|Radio>>How a WiFi Radio Works ?|
== What is a WiFi Radio Or Internet Radio ? ==
A Wifi Radio is also called Internet Radio, it is a radio receiver that receives station that broadcasting over the internet. Most of the radio is built with a WiFi connection to the internet, so it is called WiFi Radio. More than 20,0000 radios all over the world can be found on the internet, most of the current AM, FM stations are broadcasting in a traditional way "On Air" as well as on the internet, so you have a chance to listen to these stations from the internet.
What is the difference between the Traditional Radio and WiFi Radio? A traditional radio receiver is built with a demodulator that receiver the signal from the broadcasting, there are two forms of modulation Amplitude modulation and Frequency modulation, so we call them as MW and FM. In MW, you have Media Wave (AM)(520-1710Khz), or Shortwave (SW), (3.00- 30 Mhz), in most countries; FM covers a range of 88.5Mhz-108Mhz, either AM or FM, they can travel over 200 miles ( 360 KM), FM goes not more than 100 Miles in most area ( Depends on Terrain), so you have no way to listen a station over that range; but the SW signal goes far due to the ionosphere or F Layer reflection, but it is not stable due to the changing of the clouds and atmosphere, so the SW receiver has had time to receive the stations that travels over a half global to you, So, no matter AM/FM or SW, even LW, they can not be heard over a long distance. But the WiFi radio can receive all of them. WiFi radio receives stations as long as that station is connected to internet, so the WiFi radio is much better in receiving station than the traditional radio can do.
How the internet radio works ?
Internet radio or WiFi Radio is built with different modules. Different factories use different solution to build up their radios, so the chips used inside radios are not the same. There are a few parts in the radio: 1. Internet connection, 2.Codec for the streaming data from the URL 3. Amplifier 4. Speaker. It streams in the data from the url and plays back in the speaker. Most WiFi radio need a portal support to stream in the station. The portal website stores hundreds thousands station that the radio will retrieve from it. Different brand radio uses different portals to have their stations supported. Most popular portals are like www.iradio168.com, www.reciva.com, etc. all of them will support over 10,000 stations, but they focus on different regions in the world. The popular Kaito IR168 radio streams in more stations from Asia, like China and Korea while Reciva keeps more station in Europe. Most of the WiFi radio is built with a feature called UPnP. It enables you to play back the music stored on your computer, but the computer has to be connected on the local LAN.
How to use the radio ?
It is easy to use the radio. Just connect the radio to high speed internet via WiFi or RJ45, the built in menu will take you to the station in a few steps. The Kaito Radio streams in over 400 stations from China while Reciva can do only 100+, but they all can streams in over 10,000 stations and grows everyday. The Reciva Grace radio integrates Pandora to the radio that enables you to play the music from your Pandora account.
The Kaito WiFi radio gives more choices to users that they add favorite station to the category they can load in at the first beginning. The Kaito WiFI radio is built with a SD card too, so you can play back MP3 music direct from the SD card. You can direct select a station by using the remote control that comes with 0-9 numbers. The Kaito IR-168 produces stereo sound, so it has an outlet that can connect to the separate speaker to make stereo sound from the radio.
The WiFi radio is a Wireless radio that can receive stations from all over the world through the high speed internet.