Bruce Walls asked:


MiniDV: Since its launch in 1966 miniDV has become the standard format for consumer and semi-professional camcorder users and is still the standard that other formats are judged by. The tape format produces the best picture quality and PCM stereo sound of CD quality and can record 60 minutes at the best quality.

MiniDV camcorders use tapes roughly the same size as a box of matches. This has enabled camcorder manufacturers, over the years, to reduce the size of the camcorders to their present ‘pocket size’.

Recorded footage can be transferred from the miniDV camcorders by one of three different ways. Firstly as an composite analogue signal using composite AV leads, secondly as an S-video analogue signal and finally as a DV signal.

The DV signal is transferred using the DV-out port also known as a Firewire port, or IEEE1394 and also as i.Link and connected to your computer by a Firewire cable. When transferring your footage by this method there is no loss of quality in the picture and audio and this is what makes this format so popular.

Almost all miniDV camcorders have a DV-out port and better quality ones will have a DV-in port for transferring edited footage back to your camcorder. Although other formats are gaining in popularity miniDV still has plenty of life ahead of it yet and the camcorders are good value for money.

DVD: DVD is increasing in popularity and claiming a bigger slice of the market since its introduction in mid 2001. The main advantage of DVD camcorders is convenience. Record your footage to the disc, remove it and play it in your DVD player without the need for cables or connections.

DVD camcorders use 8cm discs in a variety of recordable formats. DVD-R is a single use disc, compatible with all DVD players and used by all camcorder manufacturers. DVD-RAM is a rewritable disc that offers in camera editing and supported by Hitachi and Panasonic. DVD-/+RW is another rewriteable format and is supported by Sony.

Originally there were disc compatibility issues with DVD players but most DVD players will now play a variety of discs and some camcorders offer multi format capability making them more flexible.

DVD camcorder performance has improved tremendously since its introduction but still has disadvantages. Discs can only record 18 minutes of best quality video and editing is not as easy as miniDV but for easy of use DVD format is a fine choice.

HDD: Hard disk drive is the latest format to be used in camcorders. Originally introduced by JVC but now promoted by other manufacturers. Hard drives are currently as large as 30GB and can store 35 hours in standard recording mode and up to seven hours in best quality mode.

HDD camcorders are yet to match the quality of miniDV camcorders but their performance is still impressive and no doubt will get better still. With virtually no moving parts HDD camcorders are very compact and could well replace miniDV as the main format.

One obvious failing with HDD camcorders is once the hard disk is full the footage must be downloaded or over written. This may not be a big problem unless you are on vacation for some time and away from your computer.

Memory Card: Camcorder manufacturers have been providing a digital stills function with their camcorders for some time now. The stills are recorded on a memory card of one sort or another which fit into a card slot in the camcorder. Cameras are now being offered that record video footage to memory cards

Memory cards are normally only 1GB so quickly fill up even though the video is stored in highly compressed MPEG4 format. A good supply of cards are required for any long recording. However this format is convenient for posting to the internet or sending via email. Due to the compression the picture quality is inferior to other formats.

As the video is stored to card or memory stick the memory card camcorders are generally the smallest type on the market and are suitable as a pocket camcorder. Ongoing developement has already lead to MPEG2 video format as used by DVD and HDD camcorders. The SDHC card has recently been developed offering sizes up to 32MB.

Shruti Singh asked:


 

 

GPS Navigation system offers you map- making, land surveying and helps you in determining current location. It is also used to determine locations, speed, direction and time. This is a US based technology, which is used in mobile phones and in cars as well. This system can been used free for civilian use and this is considered as one of the greatest advantages of GPS. GPS navigation system has become a widely used tool to navigate worldwide. It also helps you in other applications like: scientific study of earthquakes and synchronization of telecommunication networks.

This GPS Navigation system comes in two types, first is hand held and other one is auto mobile. It works through satellite and relay connectivity to the global receiver and identify receiver’s location on the earth. It is an auto mobile device used for air plane and boat from, where anyone can identify the location in no time. The Global Positioning navigation system has lot of other features too. It can show you the location, the time, the distance, and also suggest you perfect turns for your desired destination.

Through this fast navigation system facility, you can reach to an accurate destination where you want to. This is the most short cut method, because the map program can measure the perfect contrariety between current and your desired location. Most people do not install GPS system in their vehicles because they fear of technology. With a little practice and use of this device, you will get used to it and even feel glad to implement GPS in your vehicle.

