Introducing Amateur Radio To Youth Our Experiences 2007 2014 VE3KL VE3QN.

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