Choose a suitable Digital Radio for yourself
2008-08-20

                                                                                                  Choose a suitable Digital Radio for yourself       DSP, or Digital Signal Processing, is the processing of signals by digital means.       DSP technology is nowadays commonplace in such devices as mobile phones, multimedia computers, video recorders, CD players, hard disc drive controllers and modems, and will soon replace analog circuitry in TV sets and telephones. An important application of DSP is in signal compression and decompression. Signal compression is used in digital cellular phones to allow a greater number of calls to be handled simultaneously within each local "cell". DSP signal compression technology allows people to talk to one another.       With the ever-growing popularity of DCP technology, the emergence of digital radio is also reasonably.       According to the usages, digital radios could be divided to two types: One-way digital radio and Two-way digital radio.       One-way radios are those used for broadcasting, such as table-top radios, portable radios and clock radios and so on.       On the other hand, A two-way radio is a radio that can both transmit and receive (a transceiver), unlike a broadcast receiver which only receives content. And a mobile phone or cellular telephone is an example of a two-way radio that both transmits and receives at the same time. It uses two different radio frequencies to carry the two directions of the conversation simultaneously.       Different models of digital radio have different features, so check the product descriptions carefully to make sure that any model you are considering has the features that you want. Features may include: 1. Preset stations: Most models of DAB radio allow you to program your favorite digital radio stations as presets, so you don’t have to spend time searching for them. 2. RDS Display: RDS stands for Radio Data System. RDS signals transmit encoded data that means that your radio will display the station name and automatically tune into the strongest signal for your chosen FM station. Some radios using RDS also allow you to program your radio to switch to traffic updates when they are broadcast. 3. Pause and Rewind: Some models of digital radio allow you to pause or to rewind live radio programmers. This is a really useful function as it means that you won’t miss your favorite programmed if you have to answer the telephone or want to make a cup of coffee. 4. Electronic Programmed Guide: Some DAB radios have an Electronic Programmed Guide, or EPG, that shows programmed listings for radio stations, usually for the next seven days, so that you can plan your listening schedule. 5. USB connector: Some models of DAB radio have a USB connector so that you can download software updates as they become available. 6. Built-in CD player: If you enjoy listening to CDs as well as radio programmers, it may be worth buying a model with a built-in CD player. If you are likely to want to listen to CD-Rest and CD-Rows as well as standard CDs, check the product description of any model that you’re considering to ensure that it can play these formats. 7. Clocks: Many models of DAB radio have built-in clocks, and some have alarm functions, so if you want a versatile radio for your bedroom, it might be worth buying a model that has these features. 8. Line-in: Some Digital radios have a line-in so that you can connect your iPod, CD player or Minidisks, essential if you are likely to want to record your favorite radio programmers.       Before you buy digital radios, you should consider the radio which radio features are you concern most, after that, you can also choose the size and the shades which you like most, The battery backup feature is also one you'll want to look for in case of a power outage, and then you will choose the most suitable product for yourself.