10 Facts About Motorola

Motorola was founded by Paul and Joseph Galvin and produced one of the first commercially successful car radios in 1930. Today it is a Fortune 100 telecommunications company with an annual turnover of over 22 billion dollars.

  1. Martin Cooper was a project manager for Motorola and invented the world's first cellular mobile phone back in 1973, weighing in at almost 800 grams it is a cry from today's small and sleek handsets. However the first commercially launched handset called the Motorola Dyna-Tac was not made available to consumers until 1984
  2. The Second World War led to many innovations but one of the most useful and iconic was a mobile two-way transceiver or "Walkie Talkie" which was invented by Motorola in 1940. This particular model was called the SCR-300 and was a hefty back mounted device. It was not until a year later that the company mass produced a smaller handheld unit which they called the "Handie Talkie" or SCR-536
  3. Pagers were very popular during the 90s, but Motorola actually made the first one in 1956 which was used in hospitals to send radio messages to specific individuals
  4. Motorola also made the first cordless large screen portable television. This TV had a 19 inch screen size
  5. The company not only invented communication devices which were used on Earth, but also made the radio used by Neil Armstrong to utter the now legendary words "one small step for a man, one giant leap for mankind" back in 1969 on the Apollo 11 lunar module
  6. High definition television is very popular now but a subsidiary of Motorola called General Instrument Corporation actually proposed and launched the world's first HDTV television all the way back in 1990
  7. In 1999 the company made the iDEN i1000 plus handset, which was the first smartphone to incorporated web browsing capability, email and alphanumeric messaging.
  8. Motorola's car radios were initially sold to Police departments across America. By 1937 further communication advances enabled them to launch a two-way version which allowed Police to communicate whilst on patrol
  9. The founding company of Motorola was called Galvin Manufacturing Corporation, which was incorporated on September 25th 1928 in Chicago, Illinois. It was not until 1947 that the company previously changed its name to Motorola
  10. In 1998, Motorola was overtaken by Nokia as the world's largest seller of mobile phone handsets

Buying A Refurbished iPhone – The Advantages And What To Look For

Refurbished iPhones are loved because they are cheaper and therefore much more affordable compared to their brand new counterparts. These are phones that have had previous owners, but they have been maintained afresh by the manufacturer improving their quality and making them ready for the market again. Apart from the fact that the refurbished iPhones save money because of their affordable prices, they have a number of other advantages that make them popular.

· The refurbished iPhones come with fresh components considering that their problem areas have been looked at as well as worked on. Faulty parts are also replaced and better ones installed so that the phone functions as well as a new one.

· The software of refurbished phones is reliable. The developers handle all previous glitches making sure that every area is addressed hence you get more reliable software and hardware too.

· Because the refurbished Apple iPhones are made available from approved sellers, they tend to be more reliable and trustworthy compared to buying a used phone from a friend. The approved sellers are in close contact with the manufacturer so they are better in control as well as accountability. Your purchase is much safer when you buy refurbished compared to buying used.

Without doubt, refurbished phones do have a number of advantages and you can consider getting one, especially if you have lost your old phone or it became faulty and you do not have the cash to buy a new phone which can be expensive. But even when buying refurbished, there are critical phone areas that you ought to pay attention to.

Battery life – Even though iPhones come with an impressive battery life that can handle more than 7 hours talk time when they are new, continued use weakens the battery. Find out how many hours of use the phone has gone through and consider whether the battery has been replaced. A refurbished phone whose battery has been replaced is a much better choice because it will easily meet your needs.

Screen damage – Also important to look out for is any visible screen damage. The iPhones have extremely hard glass screens, but if the phone had no screen protector, then it is very possible for the screen to have fine scratches. Important to remember is that such scratches can interfere with proper screen reading and they can also have an effect on the responsiveness of touch screen applications. It is most advisable that you choose a refurbished phone that has a new screen or a screen whose visibility and overall performance you can rely on.

Memory capacity – Earlier versions of the iPhone have little memory and this makes it very important for you to find out the memory size of the phone before you buy. The memory should be large enough so that you can perform all tasks and also have an easy time storing applications you are interested in. Evaluate your needs and relate to the memory size before you finally make your purchase.

The History of the Tracfone Company

Tracfone, which is now one of the top 10 cellular providers in the US [as well as Puerto Rico and the Virgin Islands], has had an interesting history, as companies go. The company first made their mark in 1996, under the name Topp Telecom, Inc. Within a few years, they found themselves being supported by Mexican company Telmex, who bought a controlling interest [55%] in the company. By 2000, the company was split from Telmex, and began to grow exponentially, after taking on the name Tracfone. The company expanded its market share and began to bring in more business as the days went by.

