel tracking,
including multi-constellation support for GPS, GLONASS and Galileo. It
also provides patented interference rejection and anti-jamming
capabilities. The C-Nav3050 is fully upgradeable, allowing users to go
from a single-frequency receiver, to multi-frequency with a simple
software upgrade. The flexibility of the C-Nav3050 will enable you to
adapt to any application, and will give you the confidence to get the
job done.
The History of Car GPS Navigation
It's tough to believe, but in-car GPS navigation has
already been around for more than a decade. Yet were it not for
politics—and Einstein's theory of relativity—we wouldn't even have it in
the first place.
Twenty years ago, a road trip meant a bunch of fold-out maps stuffed
into your glove box or your car door panel pockets. Pulling over,
unfolding one like a giant newspaper, and then figuring out where you
were and how it corresponded to what you were seeing through the
windshield was the norm. Along the way, those maps gave way to MapQuest
or Yahoo Maps print-outs, and now, fortunately, we've got portable
navigation devices (PNDs), in-dash GPS systems, and GPS-enabled
smartphones. Voice-enabled navigation is more commonplace than ever, as
the average PND price keeps getting lower and lower, and high-quality
navigation apps are available for most smartphones. Android phones even
come with free Google Maps with driving directions.
But to figure out how we got here, we need to first look at how it all began.
Einstein and the Origins of GPS
The U.S. Department of Defense first developed satellite-based global positioning technology for the military. An early satellite-based system dubbed TRANSIT was up and running as early as 1960, with more refined and precise versions involving multiple satellites in general military use by the early 1980s (pictured, right). But it wasn't until 2000 that precision GPS navigation became open to the public.
Publicly available GPS devices had already been around since the early 1980s. But the military added interference to the signals to ensure their own version was the only one that could be used with any precision. After four years of deliberations, President Clinton signed a bill in 2000 ordering the military to cease scrambling satellite signals used by civilians. This instantly upgraded the accuracy of the few consumer-based systems already in existence by a factor of 10, and opened the doors to a much larger, consumer electronics-based industry for GPS navigation.
Today, a network of 24 U.S.-based GPS satellites orbit the earth, ensuring that at least three are available at any one time for a device's position request anywhere on the globe. Russia's own GLONASS system of 22 satellites will soon work with some compatible smartphones in the U.S. for additional accuracy.
Most people don't realize that in order for global positioning to work, Einstein's theories of special relativity and general relativity must come into play. On a basic level, GPS finds your position by looking at the time stamp from a number of satellites orbiting the earth, how far away each one is from you, and how far apart each one is from the other. With that data, the system triangulates your position on the ground. But because of relativity, the clocks in the satellites advance ever so slightly faster than clocks on the surface of the Earth. Plus, moving clocks are slower than ones standing still—again, by a very tiny amount.
While those two effects work against each other, the net result isn't equal: You end up with a discrepancy of roughly 38 microseconds per day. That incredibly small difference is still enough to report your actual position off by miles, which would render the GPS system worthless, were it not for allowing for relativistic effects.
The Road to In-Car Navigation
Even after 2000, it would be a while before consumers would see GPS navigation in cars en masse. Fortunately, the dot com boom was already coming to the rescue. Beginning around the turn of the century, computer-generated, turn-by-turn directions from websites like MapQuest were a common sight. Not only were these websites godsends for finding unfamiliar hotels and restaurants, but they also assisted plenty of small businesses heavily reliant on driving—think of home improvement contractors, real estate agents, and freight services, just to name a few examples.
Map-based websites weren't perfect, though. Early routing algorithms were imprecise, and sometimes repeated steps over and over again—long lists of instructions that basically said to stay on the same road for 12 miles were a constant source of frustration. Plus, you still had to print them out and take them with you, which meant you needed to pull over to read the next few steps. And if you wandered off course, you were just as lost as you would have been with a map—worse, actually, if you left the actual map at home, since the printed directions were for one specific route.
http://www.pcmag.com/
But to figure out how we got here, we need to first look at how it all began.
Einstein and the Origins of GPS
The U.S. Department of Defense first developed satellite-based global positioning technology for the military. An early satellite-based system dubbed TRANSIT was up and running as early as 1960, with more refined and precise versions involving multiple satellites in general military use by the early 1980s (pictured, right). But it wasn't until 2000 that precision GPS navigation became open to the public.
Publicly available GPS devices had already been around since the early 1980s. But the military added interference to the signals to ensure their own version was the only one that could be used with any precision. After four years of deliberations, President Clinton signed a bill in 2000 ordering the military to cease scrambling satellite signals used by civilians. This instantly upgraded the accuracy of the few consumer-based systems already in existence by a factor of 10, and opened the doors to a much larger, consumer electronics-based industry for GPS navigation.
Today, a network of 24 U.S.-based GPS satellites orbit the earth, ensuring that at least three are available at any one time for a device's position request anywhere on the globe. Russia's own GLONASS system of 22 satellites will soon work with some compatible smartphones in the U.S. for additional accuracy.
Most people don't realize that in order for global positioning to work, Einstein's theories of special relativity and general relativity must come into play. On a basic level, GPS finds your position by looking at the time stamp from a number of satellites orbiting the earth, how far away each one is from you, and how far apart each one is from the other. With that data, the system triangulates your position on the ground. But because of relativity, the clocks in the satellites advance ever so slightly faster than clocks on the surface of the Earth. Plus, moving clocks are slower than ones standing still—again, by a very tiny amount.
While those two effects work against each other, the net result isn't equal: You end up with a discrepancy of roughly 38 microseconds per day. That incredibly small difference is still enough to report your actual position off by miles, which would render the GPS system worthless, were it not for allowing for relativistic effects.
The Road to In-Car Navigation
Even after 2000, it would be a while before consumers would see GPS navigation in cars en masse. Fortunately, the dot com boom was already coming to the rescue. Beginning around the turn of the century, computer-generated, turn-by-turn directions from websites like MapQuest were a common sight. Not only were these websites godsends for finding unfamiliar hotels and restaurants, but they also assisted plenty of small businesses heavily reliant on driving—think of home improvement contractors, real estate agents, and freight services, just to name a few examples.
Map-based websites weren't perfect, though. Early routing algorithms were imprecise, and sometimes repeated steps over and over again—long lists of instructions that basically said to stay on the same road for 12 miles were a constant source of frustration. Plus, you still had to print them out and take them with you, which meant you needed to pull over to read the next few steps. And if you wandered off course, you were just as lost as you would have been with a map—worse, actually, if you left the actual map at home, since the printed directions were for one specific route.
http://www.pcmag.com/
iPhone 4S: Apple is no slouch in making good use of GPS functionality
Apple is no slouch in making good use of GPS functionality. In fact they’ve taken it a step further with the iPhone 4S offering a “personal assistant” in the form of Siri to make finding your way to your next destination a hands-free experience.
- Find my friends – Using its iCloud service you can use your iPhone to track your friends; ideal for meetups. Of course they’ll also need an iPhone and be signed up to the iCloud service.
- Siri – Simply speak your location requests for instant results e.g. where’s the nearest ATM, take me home, take me to the Eiffel Tower
- GLONASS – Not only do you get the American-owned GPS system but you also get assistance from Russian controlled GLONASS satellites (how’s that for post-Cold War cooperation?). This means you have a higher chance of getting a good location signal and faster service.
Russia will launch two Glonass satellites
Russia will launch two Glonass satellites in 2012 to expand its global satellite navigation network in orbit, the Russian Federal Space Agency Roscosmos said on Wednesday.
Glonass is Russia's answer to the U.S. Global Positioning System, or GPS, and is designed for both military and civilian uses.
"We are planning to carry out two Glonass satellites this year," Roscosmos head Vladimir Popovkin said in an interview with Vesti 24 television.
A group of 31 Glonass satellites is currently in orbit, with 24 operating to provide global coverage, four in reserve and one undergoing trials.
Russia may spend 346.5 billion rubles (almost $12 bln) on the maintenance and further development of the Glonass network in 2012-2020.
Glonass is Russia's answer to the U.S. Global Positioning System, or GPS, and is designed for both military and civilian uses.
"We are planning to carry out two Glonass satellites this year," Roscosmos head Vladimir Popovkin said in an interview with Vesti 24 television.
A group of 31 Glonass satellites is currently in orbit, with 24 operating to provide global coverage, four in reserve and one undergoing trials.
Russia may spend 346.5 billion rubles (almost $12 bln) on the maintenance and further development of the Glonass network in 2012-2020.
GLONASS / GPS integration
Why is this GLONASS / GPS integration such a huge advantage?
In the mid 1990’s the first dual constellation receiver boars appeared on the market that integrated single-frequency GPS plus GLONASS signals. Now we explained that in order to generate coordinates one must be viewing 4 satellites, but to truly generate "Good Coordinates" you would like to see 6 satellites. Finally to have the "best" accuracy you need to receive signals from a minimum of eight satellites. Well, there are times during the day when it is impossible to get eight GPS satellites in view, even on a flat job site! Now, add in some trees, a few buildings—you could be lucky to receive 4 or 5 GPS satellites. What does that do to your accuracy, if you’re able to keep working at all? Ultimately, when you invest in a positioning solution, whether for a surveying crew or for stake less 3-D grading, you want “uptime” not “downtime,” and that uptime must be accurate.
Therefore, the one overwhelming advantage to GPS and GLONASS integral systems is this — the integration provides access to 33 percent more satellites than ordinary GPS. That’s because GPS with GLONASS has the ability to track not only both frequencies of all 24 GPS satellites, it can also receive the signals from the 9 GLONASS positioning satellites (with another 6 GLONASS satellites scheduled for launch this year). The accessibility to more satellites directly relates to the precision obtained. A satellite availability comparison shows that at all times the Dilution of Precisions are lower numbers when GLONASS satellite information is included with GPS satellite positioning information, in comparison to GPS satellite positioning information alone.
In the mid 1990’s the first dual constellation receiver boars appeared on the market that integrated single-frequency GPS plus GLONASS signals. Now we explained that in order to generate coordinates one must be viewing 4 satellites, but to truly generate "Good Coordinates" you would like to see 6 satellites. Finally to have the "best" accuracy you need to receive signals from a minimum of eight satellites. Well, there are times during the day when it is impossible to get eight GPS satellites in view, even on a flat job site! Now, add in some trees, a few buildings—you could be lucky to receive 4 or 5 GPS satellites. What does that do to your accuracy, if you’re able to keep working at all? Ultimately, when you invest in a positioning solution, whether for a surveying crew or for stake less 3-D grading, you want “uptime” not “downtime,” and that uptime must be accurate.
Therefore, the one overwhelming advantage to GPS and GLONASS integral systems is this — the integration provides access to 33 percent more satellites than ordinary GPS. That’s because GPS with GLONASS has the ability to track not only both frequencies of all 24 GPS satellites, it can also receive the signals from the 9 GLONASS positioning satellites (with another 6 GLONASS satellites scheduled for launch this year). The accessibility to more satellites directly relates to the precision obtained. A satellite availability comparison shows that at all times the Dilution of Precisions are lower numbers when GLONASS satellite information is included with GPS satellite positioning information, in comparison to GPS satellite positioning information alone.
Magellan Ashtech MobileMapper 100
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