double-band telephone communication system
11Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… …
12IPhone — Infobox Mobile phone name = iPhone image size = 200px manufacturer = Apple Inc. carrier = Portal:Apple Inc./iPhone Carriers available = Original: June 29, 2007cite news|url=http://www.mp3newswire.net/stories/7002/iphone line.html|title=Steve… …
13Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …
14DCS 1800 — Global System for Mobile Communications Cette page concerne la norme GSM, pour l appareil homonyme voir téléphone mobile. Générations et normes de téléphonie mobile 0G PTT MTS IMTS AMTS 0,5G Autotel/PALM ARP 1G NMT AMPS Hicap CDPD Mobitex DataTac …
15GSM 900 — Global System for Mobile Communications Cette page concerne la norme GSM, pour l appareil homonyme voir téléphone mobile. Générations et normes de téléphonie mobile 0G PTT MTS IMTS AMTS 0,5G Autotel/PALM ARP 1G NMT AMPS Hicap CDPD Mobitex DataTac …
16Opérateur de téléphonie mobile — Global System for Mobile Communications Cette page concerne la norme GSM, pour l appareil homonyme voir téléphone mobile. Générations et normes de téléphonie mobile 0G PTT MTS IMTS AMTS 0,5G Autotel/PALM ARP 1G NMT AMPS Hicap CDPD Mobitex DataTac …
17PCS 1900 — Global System for Mobile Communications Cette page concerne la norme GSM, pour l appareil homonyme voir téléphone mobile. Générations et normes de téléphonie mobile 0G PTT MTS IMTS AMTS 0,5G Autotel/PALM ARP 1G NMT AMPS Hicap CDPD Mobitex DataTac …
18International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …
19iPhone — This article is about the line of smartphones by Apple. For other uses, see iPhone (disambiguation). The iPhone 4S, the most recent generation of the iPhone iPhone models …
20Defence Research and Development Organisation — Sanskrit: बलस्य मूलं विज्ञानम् Strength s Origin is in Science [1] Agency overvi …
