TITLE

Friend and foe

AUTHOR(S)
Wiesenfeld, Ira
PUB. DATE
May 2009
SOURCE
Urgent Communications;May2009, Vol. 27 Issue 5, p30
SOURCE TYPE
Trade Publication
DOC. TYPE
Article
ABSTRACT
The article explains the proper use of tower shadowing in radio engineering. It states that engineers use the tower shadow to protect against interference to and from other systems and the antenna must be placed at the top of a tower with no other antennas nearby. The tower can be used to shadow the signal in the direction of the co-channel system and to shield one system from another on the same tower by placing the antennas on opposite sides of a structure.
ACCESSION #
39790775

 

Related Articles

  • Choosing a WiMAX Base Station Antenna. Wilson, Scott // Antenna Systems & Technology;Sep/Oct2008, Vol. 11 Issue 5, p14 

    The article discusses factors to be considered in choosing a WiMax base station antenna. A discussion on the challenges of signal propagation at 2.5 gigahertz is presented. Techniques to overcome signal propagation issues are mentioned. The key design considerations when deploying macro cells at...

  • Polarization Transformations of Probing and Echo Signals of Radio Frequency Identification. Vershinina, A. S.; Kulakov, S. V.; Moskaletz, O. D. // Information & Control Systems / Informazionno-Upravlyaushie Sist;2013, Vol. 63 Issue 2, p2 

    There have been studied polarization transformations of signals of radio-frequency identification systems in a propagation medium and receiving antenna. There have been entered polarization spectra of vector signals. The method of researching is based on representation of polarization...

  • Evaluating the Performance of Absolute RSSI Positioning Algorithm-Based Microzoning and RFID in Construction Materials Tracking. Truijens, M.; Wang, X.; de Graaf, H.; Liu, J. J. // Mathematical Problems in Engineering;2014, p1 

    High accuracy of construction materials tracking with radio frequency identification technology (RFID) is challenging to achieve. The microzoning method consists essentially of an absolute received signal strength indication (RSSI) positioning algorithm on the basis of measuring the distance of...

  • Reconfigurable Instrumentation Technologies, Architectures and Trends. Ursˇicˇ, Rok // AIP Conference Proceedings;2002, Vol. 648 Issue 1, p179 

    Reconfigurability is liberating radio-based instrumentation devices from chronic dependency on hard-wired characteristics of the radio front end. Today the evolution toward practical "reconfigurable" instrumentation is accelerating through a combination of approaches. This evolution is...

  • Multimegawatt solid state rf driver for generating rotating magnetic fields. Slough, J. T.; Slough, J.T.; Miller, K. E.; Miller, K.E.; Lotz, D. E.; Lotz, D.E.; Kostora, M. R.; Kostora, M.R. // Review of Scientific Instruments;Aug2000, Vol. 71 Issue 8 

    A radio frequency (rf) system using solid state switching has been designed and constructed that is capable of driving a pair of loop antenna with a circulating power of 60 MW for millisecond pulses. The primary application of this system is to produce an oscillating magnetic field in the...

  • Forecasts are Best Guesses -- Here's Why It Pays to Listen. Hallas, Joel R. // QST;Jan2014, Vol. 98 Issue 1, p60 

    The article presents questions and answers related to amateur radio including is it possible that multiple kilowatts of radio frequency energy contributed to ionization of the F2 layer and is there any truth behind the full power theory for antennas.

  • The FARApole. Valdes, Jim // More QRP Power: The Best Recent QRP Articles from QST & QEX;2006, p6-4 

    The article offers instructions for building a Falmouth Amateur Radio Association FARApole portable high frequency antenna.

  • Erratum to: Optically reconfigurable Sierpinski fractal antennas for RoF based communication systems. Yazgan, Ayhan; Kaya, Haydar; Cavdar, I. // Telecommunication Systems;Aug2015, Vol. 59 Issue 4, p551 

    A correction to the article "Optically reconfigurable Sierpinski fractal antennas for RoF based communication systems" that was published online on January 7, 2015 is presented.

  • Optimizing the Reception of Signals Emitted by Ultrashort-Pulse Antennas. Bakhrakh, L. D.; Izrailovich, M. Ya. // Doklady Physics;Jan2004, Vol. 49 Issue 1, p43 

    Describes procedures for the solution on problem on the basis of employing variational methods. Presentation of functional diagram of a signal-emitting and signal-receiving system based on an ultrashort-pulse antenna; Analysis of the input signal of the antenna; Determination of the optimal...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics