• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
14 Chris Sullivan: Ham Radio: It's not about talking to pork products (but we're working on that)
 

14 Chris Sullivan: Ham Radio: It's not about talking to pork products (but we're working on that)

on

  • 2,051 views

Amateur radio is still alive and well, and coming into the 21st Century as a playground for the technically curious. In addition to the work hams do in disaster relief communications, there is a lot ...

Amateur radio is still alive and well, and coming into the 21st Century as a playground for the technically curious. In addition to the work hams do in disaster relief communications, there is a lot of place for experimentation and learning. Ham radio is pushing the envelope in digital voice communications, high-speed "Internet" over incredible distances, and providing a fertile playground for the technologically curious. Understanding our wireless world and how it works starts with an entry-level ham radio license: where you take it from there is up to you..

Statistics

Views

Total Views
2,051
Views on SlideShare
2,051
Embed Views
0

Actions

Likes
0
Downloads
14
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    14 Chris Sullivan: Ham Radio: It's not about talking to pork products (but we're working on that) 14 Chris Sullivan: Ham Radio: It's not about talking to pork products (but we're working on that) Presentation Transcript

    • Ham Radio: More Than Talking to Pork Products Chris Sullivan, NØDOS
    • What is Amateur Radio? The legal version: quot;... A radiocommunication service for the purpose of self-training, intercommunication and technical investigations carried out by amateurs, that is, duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest.quot; -FCC Rules, Part 97
    • What is Amateur Radio? My version: Geeks playing with radio.
    • It's supposed to be a technologist's playground. It's supposed to be about learning new things. It's supposed to be about fun. When was the last time the government did something specifically for techno-geeks to play around?
    • Who are these people?  It's a conspiracy!
    • We all know this about ham radio, right? Disaster communications (OR/WA floods, Katrina) Talking to distant places It must be cool, it's big in Japan!
    • DIY is alive and well in ham radio Even today, the homebrew scene is alive in amateur radio.
    • Experimentation is encouraged. You are encouraged to try different things, test theoretical designs and experimental equipment, hack, turn knobs, and generally try to break things. And yes, void your warranties.
    • The Distant Past (the early 1990s) Packet Radio gave slow (typically 1.2k/sec) access to the early Internet It didn't stop there.
    • WiFi.. across miles, not feet Channel 1-6 is in ham radio spectrum Hams are using off-the-shelf hardware Homebrew and commercial amplifiers add range 90 mile WiFi?
    • Montana MultiMedia Network First experimental link was mountain top to mountain top, Red Lodge to Crazy Peak, near Bozeman MT.
    • The most amazing thing? IT WORKED. 2-4 Mb/s, 90 miles
    • 1.2k/sec.. 1200 baud.. remember those days? Google's new Latitude service? Hams were doing it in the 1990's APRS uses GPS, packet radio to transmit positions to other hams, the Internet
    • APRS - Brightkite, unplugged. APRS can relay more than location: telemetry, weather information, short SMS-style messages.. all automatically!
    • And guess what? It does all of this using 1200 baud modems, the likes of which were quot;obsoletequot; in the 1980's. A modern modem is 50x faster, and that's WAY slower than most people's Internet connection now a days... yikes!
    • It's just the tip of the iceberg. Amateur Television quot;Impossiblequot; communications - slow modes near noise floor Experimental modes Software-defined radios Store and forward packet radio Talking to the International Space Station / Space Shuttle Amateur radio satellites Earth-moon-earth and meteor scatter Portable communications Microwave and Nanowave Light beam communications Narrow-bandwidth digital voice Auroral / coronal discharge Radios in used pork product tins Talking to arrogant windbags on 7.290 MHz
    • Modern Ham Radios The basement room of equipment? Largely gone!
    • There are a few rules. No commercial use No profanity Stay in our yard Don't be a jerk.
    • There's plenty left to do! It's never been easier to get started No more Morse code requirements Basic electronics, operational knowledge
    • Longer notes, pointers to more information at my website: http://nødos.org/#ip5