Wireless Networking Complete 452 pages | Dec 12, 2007 |ISBN:0123750776 | PDF | 8 Mb Given the explosion of new wireless communications techniques and the host of wireless network technologies and applications currently available or on the drawing ..... The Metal Detector is of great use for security as we find it on Plateforms, Airports etc. The opera- tion of the Metal Detector circuit is based on superheterodyning principle which is commonly used in superhet receivers. ...
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