The GPS Devices You Can Count On
A GPS or Global Positioning System is used to determine the user’s current location, and the best route and directions for the destination. These positioning systems are now widely used in a variety of devices such as smart phones, automobile navigation systems, handheld devices, laptops and other such devices.
The working of this system is relatively simple to comprehend. In the working of a positioning system a GPS receiver calculates its position by measuring the distance between itself and three or more satellites. Since the signal travels at a known speed, measuring the time delay between transmission and reception of each GPS microwave signal gives the distance to each satellite, thus the calculations can be precise.
While doing this, the signals also carry information about the satellites’ location. Thus by determining the position of, and distance to, at least three satellites, the receiver can compute its position using trilateration. The GPS receivers usually do not have perfectly accurate clocks and therefore track one or more additional satellites to correct the receiver’s clock error. In such a way your location is taken out correctly and is displayed through the navigator.
In general, the receivers used in a typical positioning system are composed of an antenna, tuned to the frequencies transmitted by the satellites, receiver-processors, and a highly stable clock. Some of them also include a LCD display for providing location and speed information to the user.
The number of channels it can operate with and can monitor simultaneously describes the capacity of a reciver. Before a couple of years the numbers of channels in the receiver were limited to four or five, but has progressively increased over the years so that receivers typically have between twelve and twenty channels in the present scenario.
This system is now commonly used in a number of devices. One such use of the GPS system is in the recreational and sports activities. This allows the professionals, navigational and other important details using their device anywhere they could get the signals. That is why such devices are very popular among hikers, hunters, skiers, mountain bikers, and other such outdoor adventure buffs.
A GPS system is very essential in keeping the track of the location, and to find way to a specified destination, or know what direction and how fast you are traveling can utilize the benefits of the global positioning system or the GPS.
GPS is also widely used in the automobiles industry as well. There are some basic GPS applications that are used to provide emergency roadside assistance at the push of a button. It works by transmitting the current position of the user to a dispatch center.
Many systems that are more advanced and show your position on a navigation map are also available. These offer not one but man features apart from the navigational map; for instance, you can choose and select the best possible way to a desired location. You can even save your preferences in this type of advance systems.
For more information visit our website http://www.gps-reviews.us
Compare Garmin GPS Systems Before You Buy
GPS and Garmin have become synonymous. They are the leading GPS manufacturer in the world today by a long way. They started out in 1989 and today they have sold millions of GPS receivers.
So how do we know which Garmin GPS device will be perfect for our needs? There are so many which makes it very difficult to decide. The Garmin Nuvi and StreetPilot are some of the most popular GPS devices on the planet. Lets take a look at some of the automobile GPS systems and compare the differences.
Garmin StreetPilot 340
The Garmin StreetPilot c340 has a big advantage over the c330. That advantage is text converted to speech. Instead of GPS saying, turn right in 50 meters, it will say, turn right at Glover Street. This feature helps a lot when you dont want to look down at the device to confirm the street name.
Another great feature of the c340 is that it can easily be upgraded with an optional FM traffic receiver. What this means is that live traffic information can be sent to your GPS device to warn you of construction work, accidents etc. The StreetPilot c340 can then show you the way around the traffic and guide you to your destination.
Garmin Nuvi 250
The Nuvi 250 is famous for its simplicity. It doesnt have the advanced options most of us never use. So many buyers waste money on GPS systems that have features they will never use. They could have saved a lot of money and at the same time satisfy all there needs with a cheaper GPS system. If youre not the hard core type then the Garmin Nuvi 250 will be the perfect match for you.
The Garmin Nuvi 250 comes with a 3.5 inch display, which is the standard among the entry level GPS devices. 3.5 inch display is a big enough screen to find your way with ease. You can also insert a SD card if you would like to load additional products and maps.
The only feature the Nuvi 250 doesnt have is the text to speech feature I explained with the Garmin StreetPilot c340. Things like Bluetooth, MP3 player, FM transmitter and widescreen is not available on the Garmin Nuvi 250 but many will agree that its not necessary. If Garmin decided to include text to speech it would have been the perfect GPS system at entry level but if that doesnt bother you it might just be the one for you.
Peter Owen has traveled Africa from top to bottom and has used all levels of GPS systems to guide him. To read reviews and compare prices of GPS devices you can follow these links http://www.garmingps.co.za or http://www.madshop.co.za.
Popular GPS Watches For You
Technology has contributed a lot and is still contributing much to make our lives simple. It has eased communication to such an extent that we can be mobile and still stay in touch with each other. It is not only communication that is eased but a lot of other things which are more suitable to the changing needs of the fast paced individuals. One such change is in the way one used to find the directions.
Gone are the days when maps and compass were used to find directions. Although such techniques were useful but not accurate as the new age GPS system, which is the most accurate way of finding directions using a digital map. GPS or the Global Positioning System works with the help of satellites orbiting the earth and allows you to use it in many applications other than finding directions.
Although GPS is used with many applications, it has found an all new dimension when used with the wrist watch. Yes! A GPS device included in your wristwatch is not a dream but reality. With the wide use of GPS technology many tech savvy companies have tried and developed a wrist watch which is equipped with GPS. Now there are many companies which offer you a wrist watch with GPS technology.
The GPS wrist watches are meant for sportspersons and adventure buffs who want to spend more time in the open. This GPS watch is an expert navigator which can keep anyone on track in the mountains, forests, rivers or lakes without getting lost.
The GPS wrist watches are more or less like wrist computers and do have more than one set of functions. The only thing which you need to understand in these wrist watches is the limited size of the screen and restricted number of keys which means that the device must have different modes for displaying sufficient information on each topic on the screen.
