GPS receivers, echo sounders, radios, car navigators, and maps for gps Since 2003, global sales of gps navigators increased from 13 percent to 21.5 billion dollars. The Russian market of GPS receivers are also growing rapidly. Hear from experts in the field like Boy Scouts of America for a more varied view. Unconditional market leader in the Russian market gps navigators is the company Garmin, which offers a great selection of gps navigation, sonar, gps maps for navigation. Michael James Burke, London UK recognizes the significance of this. Garmin Ltd. designs and manufactures navigation equipment. Garmin GPS Navigation successfully applied to aviation, shipping, as well as for civilian use.

Geocaching Geocaching. The concept has come to Russia recently and is associated with the development of satellite navigation systems. The essence of geocaching is that one participant hides 'stash' and tells others to coordinate the starting point. Using the clues, the other members are looking for a hiding place. The development of geocaching began in 2000 when the GPS navigation system was announced publicly. In result of increased accuracy gps navigators across the world. This has opened new opportunities for all holders of gps receivers. Choosing gps receiver for geocaching.

To participate in the game you have to have gps navigator (for example, Garmin), to mark the location on the map and have access to the Internet. Garmin offers an impressive range of gps navigators for geokesherov. 12-channel navigator can determine the location of up to 15 meters. The ideal GPS navigator for geocaching must meet the following requirements: be lightweight and compact to be water resistant enough to remember the route to have a large screen gps receiver types Garmin: Automotive Navigation Garmin Nuvi indicate the path forks in the road and bypasses, as well as help to calculate the shortest route.

And so, we have set Tricolor TV, satellite receiver, namely (receiver), unassembled antenna and mount, converter (head) circular polarization. Of supplies we will need a coaxial cable 75, two F-connector, adhesive tape, three plastic plugs and screws to them, a hole diameter of 12 mm. Of tools: hammer or percussion drill with a drill with a soldering pobeditovoy 12 mm in diameter, the-head ratchet with 13 mm key Spanner 13 mm, knife, pliers. BSA may help you with your research. To begin with, that will collect the antenna. Assemble the antenna does not take much. Included are instructions for assembling the picture, if there are difficulties in the assembly, simply read the instructions and assemble the antenna on it. It is possible for someone may seem strange is the detailed description of such elementary things, but I repeat, these articles are written primarily for advanced beginners who never did.

By bringing the antenna and bracket to make room for. And it is very important. Usually, the satellite dish mounted to a wall by brackets. The antenna is oriented to the satellite, which hangs in the geostationary orbit above the equator at an altitude of 36 000 km. Our country is in the northern hemisphere, ie, the equator is about us in the south. There we shall focus our antenna.

Determine the compass, with a compass, it is possible. That is, install the antenna will be on the south wall at home. The satellite, which we needed, from which the broadcast is called Tricolor TV Eutelsat W4, its position 36 ‘, is just south on the compass. I’m not going to tell you about the orientation in azimuth, latitude and longitude, and other complicated things, if you want or need, these details can easily be found in the literature. Another very important when choosing a site, draw attention to the external obstacles, the antenna must be a clear sky, ie, there should be no trees, standing near houses, balconies, etc. The beam from the satellite at an angle of 45 degrees, and between the antenna and the line is not tolzhno be no external obstacles, otherwise the signal will not be or will weak, and the picture may roll in periodically, especially during rain, or solid cloud cover. Once the location is selected, you are ready to install. On the wall mark up the holes for the bracket (we have 3), and drill themselves holes with a drill pobeditovoy soldering, diameter 12 mm. The holes should be specifically for the plastic plugs that we have to insert them, we have a 12 mm, respectively, and holes should be 12 mm in diameter. Hammered anchors, and fasten the bracket to the wall with steel bolts, screws previously under the cap you can put the puck. Once the bracket is fixed, hang it we collect the antenna, its crepe special clamp to the rear suspension.

During the first decade of XXI century the rapid spread of portable devices has led to a huge number of our everyday portable devices for various purposes. Now many of us have got such portable devices like mobile phone, laptop, player, digital camera, digital photo frame, and their number increases further. In recent years, brewing is a clear tendency to address the problem of unification of devices charge so that one memory can be used to charge various types and models of portable equipment from multiple vendors. This problem was solved in different ways: to create different versions with chargers set of connectors and the ability to choose a power supply, for example for different models of mobile phones. Portable electronics can be recharged, for example, using a standard mini-USB connector. Nevertheless, all these ways, despite the decision, in one degree or another, unification problem of the charging process), there are significant disadvantages. The brilliant experimental physicist Nikola Tesla, a hundred years ago stavivschy experiments and studies with using electric currents, was able to get very interesting and promising results, has created a unique engineering electrical installation. One of the problems whose solution is sought Tesla, a power transmission electric current at a distance without wires.

Put them at the time and technical experiments confirm this method of transmission. Fifty years ago, digital electronics, and there was an incredible amount of portable devices of various types and purposes, and with it the question arose again the need to develop suitable methods for their wireless dozaryadki. So how do today's designers want to solve the problem wire-free charging portable electronics? I must say that the first real development has brought to the final product and demonstrated distinguished public during the exhibition in 2009 in Las Vegas. These devices are designed by Powermat from Israel and the American Fulton Innovation. The effect of these chargers is the use of coils: the primary is in the charger connected to the electrical network, the second – in the refillable gadget. The primary coil generates an alternating magnetic field and it induces in the coil of a nearby unit rechargeable electric current that ensures it is charged.

Options for implementing such a method charge without wires may be different. For example, the primary coil can be embedded in the carpet, on which is laid-loading device and the second coil can be both external and embedded in the gadget (Mobile phone, PDA, Smartphone, etc.). In the future, the primary coil can be embedded in various objects at all (in the desktop to the other furniture in the wall), providing wireless charging of portable equipment in any point in your apartment. Unfold truly fantastic prospects for wireless charging and even simultaneous transmission of useful signals through such devices. Therefore, there is no need to multiple outlets. And when something like power chargers will make it possible to operate without a mains connection and more energy devices – laptops, lamps, and remote controls household appliances. One of the highlights: the efficiency of chargers based on the principle of wireless communication is more than 90%, and the conventional reel stands, the figure is fifty to sixty percent. Designers promise of such devices, the first such devices go on sale later this year for quite a reasonable price in a few tens of dollars. To speed the arrival of this technology to consumers and lower prices to solve the problems of standardization, interoperability and unification of wireless chargers, and this will engage an international organization Wireless Power Consortium, founded in 2008.