Now, this has become a highly used feature in every mobile phone. You can solve your all navigation queries with the help of Bluetooth GPS receiver. Bluetooth GPS receiver, coordinates with mobile phone and fetches all the information from satellite and gives it back to the mobile phone. It can connect you with the whole world and make your location hunting much easier. So, if you are going to any place, don’t worry about the location. You just need to carry this navigation device with you and you cannot lose your way. Without seeking the service of a guide, you can easily explore the cities with the help of GPS.

 

 

 

 

Peter Sicoli asked:


Handheld GPS navigation systems, auto navigation systems are popular items that are being used by everyone from outdoors enthusiasts to average drivers. There is a whole lot of power and capability packed into a GPS navigation system. They are linked to complex satellite systems in outer space, providing a reliable navigational system to users on earth. Many new cars have GPS navigation systems included as standard equipment.GPS navigation systems or a go one auto navigation systems are the “must have” tech toys for just about everyone this year, yet with so many models in the market place, how do you decide which one is best for you?

So simply, a GPS is an electronic device that can determine one’s precise location on earth. GPS is the short form of Global Positioning System. This very large navigation system was developed and implemented by the United States’ Department of Defence. The primary function of a GPS receiver is to pinpoint its actual location on earth using the signals it intercepts from GPS satellites. To do this, the GPS receiver must be able to locate and intercept signals from three or more GPS satellites. After intercepting the signals, GPS receivers use basic principles of mathematics called triangulation or trilateration to compute its actual position.

A GPS navigation system will save you money at the fuel pump. Imagine, no driving around hoping to find your destination. No more stopping in the gas station to ask for directions. How about arguing in the car…you should have turned left not right or stop and ask for directions. You know we have all been there. It’s already known that GPS devices can help you drive more efficiently, as well as saving you a lot of money on gas. Driving these days can get very expensive when it comes to gas prices, so buying a GPS Device can help cut down on those prices, and even in some cases find out the lowest gas prices in the area! If you have been holding back in previous years, now would be the perfect time to buy a GPS device of your own. While prices on gas have gone up, prices on GPS devices have come down.

A couple of key points when selesting a navigation system include but are not limited to:

Make sure the GPS has at least 5 million points of interest as this will aloow you to find stores, restaurants and other businesses by name. You also can input points of interest manually if you want.

It also nice to have a brand with an interface that is simple to use. The more user friendly the interface, the more frequently you are apt to use it. So look for a good interface and an attractive design like the Tom Tom Go One.

You also will want to see which maps are included. Be sure the GPS navigation system has the map of your country included. Imagine buyinf a Go One with a map of the US and Canada, but you live in England, oops. On that note, make sure your GPS can update with a new map because what if you move to the US and yours has a map of England, oops again. Most will allow you to update the map, just be sure,

New technology has given us wonderful gifts and powers over the years beyond imagination. A GPS navigation system or an auto navigation system is one of those technological wonders that is so accessible and of great interest, that millions of people use them on a daily basis. If you travel locally or across country, or enjoy exploring the great outdoors or even enjoy a round of golf, pick up a GPS navigation system and you’ll always be able to find your way home. You can learn more about GPS navigation systems at youronesearch.

 

 

 

Verona Raymond asked:


GPS navigation systems are becoming a really nice tool to have when traveling.  Without one, you drive into new areas and have no idea where to find anything.  Too much traffic and it can get very stressful!  I remember getting lost in Tijuana a few years ago after driving down the coast of Baja. Not a pretty experience especially since I don’t speak Spanish.  Because of that vacation, I came home very tired and a nervous wreck! Not just because of getting lost, but trying to drive there through the Southern California traffic!  I’m just not used to it, being from a less populated area.

Today, travel is easy with the new GPS navigators. There are quite a few different models to choose from.  Voice recognition help keep your hands on the wheel even more while you get verbal easy-to-understand driving directions.  With options of different languages or accents, GPS navigators will tell you specific street names with speed limits that are shown on the screen when driving major roadways.  Ask it “Where am I?” and it will provide the nearest intersection so you stay on track.   Some GPS systems are equipped with Bluetooth® for hands-free calling…very helpful when you are busy eating pretzels and car snacks! 

Video games can be played with some GPS models and then your passengers will have something to do on long trips to help ease the boredom.  Or use the MP3 player feature and watch and listen with a photo viewer. 

Your navigator will inform you about the gas prices at certain destinations, so you can have more money for the fun stuff!  When traveling across the borders, the currency converter will keep you informed of today’s rates.     

There’s no need to get caught in a blizzard in the winter time either!  Your GPS will keep you on top of the weather.

