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HF Transmitter
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Home
Overview
Times
Place
People
Richard
Peter
Owen
Paul
Willson Hunter
Weather Pictures
Satellite
The Space Segment
>
VHF Transmitter
HF Transmitter
Command System
Telemetry System
HI Keyer
Battery
Orientation System
Intialisation
Structure
The Ground Segment
>
Broadcast System
Data Collection
Commands
Publicity
Testing
Balloon Testing
>
Weather Balloon Flight
Hibal Flight
Chamber Testing
Flight
Aftermath
Our Lives
Links
Prototype HI Keyer
HI Keyer Block Diagram
The HI Keyer was built using discrete transistors in RTL (Resistor-Transistor Logic) and hence the use of NOR gates.