'Mhz band' diaporamas de présentation

Communications Training Introduction to: 800 MHz Radio

Communications Training Introduction to: 800 MHz Radio. 1. Radio Communications 101. ObJectives:. A general introduction to 2-way radio communications systems Specifics of the MetroSafe 800 MHz, Regional Communications Systems (RCS). 3. Our Current System. Very High Frequency (VHF)

1.91k views • 87 slides

559 views • 43 slides

Welcome

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CHAPTER 5

CHAPTER 5. WIRELESS COMMUNICATIONS. Introduction. Wireless Communications system in which electromagnetic waves carry a signal through atmospheric space rather than along a wire

547 views • 32 slides

Standards Wars in Wireless Communications

Standards Wars in Wireless Communications. David J. Salant March, 2005. Introduction. Mobile wireless communications industry has been locked in a series of standards battles for approximately 20 years. Currently, there are over 1.3 billion people using cellular and PCS service in the world.

582 views • 29 slides

GSM Global System for Mobile Communications

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Modelling and Simulation of Conical Spiral Antennas

Modelling and Simulation of Conical Spiral Antennas. Aziz Jiwani and Shantanu Padhi. AAVP workshop University of Cambridge, UK 9 December 2010. Motivation. Most antennas are not able to maintain characteristics across >2:1 bandwidth Consider antennas having true frequency independence

1.13k views • 18 slides

Technical Issues, Due Diligence and Licensing Parameters

Auction 78 Seminar BROADBAND PCS. Technical Issues, Due Diligence and Licensing Parameters. Keith Harper Engineer Mobility Division, WTB June 10, 2008. Disclaimer.

373 views • 17 slides

Wireless Systems and 3G in the United States

Wireless Systems and 3G in the United States. Jack Deasy Chief, Multilateral & Development Branch Telecommunications Division, International Bureau U.S. Federal Communications Commission. Sydney, Australia March 19, 2001. Spectrum Management Goals. Maximize efficient use of radio spectrum

262 views • 17 slides

VHF/UHF Narrowbanding Georgia Webinar March 1, 2012

VHF/UHF Narrowbanding Georgia Webinar March 1, 2012. Federal Communications Commission Public Safety and Homeland Security Bureau. Narrowbanding Basics . Who is required to narrowband? All Public Safety and Industrial/Business licensees in the 150-174 MHz (VHF) and 421-512 MHz (UHF) bands

381 views • 17 slides

An Efficient Multi-channel Management Protocol for Wireless Body Area Networks

An Efficient Multi-channel Management Protocol for Wireless Body Area Networks. Wangjong Lee * , Seung Hyong Rhee * , Youjin Kim ** and Hyungsoo Lee ** * Kwangwoon University, Korea, ** Electronics and Telecommunications Research Institute, Korea

357 views • 16 slides

M. J. Reiner

Solar Radio Observations. Relationships to:. White-Light Observations. In-Situ Plasma Data. M. J. Reiner. Evolutionary and Source Region Models. M. J. Reiner, 1 st STEREO Workshop, March, 2002, Paris. Radio Observations Associated with Solar Transient Phenomena. time.

463 views • 14 slides

Do We Still Have a 470-512 MHz Home?

276 views • 14 slides

UMTS / 3G Wireless

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RLANs and weather radars in the 5 GHz band rev 3

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RLANs and weather radars in the 5 GHz band rev 3

287 views • 12 slides

Exhibit A

Exhibit A. FCC Spectrum Allocation of 800 MHz Band * - 1974. * - Allocation for US zone (different in Mexican and Canadian border regions). Up-Link. 808.5. 816. 821. 825. 806. 100 Conventional Channels (licensed one channel at a time). Available to commercial, internal, or

322 views • 9 slides

355 views • 9 slides

MCRDS Data Format

239 views • 9 slides

800 MHz Reconfiguration

206 views • 8 slides