There is one option I couldn’t find on GPS systems at first, which was radar detection or a fuzz buster feature.  Then I discovered that you can import custom points of interest on some GPS models that other people have compiled.  They include police camera locations and speed traps.  Just simply load that information into your GPS and you’ll be alerted before you head into a trap.  Of course I really don’t need that feature, because I drive the speed limit, well most of the time.  Okay, I may need it because of not knowing a particular area and the speed limits!   

In the world of these advanced GPS navigators, the roads should be a lot more safe and calm. Because having a GPS system would enable everyone to easily navigate to their destinations, and create much less stress. 

Road rage will become a thing of the past!  Yes, and there are unclaimed fortunes in Nigerian banks too.

Mrlee asked:


GPS Navigation has now become the buzzword when it comes to trekling guides. The GPS in GPS Navigation stands for the worldwide Positioning scheme, which is to time, the only functional worldwide Navigation Satellite scheme in the world. As trekling guides, GPS Navigation schemes are accurate, gaining and very thorough, beating hardcopy maps in language of information and content, as well as with the packing and unpacking portion of trek maps and guides.

GPS Navigation successfully manages through the coordination of satellites orbiting the sphere. GPS Navigation Receivers, which are the earth permanent plans in GPS navigation, synchronize with 24 channel Earth orbiting satellites, allowing GPS Navigation Receivers to ascertain its strict scene, as well as its flow bearing and the quickness it is vacant, or slightly the quickness, scene and bearing the abuser-on-hand with it is vacant.

Officially named NAVSTAR GPS, the total portion of GPS Navigation was urban by the United States Department of excuse, and was named as such by John Walsh, one of the key steering board members of the cast. The satellites, which are crucial to the successful process of GPS Navigation, are maintained and managed by the United States Air cogency 50th hole Wing, figure about 750 million US Dollars a year. As an article, GPS Navigation is considered as a shared good, and is accessible for each, for navigational use, and other non-threatening activities.

As an aid to navigation excursions, GPS Navigation organisms justly function well. It mainly utilizes three or four of the twenty four satellites vacant on a channel Earth orbit, to triangulate a GPS Navigation receivers scene. GPS Navigation organisms are also very valuable for map-making excursions, land surveying casts, and other commercial and scientific land surveying activities. As time-to-incident references GPS Navigation schemes are also very valuable, particularly when chatting about earthquakes, as well as with time-synchronization casts of telecommunication companies.

GPS Navigation Receivers are the end-abuser border for the GPS organism. These receivers manage with an receiver permanent to the signals imminent from the satellite, or the satellite organism. These GPS navigation receivers are regularly described by the number of channels one variety could nickname. The number of channels a GPS navigation receiver ropes, says a lot about the number of satellites the GPS navigation receiver could actually join to, or observe, simultaneously.

These living GPS Navigation receivers come integrated with different skin, the most admired of which would be mp3 audio sort live capabilities. Most GPS Navigation receivers also come with sort based maps, which come in usable when plotting a trekers course.

All in all, when it comes to trekling, the use of a GPS navigation receiver would deeply enhance stuff for trekers.

When we learn, we continue on a path of growth. Therefore, learning about this subject has already helped you more than you know.

Megan Brown asked:


A GPS Navigation Device can be used for anything from giving you directions, finding fish, tracking your your child, and even on the golf course. There are different types of GPS navigation devices, such as GPS Systems for your car to map your route, Marine GPS Systems that are able to give topography and water depths, Amber Alert Systems and many more.

A GPS Navigation Device has become a necessity for many people because of their numerous advantages. They can tell you where something or somebody is, and they are now being installed in cell phones or laptops and come in handheld units, in addition to the traditional fish finder in a boat, or car mapping GPS systems.

There are several makers to consider when you are looking for a GPS Navigation Device. One of the leaders in the market is Garmin, who has been manufacturing fish finders for a number of years. Other names are Nokia, TomTom, Magellan and Amber Alert Child Tracker, just to name a few, in this growing market.

The advantages of a GPS navigation device are varied, depending on the use. You can use it to keep from getting lost, for hiking and camping, driving across country, improve a golf game, find fish, navigate through the ocean or track your child, wherever they may be.

Some of the automobile GPS devices may include a voice feature telling you where to turn to get to your destination, so you don’t have to drive and fumble with a map at the same time. On your cell phone, it is a handy feature that can turn an average cell phone into an information center to find the nearest restaurant, store or gas station. You can have an amber alert tracker on your child whether he is out in the yard playing with friends, or in a theme park.

