Radio frequency

It indicates the radio frequency band utilized 2.5GHz for IEEE 802.11b, IEEE 802.11g, or IEEE802.11n, and 5GHz for IEEE 802.11a [20]. Most buildings like a University or an office building have already distributed WiFi hotspots that provide whole building coverage as network…

decades ago in 1973. Cell phones transmit and receive radio-frequency electromagnetic waves which are the weakest waves in the electromagnetic spectrum with the lowest frequency but the biggest wavelength in the spectrum. This type of electromagnetic radiation is less dangerous than higher frequency electromagnetic radiation at immediate contact as it is non-ionizing however there has been debate over the long term effects of radio-frequency waves on the human body, particularly those which are…

As much as I believe, to buy all these things together (excluding the headphones and the tools used), you need to spend 10-30 dollars in India, it will go to 1,000 rupees. Radio receiver module is commonly found in the $ 10 and a maximum of about 500 rupees. All electronic items are worth $ 8-10 and 250-300 rupees. The male and female jack and the cable and antenna will make $ 10 product structures. And if you're buying new…

compared to the universe that can be explored with a Hubble telescope and the radio telescope. Space craft and technology provides the world with astronomical information, discovering information that is beyond our capabilities on Earth capabilities to discover with our eyes alone. Two major telescopes that have been in orbit around the Earth’s Atmosphere discovering new information are the Hubble telescope (Optical) and the radio telescope (Non-optical). Optical telescope are used to focus…

used within hospitals which uses a scanning technique to show detailed images of the inside of a human body. There are two ways which an MRI scanner takes images of the human body. The two ways are the use of a strong magnetic field and the use of radio waves. There are two ways which MRI scanners work and the first is by hydrogen atoms. How this links within the human body is by the main link of hydrogen protons which are within water molecules. And a common fact of the human body is that it is…

monitor the baby. The MRI has a strong magnetic field. Which can be dangerous. Your doctors will tell you how to prepare for one. MRI has this powerful magnetic field called radio waves. Then you might ask what are radio waves. Radio waves are electromagnetic wave of a frequency between about 104 and 1011 or 1012 Hz. Radio…

children’s toys. The frequency of a Bluetooth device is 2483.5 MHz. That is really high compared to an FM radio at 108 MHz. Are Bluetooth devices important? To some people, yes, to some the answer is no. Other devices use wires or cables to transmit information. Bluetooth devices don't use anything other than radio waves. Bluetooth devices are made to relay information from one electronic device to another electronic device over short distances. Cell phones, for example, use radio waves too,…

different types about privacy around the globe. The main topic was Radio Frequency Identification Tags (RFID). The topic entirely went into detail about how it knows almost everything about a person or company. This Chapter reveled benefits, effects of technology being in our private lives and the change it has had on our society as a whole. Radio Frequency Identification Tags (RFID) transfer data is it attached to. Therefore, uses radio waves to track and identify from a person or objects. The…

1. INTRODUCTION Figure: Wi-Fi logo Wi-Fi stands for wireless fidelity. Wi-Fi is the wireless network that used to connect the internet without wires. It’s based upon the radio technology. Many computers can be connected to each other through Wi-Fi and we can share files data and many of the other things through Wi-Fi. A Wi-Fi network operated just like a wired network, but without the restriction of wires, it not only enable user to share the data but it also provide easy connection to the…

Number stations are short wave radio stations that broadcast a series of numbers, bleeps or encoded messages reportedly to spies during the Cold- War era. However there is no proof whatsoever to what purpose they serve. The codes that were emitted by the radios were said to only be able to be translated that day, as the source of the code or the ‘crack’ would often change. These are real and can be found throughout the internet. They cannot be traced and never have. The code 15728 repeated over…