introducing amateur radio to youth our experiences 2007 2014 ve3kl ve3qn
TRANSCRIPT
Introducing Amateur Radio To Youth
Our Experiences 2007 2014
VE3KL VE3QN
Carleton UniversityMini Course : Wireless Security
David Knox VE3KL Guest Speaker
• May 2007 18 High School Students• Communication Systems• Morse Code (leading to digital)• Propagation• Live QSO with Antarctica Science Station
The Morse Code
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D - ..A .-V …-E .
Radio Block Diagram Morse Code
Amplifier Switch
TransmitterCircuits
Amplifier
Receiver Circuits
Key Speaker
Radio Block DiagramSending Pictures
Amplifier Switch
TransmitterCircuits
Amplifier
Receiver Circuits
How Radio Waves Travel (Propagation)
• Ground Wave Local
• Sky Wave Long Distance
• Direct Line of Sight Satellite
Earth
Ionosphere(Amazing)
Oliver Heaviside
Ionosphere….like a reflecting cloud
Palmer Science Station Antarctica Live Voice Contact
2 Metre Radio Internet Satellite
Palmer Station
Course HighlightQSO with KC4ACC
Palmer StationOperator: Bede
2 metre IRLP via VE2CRA
A total success; talking with “Bede” was something I will always remember. “Actually, we are really happy here now, with the winds up at 90 mph and the wind-chill at minus 70 degrees…. The weather is going to change!”. David Knox
Radio BasicsCubs Orleans Ontario
Module 1 - Radio Basics2011 & 2014
VE3KL VE3QN Canada
Rob Lamontagne Cub Leader
Some slides with permission K2GW Boy Scouts of America
Topics in This Module
• What is Radio?
• Antennas
• Frequency/Wavelength.. A Challenge
• Morse Code and the Telegraph
• Send your name using Morse code
What is Radio ?
• Radio is a way to communicate from one place to another without wires.
• Radio is used everywhere around you:
Cell phones, Airplanes, TV, Hydro Meters
Weather Broadcasts here in Ottawa
Yes: Even a garage door opener uses radio
How many radios in your house? 12?
WSM Nashville TN.A Broadcast Example
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This big antenna – about 125 This big antenna – about 125 metres high – is used to metres high – is used to transmit radio waves at a transmit radio waves at a frequency of 650 kiloHertz. frequency of 650 kiloHertz. It is used by AM radio station It is used by AM radio station WSM in Nashville TN.WSM in Nashville TN.
A part of the antenna is in A part of the antenna is in the ground.the ground.
Two New TermsFrequency
Wavelength
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Wav
elength
Frequency
End of Module 1Now lets send some Morse
Code
Paddle18 wpm
EIT
Using RadiosCubs
Module 2 – Basics
Using the Radio & Safety2011 & 2014
VE3KL VE3QN Canada
Topics in Module Two
• Radio Block Diagram
• The Antenna
• How Radio Waves Travel
• Radio Safety
• Check into the QWCA Ch. 70 Net
Now lets talk on the RadioQuarter Century Wireless Association CH 70 Net
CubsVE3QNRadio #1
CubsVE3KLRadio #2
VE3IQVE3XKQCWAControlRadio VE3MPC
RadioRepeater
High Tower
Antenna
Repeater in Orleans
R
Conclusions
• Students Learn Morse Code Quickly @ 18 WPM• Students Move from Morse to Digital Easily• Many Challenging Questions • Visualizing Waves: A New Concept• Difficult to transmit/receive from CU
Vy 73 Dave and Bryan