Because a GPS navigation device has become more affordable, it is becoming a common tool for many consumers. It is invaluable for salespeople, who have to make personal sales calls to businesses all over town or all over the country. When you are on vacation, a GPS navigation device can save you countless hours of taking a wrong turn and ending up going the wrong direction.

Professional fishermen have used them for years to find the topography and “dots” that indicate schools of fish. They can auto-pilot a boat, using a GPS navigation device to navigate any waterway they are on. A cell phone can become a GPS tracking device that can indicate your exact location, or that of friends and relatives, when programmed to do so.

Global Positioning Systems or GPS navigation devices have opened the door to more efficient ways to keep track of your loved ones, find your way when lost, or just find the nearest gas station. Many consumers have found them to be an invaluable tool once they have learned to use them for many different purposes. There are so many different makes and models that you can find one to suit your needs, whatever they may be.

Jeff Sanders asked:


Jeff Sanders

Garmin GPS Navigation Systems

http://www.GpsFrontier.com

04/05/09

GPS Navigation Systems have come a long way

Gps systems have come a long way since they were first designed for the US millitary. The first signal from NAVSTAR 1 was received on Feb. 22, 1978. NAVSTAR 1 was launched from Vandenberg Air Force Base in California and was the first of 24 satellites that make up the Global Positioning System (GPS). The first generation of satellites that make up the Global Positioning Systems 24 satellites were launched between Feb. 22, 1978 and Oct. 9, 1985. Since it First became operational the Global Positioning Systems has revolutionized the way America goes to war and provides a GPS system in which the world relies on for precise navigation.

The Global Positioning System’s constellation of orbiting satellites is managed by the United States Air Force 50th Space Wing. The unit is the host wing at Schriever Air Force Base, located in east Colorado Springs, Colorado. They are responsible for tracking and maintaining the command and control, warning, navigational, and communications satellites for Air Force Space Command as well as the Global Positioning System satellites. Full Operational Capability was declared by NAVSTAR in April 1995 (NAVSTAR is an acronym for NAVigation Satellite Timing and Ranging, and is the official U.S. Government name given to the GPS satellite system).

The US government granted the Global Positioning System available for civilian use in the late 1980s and with no subscription fees or setup charges to use the GPS system the civilian GPS market exploded, especially in the last decade. A new generation of sophisticated GPS satellites are replacing the older satellites and there are now 34 GPS satellites in orbit that provide combat capability for military applications and aircraft navigation aids. Civilian applications include ATM’s, bank and stock market transactions as well as power grid management. Currently 31 of the 34 GPS satellites in orbit transmit navigation and timing signals to civilian and military users around the world.

Gps for civilian use

The civilian GPS system wasn’t always as it is today and the US military is still keeping the most accurate Global Positioning Systems available classified for national security. But GPS upgrades for two new civilian signals to enhanced user accuracy and reliability, particularly with respect to aviation safety were planned in 1998. Then on May 2, 2000 “Selective Availability” was discontinued as a result of the 1996 executive order, allowing users to receive a non-degraded GPS signal globally, and in 2004 QUALCOMM announced the successful tests of assisted GPS for mobile phones that led the way for the GPS aided cell phones that are widely used today.

In 2005, the first third generation GPS satellite was launched and began transmitting a second civilian signal for enhanced user performance. Then in September of 2007 the Air Force completed a four-phase transition of the Global Positioning Systems ground segment to it’s new Architecture Evolution Plan. The ground segment’s provide command and control of the satellites and generates the navigation message for satellites to broadcast to the users GPS device to calculate their earth’s position. The new Gps satellites include new high-powered, anti-jam military-code, along with other accuracy, reliability, and data integrity improvements for both civil and military users. This modernized version of the world’s greatest free utility was designed to ensure the US has the most precise and secure positioning, navigation and timing capability through 2030.

Europe and Russia develop their own GPS

In 2004 the United States signed an agreement with the European Community establishing cooperation with Europe’s planned Galileo system. Galileo is a global navigation satellite system (GNSS) that is currently being built by the European Union and is separate from but complimentary to the United States Global Positioning System. The European Union’s Galileo system should be operational by 2013. The European Community’s political aim is to provide an independent GPS system that the European nations can rely on in times of war or political disagreement, because both Russia or the USA could disable use of their national systems by others (through encryption).

The Russian GPS system GLONASS is a radio-based satellite navigation system that was developed by the former Soviet Union and now operated for the Russian government by the Russian Space Forces. Like the European GPS system the Russian GPS system also functions separate from but is complimentary to the United States Global Positioning System. Russia began launching satellites for their GPS system into space on October 12, 1982 and was completed in 1995. The system rapidly fell into disrepair fallowing the collapse of the Russian economy but in 2001 the Russian government began restoring the system with hopes of restoring global coverage by the end of 2009.

