Quadband Phones
Quad band phones are mobile phones that can carry four frequency bands. Mobile phones transmit data via airwaves at various frequencies to facilitate communication. Regrettably, mobile communication is not possible for communication devices operating at different frequency bands for GSM (Global System for Mobile Communications). These frequency bands refer to the extent or reach of mobile phones allotted by the International Telecommunication Union (ITU).
Acquiring quad band phones can come with very high costs. However, frequent international travelers may find quad band phones cost effective because quad band phones have more than two frequency bands. As such, quad band phones are ideal for roaming, as frequency bands vary from country to country. Hence, quad band phones are convenient for business people and professionals who do a lot of traveling. In addition, the usage of quad band phones allows subscribers to pick up better signals in a particular country. In spite of this, people who are thinking of buying quad band phones have to determine first whether quad band phones are what they really need. They must evaluate the usefulness of quad band phones versus the regularity and destinations of their travel. Quad band phones may also be referred to as the "World Phone".
How do quad band phones work?
Quad band phones can function in four frequency bands: 850 MHz, 900 MHz, 1800 MHz and 1900 MHz. In Australia, the frequency bands used are 900 MHz and 1800 MHz. Since mobile phone communications occurs through air waves but only within the same ranges, an ordinary mobile phone brought for travel to countries using 850 MHz and 1900 MHz will not be useful. Quad band phones can pick up signals on all four bands. This means that when a subscriber uses international roaming services when he or she goes to several countries using the four different frequency bands, his or her quad band phone will pick up the signal clearly. This will enable the subscriber to get network coverage and use the network's mobile phone services.
Why do you need quad band phones?
The obvious advantage of using quad band phones is that it allows you to use your mobile phone in four frequency ranges. If you do a lot of international travel, getting a quad band phone may be best for you. Of course, before planning to buy a quad band phone, you need to identify which countries you often go to and how often you travel. If you are visiting countries operating in frequency bands similar with that of Australia (900 MHz and 1800 MHz), you may want to think twice about buying a quad band phone, as they can be highly expensive.
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