Tracfone is now one of the biggest prepaid wireless companies in the United States. Because they enable users to buy prepaid minutes on a wide variety of phones [including hot brands such as LG, Motorola, Nokia, and Kyocera] they have become an excellent option for people who do not want to deal with the hassles of credit checks and long-term contracts with phone companies. This accounts for much of Tracfone’s success.

Unlike some prepaid cellular services – especially those in the past – Tracfone enables people to use some of the most popular phones and have all the options that a cell phone user with a standard-issue binding contract would have. As such, the company has built its stellar reputation on this. Nobody wants an inferior phone simply because they chose to use pre-paid services rather than be tied to a contract for anywhere from 12-24 months – or more.

In addition to being popular in the United States market, Tracfone dominates Puerto Rico and the Virgin Islands. Further, they are the most popular cellular provider in Latin America. With nearly 10 million customers and an always-growing, eager customer base, it is no surprise that the company has enjoyed so much success and continues to grow every year.

Tracfone actually provides two services – Tracfone and Net10. The two services are provided by the same company, with the same quality, though Net10 only offers GSM and CDMA services as of now. The company is expanding both of these services, as well as their TDMA service, despite most customers migrating to the former two.

Depending on the service that a Tracfone user chooses, as well as the specific phone they purchase, there are different deals that can be obtained by Tracfone customers. Some people who buy a plan with Tracfone will enjoy free text messaging, while others will pay a few cents per text. It is important to look at the fine details and choose a phone and plan that will work best for your needs. If you frequently text people, those few cents per text could add up, and it would be in your best interest to invest in a phone that enables you to text for free.

As you can see, Tracfone is a company that many people have come to rely on, and it is also a company with flexible options. It is the perfect choice for someone who wants a cell phone, but isn’t ready to commit a huge amount of money or time to a specific company, as Tracfone’s pre-paid plans do not require a contract. People can buy minutes for the phone based on both days of service as well as increments of time. This flexibility allows people to choose what sort of plan will best suit them and their specific needs as a customer. This is definitely part of what attracts people to Tracfone, and why the company has so many loyal customers. Their innovative way of dealing with cellular users by giving them many options is an excellent way for them to continue to grow and profit as a company.

History of RF Signal Generators

Radio frequency (RF) signal generators have been around for over 100 years. In 1901, Guglielmo Marconi performed the first radio transmission via Morse code from Cornwall, England to St. Louis. John's, Canada.

In the 1940s, Hewlett-Packard created the first mass-produced generator, the model 200A audio oscillator. The first customer for this product was none other than Walt Disney, who purchased eight of them to calibrate the revolutionary sound system developed specifically for the movie Fantasia.

Radio conductor use and development can be traced back to its roots in the electronic test-and-measurement industry.

Most Common Uses of Radio Frequency Generators

Although RF signal alternators pre-date modern digital technology, they are still used in a variety of tech and science industries in several different ways. Radio frequency signal producers are needed to operate, service and set up analog radio receivers. But it's more than that. When it comes down to it, any equipment that is radio operated required this kind of generator to fully test and ensure proper operation.

Some of the most common uses include testing components, test systems, and receivers for WiFi, WiMAX, cellular communication, GPS, audio and video broadcasting, radar, satellite communication and electronic warfare.

The ones that are used today can be found in the electronics industry, including aerospace / defense electronics and wireless communications. Radar, GPS and avionics signal simulation are other common applications within the aerospace and defense electronics field.

What is Radio Frequency Signal Generation?

Many times, radio frequency generation and microwave generation are used interchangeably. They are different, however, because they operate at different pitches.

RF and microwave generators have similar features and capabilities, but are differentiated by modulation range. RF generators typically range from a few kHz to 1 GHz, although some argument it reaches 6 GHz. The signal generation can be monitored with AM radio frequencies between 535 KHz and 1605 KHz and computer LAN rates up to 2.5 GHz.

Microwave frequencies, on the other hand, have a higher rate that typically ranges from 1 MHz to 20 GHz, with some generators reaching approximately 70 GHz.

There are three types of RF signal generators: analog signal, vector signal and logical signal. Analog generators were used before the advent of modern, digital electronics.

RF conductors are one of 5 types of generators. The other types are: functional signal, arbitrary waveform, audio signal and video signal. Each of them have their own, unique use and functionality.

How Radio Frequency Generators Work

Radio frequency generators operate via a harmonic locked loop that provides adequate, accurate and stable output required for a device to operate correctly. They produce continuous wave tones within a certain range.

These sound detecting devices have become very sophisticated since their creation 100 years ago. As they have gotten more advanced, their uses have become more widespread. They are one of five types of generators that are used in a variety of industries today.