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Amateur Radio, Your PC and the Internet

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Level of amateur activity has increased dramatically. ... Amateur Radio is becoming more appealing to today's Internet oriented youth. ... – PowerPoint PPT presentation

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Title: Amateur Radio, Your PC and the Internet


1
Amateur Radio, Your PC and the Internet
Presented by Wilbur Evans, KR4AD
2
KR4AD and Amateur Radio
  • Licenced since 1992 as KD4OFP
  • Active in the following areas
  • Internet Radio Linking (EchoLink)
  • PSK31, HF Packet, Radio Teletype, MT63
  • Slow Scan TV, CW
  • Mobile and Portable Operation
  • Member of OMIK - Amateur Radio Association

3
Monitoring Amateurs from your PC
  • Australian Amateur FAQ
  • http//members.ozemail.com.au/andrewd/hamradio/ha
    mfaq.html
  • Remote Bases and Web Radios
  • W7DXX Remote Base http//www.lamonica.com (RA)
  • Lots of online receivers http//www.qsl.net/oe3mzc
    /receivers.html
  • IRLP - Internet Radio Linking Project
  • Reflector 2 Live Audio http//www.live365.com/stat
    ions/253404
  • There are many more online receivers on the
    Internet!

4
The Internet Radio Linking Project (IRLP)
  • Uses the Internet to link distant radio sites
    together.
  • Gives global coverage to normally localised VHF
    and UHF frequencies.
  • Enables minimally equipped stations to
    communicate globally.
  • Allows end user control of links via their radio.

5
How Internet Linking Works
Mobile Station
Radio Link
IRLP Node
Distant Repeater
Internet
Repeater
IRLP Node
The Internet is used as a link
to connect distant repeaters together
6
Typical IRLP Node
  • Standard PC compatible is usually used.
  • Pentium P100 or faster.
  • Linux operating system.
  • Soundcard and appropriate drivers.
  • Simple hardware interface to control link radio.
  • Radio tuned to the appropriate link frequency.
  • ISDN/xDSL/cable/broadband Internet connection.

7
IRLP Reflectors
  • Enable multiple nodes to be linked together into
    a network number limited only by bandwidth.
  • Running a reflector requires very fast Internet
    access (32 kbps per connected node) to handle the
    multiple data streams. Most reflectors are
    hosted at Internet Service Providers who often
    donate the bandwidth.

8
Impact of IRLP on Amateur Radio and the Public
  • Level of amateur activity has increased
    dramatically.
  • Amateurs who have been inactive for a long time
    are coming back on the air.
  • Amateur Radio is becoming more appealing to
    todays Internet oriented youth.
  • New opportunities for experimentation.
  • Global network to communicate with ISS

9
The Future
  • Internet linking is already becoming commonplace
    over 250 IRLP nodes on air.
  • Improvements in technology will improve
    performance of links.
  • IPV6 and multicast offer more flexible linking
    with less bandwidth.
  • Technology can be ported to high speed amateur
    microwave and satellite links.

10
More Information
  • IRLP http//www.irlp.net
  • Amateur Radio FAQ
  • http//members.ozemail.com.au/andrewd/hamradio/ha
    mfaq.html
  • Online Receivers
  • http//www.qsl.net/oe3mzc/receivers.html
  • Software - http//www.muenster.de/welp/sb.htm
  • Moorabbin and District Radio Club
  • http//www.mdrc.org.au
  • WIA Victoria - http//www.wiavic.org.au/
  • Wireless Institute of Australia
  • http//www.wia.org.au

11
Demonstration of IRLP
  • What you are listening to is streaming audio
    which originates from IRLP Reflector 2, which is
    the busiest IRLP reflector in the world.
  • The URL to listen is http//www.live365.com/statio
    ns/253404
  • Or alternatively, select the Listen Live! Link
    from http//www.irlp.net.

12
Thank You
Wilbur Evans, KR4AD
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