ICTP - URSI SCHOOL ON DIGITAL AND MULTIMEDIA COMMUNICATIONS USING TERRESTRIAL AND SATELLITE RADIO LINKS 12th February - 2nd March 2001 , Trieste (Italy)
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	Laboratory Diary: thursday 22nd february

                   Laboratory Diary: thursday 22nd february
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Date: Fri, 23 Feb 2001 03:06:53 +0100 (CET) 
Prepared by: Samuel Adesoji Aderinto <aderinto@ictp.trieste.it>  


LABORATORY DIARY FOR 22/2/01


 1. INSTALLATION OF WIRELESS NETWORKS
   
    Exercises on networking and subnetting continued this morning with
   C.Fonda practically demonstrating the configuration of WAVELAN card
   in one of the subnet routers in order to establis a link with the main
   router.This activity was aimed at creating another subnet from one of
   the four subnets established yesterday.This exercise was on till about
   the break time and it was quite motivating and challenging.
  
 2.  DIGITAL DIVIDE AND WWW4MAIL
     The afternoon session resumed with a lecture taken by E.Canessa.
   He explained digital divide to mean those who have and those who have
  not the access to the net.He cited the case of an industrialised country
  like America,that the better educated Americans are more likely to be
  connected to the net,while wealthier schools are more likely to be 
  connected than the poor schools,the solution to remove this divide is to
   incorporate issues such as creativity,training,security and open source
   in order to move the world forward.
   He also explained that www4mail programs allows retrieval of web pages,
   filling of web forms(get or post),on-line browsing,downloading of web
   pages,searching of database via e-mail etc. He described www4mail as
   an instructive example of a technological solution that directly
   addresses the disparity in access to information.He gave examples
   on the usefulness of the www4mail server as:-
     (i) Gaining in-house technical expertise
     (ii)Aid to research activities


    We were taught how to use the www4mail server to obtain useful
informations  for research activities and other matters of interest.Cummulative per-
 centage of population by age of Latin Americans was given to observe
  the percentage of internet users between the old and the young people.

 3. ANTENNAS AND RADIO MEASUREMENT
    Different types of antennas and radio equipment were shown to us by
    C.Fonda.Thereafter,we observed the the performance characteristics of
    cables connected to the spectrum analyzer,we discovered that cable
   loss was more on longer cables than shorter ones.He latter tested the
   transmitting  power and the receiving power of different antennas
   weretested to observe their performance characteristics.The exercise
 was  really revealing and we all  seemed  enjoy it.

    This exercise continued till the the close of the day.

    Samuel
                                                                    

updated 23 February 2001, © 2001 ICTP-ARPL, HTML by cfonda