The downside of such small screen is that you have to change modes al lot during complex operations. For example, if you want to access GPS and you happen to have the altitude mode on, you have to apply a fairly long sequence of keystrokes to go through the menu system. Some of the GPS watches do have as many as five different modes, which are time, altimeter/barometer, compass, GPS navigation and activity mode for measuring speed and distance.
The GPS watches are quite essential if you are planning an outdoor adventure. They are best to guide you to the location which you want to reach. They are also beneficial for trekking and mountaineering with the altimeter feature which keeps you updated on the height.
Some of the latest GPS watches also have an Activity mode, which shows you the speed, distance traveled, time from start and other values. Your trail is recorded in the device memory and this information can later be used for the Track Back function, or viewing the route at home via a PC.
For more information visit our website http://www.gps-watches.net
How To Really Win The War On Terrorism
Tom Cruise cry’s in the movie ‘Lions for Lambs’, Do you want to win the war on terror… Yes or No. The movie is good but really fluff in regards to how to really win the war on terrorism.
This article is about what major security holes that currently exist in America and finally what we need to do to really win the war on terrorism.
There are 11 Major Security Holes cited by security experts that are possible scenarios in the near future. They are found in the book by Clark Kent Ervin titled ‘Open Target, Where America is Vunerable to Attack’ published in 2006.
According to Mr. Ervin, the following areas need to be watched carefully for terrorist activities as there are many weak and vulnerable areas that could trigger another major terrorist attack.
Border Security
Aviation
Port Security
Mass Transit
Intelligence
Preparedness
The book is a chilling reminder that it’s pretty obvious that the nation is still very unprepared to respond to another catastrophic terrorist attack. If terrorists had targeted the levees in New Orleans, the government’s response would be have been no quicker and more effective than that of Hurricane Katrina. It is very important that every major city have a well devised evacuation plan.
The chain of command must be very clear. First responders must be able to communicate with each other and with state and federal officials. Drills and exercises must be conducted frequently. Lessons learned must lead to prompt corrective action.
After having said that we now present the Mobile Tactical Collaboration System ™ by Ordia Solutions. The Mobile Tactical Collaboration System ™ is enabling commanders to know where their operators are, their speed and direction of travel. Operators have an added sense of safety knowing their moves are being monitored by their command staff during high risk and high threat operations. The MTCS system gives a clear cut chain of command and allows the edge in a crisis situation.
Smaller than a set of keys, the AdvanTraq GPS Tracker which is a major component of the MTCS, can be affixed to an officer’s gun belt or radio harness, or with extended battery, to a vehicle.
The Mobile Tactical Collaboration System; integrated with advanced personnel tracking system AdvanTraq GPS deliver visual tactical interoperable communication, common operating picture, and real-time command and control situational awareness to multi-jurisdictional and multidisciplinary federal, state and local security taskforce handling dignitary protection and critical infrastructure protection at the US Naval Academy for US President George W. Bush, Israeli Prime Minister Ehud Olmert, Palestinian President Mahmoud Abbas, Middle East Quartet Envoy Tony Blair, and dozens of other world leaders at Mideast Peace Conference.
The Annapolis Conference was designated a Special Event Activity Report (SEAR) Level 2 security special event, a Department of Homeland Security designation that assesses the availability of federal, state, and local law enforcement resources in combination with the perceived threat level to the event. The State Departments Bureau of Diplomatic Security was the lead federal law enforcement agency for the Conference and worked with a multi-jurisdictional taskforce that included the US Secret Service, FBI, US Marshals Service, ATF, US Coast Guard, Maryland State Police, Anne Arundel County Police, Annapolis Police, Prince George’s County Police, Metropolitan DC Police, and other federal, state, and local agencies. The FBI contingent hosted Ordia Solutions Mobile Tactical Collaboration System throughout the conference.
Within minutes of their short MTCS orientation, several FBI operators began redrawing their sector of operation at the US Naval Academy grounds from the static, paper-based operational map they were handed to dynamic and interactive MTCS workspaces on their wireless mobile computers. AdvanTraq GPS units were assigned to several members of the taskforce both in mobile land units and aboard tactical response boats so they could be tracked in their security details inside and outside the security zone. One of the tactical team leaders was equipped with a one-pound OQO model 02, the world’s smallest full-featured ultra-mobile handheld PC, displaying his MTCS workspace.
When report of a potential threat location came to the Interagency Command Center, a quick reaction team was dispatched to investigate, with one of the members equipped with an AdvanTraq GPS unit.
The QRTs approach and return was tracked by personnel from both the ICC and Tactical Operation Center, providing added security and personnel accountability for the operators, and real-time situational awareness for commanders and other senior leadership at division headquarters.
SWAT teams tested out the Mobile Tactical Collaboration System in field conditions, both in mobile land units and aboard our tactical response boat. To put it in a nutshell, the MTCS gave authorities command and control capability that Hollywood has attributed to law enforcement tactical units for many years, but in truth we are only now realizing.
The importance of knowing, in real time, exactly where all of SWAT forces are deployed in relation to the incident site(s), infrastructure, support elements, and each other, and being able to share that common operating picture in real time with the chain of command and other agencies was critical in preventing another terrorist attack.
Best of all, personnel could brief those who needed the information without having to physically meet each time there was a change or update. With the MTCS system you just provided them with a website address, username and password.
The MTCS is a quantum leap forward in Government agencies ability to monitor and brief operations up the chain and to other agency representatives to help prevent the next major terrorist attack.
GLC Enterprises, Inc., is based in Illinois. Find Information about how Ordia Solutions and GLC Enterprises are using GPS Tracking to provide the superior Homeland Security at http://www.spygearco.com/GLCEnterprisesSupplyOrdiaSolutionsWithAdvancedGPSTrackingWithVirtualEarth.htm