GPS Systems today

Depending on the GPS unit a GPS receiver only needs a signal from 3-4 satellites to calculate the units position and will work in any weather conditions, anywhere in the world, 24 hours a day. There are no subscription fees or set up fees like with a cell phone to operate GPS receivers and although some GPS receivers have extra features like real time traffic updates that will have a monthly charge, some GPS receivers like Garmins Nuvi “T” series come with free live traffic for the life of the unit. Today’s GPS is extremely accurate thanks to their parallel multi-channel design. Garmin’s 12 parallel channel receivers are very quick to lock onto satellites when first turned on and they maintain a strong lock even in dense foliage or city’s with tall buildings because they continuously track signals from up to 12 satellites at any given time. Even if a 12 parallel channel GPS receiver loses signals from 8 satellites at once it will still function properly.

WAAS (Wide Area Augmentation System) was developed by the Federal Aviation Administration to augment the Global Positioning System to improve its accuracy, integrity, and availability. WAAS was originally intended to enable aircraft to rely on GPS for all phases of flight, including the precision approach to airport’s within its coverage area. All though originally intended for aviation most GPS receivers today are WAAS-enabled including automotive, boating chartplotters and hand-held units. WAAS uses a network of ground based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites’ signals. Measurements from these reference stations are routed to master stations and then they send correction messages to geostationary WAAS satellites. Those satellites then broadcast the correction messages back to Earth, where WAAS-enabled GPS receivers use the correction data while computing their positions to improve accuracy. WAAS enabled GPS receivers are accurate to within 3 meters and that make them the most accurate GPS receivers for civilian use on the market today. In fact a WAAS-enabled GPS receiver can even give you directions right down to the lane your car is traveling in (as long as the mapping program supports “lane assist” directions) and With no additional equipment or fees required to take advantage of WAAS-enabled GPS receivers they are becoming as common as cell phone’s.

Clint Jhonson asked:


When driving, having a GPS navigation system seems to be one of the best things that ever happened to you. Such ingenious devices are quite easy to use, making the whole driving experience even more interesting. They come with an entire set of cool features and have genuinely affordable prices.

If you are interested in purchasing such a device, then you should know that there are many great offers to be found online, starting with Magellan GPS systems. Functional for every driver, such a GPS navigation system impresses through the wide display and user-friendly interface. The display is of course a very important factor when it comes to a GPS; this is the reason why the latest Magellan GPS units have a 5’’ display.

Thanks to the latest technology, the display of the GPS navigation system offers high-quality viewing during any period of the day. The same quality of display is offered during the night. And if you are worried about traffic conditions, then you need to know that Magellan GPS comes with a FM traffic receiver. You are informed about any changes in traffic, benefitting from real-time information. So, you see, not only does the GPS lead you to the destination but also provides useful data regarding blockages or building up on the road.

GPS navigation can also help you when you are traveling in unknown parts of the world. A guide travel is one of the many attractive features of modern Magellan GPS units. This means that you are offered all the information you need regarding hotels, places to eat and even assistance in case something wrong happens to the car. As you probably know, any GPS navigation system has integrated a specific number of maps. All the user has to do is enter the destination and the functional Magellan GPS will take him/her to the specified address. It can even suggest a route to that address.

There are many interesting features that separate Magellan GPS from other existing navigation systems. One of the most absorbing is the ‘quick spell’. Having such a feature, the GPS navigation unit will help you arrive to the destination faster, even if you do not know the route exactly. You will hear the device offering instructions as you approach the destination of choice, announcing the name of the streets to your own advantage. What happens if you take the wrong turn? Don’t worry. The GPS navigation system will start route recalculation and take you to the address you’ve entered in the first place.

Most GPS systems are not able to calculate routes for multiple destinations. Having Magellan installed as your GPS navigation system, you can be certain that you will arrive wherever you want without problems. Online, you can also discover the technical specification for this GPS system, including the material from which the case is made and available memory. Magellan is provided with pre-loaded maps for the United States and Canada, plus Puerto Rico. These maps are stored on a SD card and they can be accessed quite easily through the GPS navigation menu.

Upon purchasing a GPS navigation system, you will also be provided with a traffic kit and cigarette lighter adapter, among other useful accessories. Magellan has an accuracy varying between 3 and 5 meters, with a battery life that can guarantee full functioning for three hours. Having such a device installed on your car, you will be able to travel to unique destinations and enjoy the road to the fullest!