Dual band phones tend to work in the UK and Europe and most of the world (GSM 1800 and GSM 900), whilst in America you need a phone that can take GSM 1900 so most often a Tri band or Quad band phone is the best option.

Dual band refers to the radio frequencies which your mobile phone can operate on. The three international frequencies ranges or bands reserved for GSM are 900MHz, 1800MHz and 1900MHz. In Australia, most GSM networks use the 900MHz frequency band although some networks are now using the 1800MHz frequency band also. See similar questions...

You can get a dual band antenna that will cover all 3 modes (analog, digital cellular and digital pcs) or, as mentioned above, focus on where you're having reception problems. First find out what network your phone is actually using in your city by calling your service provider. Just ask if you're in a 800MHz range area or 1900MHz range area. See similar questions...

These terms define the working frequencies of GSM cellular phones on particular networks. There are 3 working frequencies - 900/1800/1900. GSM phones that work on 2 frequencies are called dual band while those that work on 3 frequencies are called tri-band. This facility allows the user to use his/her cell on different networks, and beneficial for international roaming. See similar questions...

Most RFID devices are single mode of operation devices. This means that they operate at a specific frequency for both transmitting and receiving data (or commands). Almost all passive devices are single mode. For instance operation at 13.56 MHz or 868/915 MHz means that the devices are commanded at this frequency and modulate a return signal at the same frequency. Semi-active devices are generally single frequency devices but use a battery to boost signals. See similar questions...

Dual band refers to cellular telephones that are able to operate on two different frequency bands, such as GSM 900 and GSM 1900. If a phone has dual band capability, it automatically scans for the strongest signal and switches Networks - even during a call within the same operator's Network. See similar questions...

Some titles are presented on DVD Video in a "Dual Ratio" format - that means you are given a choice of viewing the film in either the "panned and scanned" or "Widescreen" format. This can be done by either using a double-sided disc (one version of the film on each side) or a dual-layer disc (where you would use the interactive menu to select your viewing preference). Storage capacity and timing factors are usually the main determinate of using the "dual ratio" format. See similar questions...

Dual-Fuel can be defined as the simultaneous combustion of two fuels. In the case of the Dual-Fuel System, natural gas is utilized in conjunction with diesel fuel to operate the engine. After conversion, the engine is able to operate on either 100% diesel fuel, or alternately, on a mixture of diesel fuel and natural gas. At no time is the engine able to operate on natural gas exclusively. See similar questions...

A dual rated heater can be wired to either of the 2 voltage ratings listed on the product identification label. However, the wattage output will decrease with the lower voltage. For example: A 240/208 dual rated heater can be wired to either a 240 volt or a 208 volt supply. A 1500 watt fan heater will draw 1500 watts wired to 240 volt and 1125 watts (75% of 240 volt rating) wired to 208 volt. See similar questions...

It is called a Dual Agency when an agent, brokerage or company is representing both the buyer and seller. Although legal, dual agency nevertheless comes with an inherent conflict of interest as the agent attempts to fairly represent two opposing clients and collect the full commission. Buyers: Consider working with a buyer's agent who represents you exclusively (not both you and the seller) and is more likely to work with your best interests at heart. See similar questions...

A tri-band phone operates at three supported frequencies, such as 900/1800/1900 MHz or 850/1800/1900 MHz. A dual-band phone operates at two frequencies, such as 850/1900 MHz or 900/1800 MHz. See similar questions...

This means that you have seen all the questions in a particular question pool or set of Topics. The website will continue to drill you on the questions you have already seen. If you have not yet subscribed to the system, this message indicates that you have seen all the "free stuff". See similar questions...

The term "pass-through" mode refers to the EthIR Switch's ability to provide connectivity for infrared AND Ethernet connections, however there is a difference. See similar questions...

Oi! means "hey" and came from a greeting term among the working class of England in the late '60s and soon became our style of music, since it represents the white working class. One of the most legendary bands is Skrewdriver founded by Ian Stuart, the grandfather of all skinheads. By a tragic twist of fate, he died in '93, but his music lives on now & forever and can be pretty much be found anywhere they sell WP CD's & tapes. See similar questions...

Tracking a band means that we will notify you any time that tracked band has a show near you. Show notifications and tour updates for all of the bands you track will be included in one weekly email. See similar questions...

Dual-language instruction refers to learning all academic content in two languages. Our students develop speaking, reading and writing ability in both English and Spanish. See similar questions...

With your Thuraya satellite phone and Thuraya SIM, you can make calls via satellite from anywhere within the coverage area. You also have the option of roaming from Thuraya into a local GSM operator given that Thuraya has established a roaming agreement with your local GSM operator. With your Thuraya satellite phone and GSM SIM, you will be automatically accessing network. Hence, your calls will be billed on your normal GSM bill. See similar questions...

Dual Mode Data, like Dual Mode cellular phones, is a data connection technology which allow your cellular PC Card to switch, along with your phone, between analog and digital modes allowing connections under either network. See similar questions...

In dual-engine mode, it is possible to open session files from two speech recognition engines simultaneously for use with file comparison techniques to edit text. See similar questions...

Dual mode provides the ability to achieve one-on-one tag communication and control. This "singularity" is absolutely essential if 99.9% reliability is to be achieved under all conditions. Conversely, the ability to affect a broad area of control and communication is also necessary and this attribute is achievable through a dual mode of operation. The RF mode enables long distance read/write and also the ability to channel data into secondary RF, such as WiFi networks. See similar questions...