Transmitters
Course Guide Topics
Duty Cycle
CW [A1A]
AM [A3E]
SSB [J3E]
FM [F3E] (1)
FM [F3E] (2)
Digital
CW Transmitter
Master Oscillator
Buffer / Driver
Power Amplifier
SSB Transmitter
SSB Generation (1)
SSB Generation (2)
Mixer
Linear Amplifier (1)
Linear Amplifier (2)
FM Transmitter
FM Generation
Frequency Multiplier
Power Amplifier
Tx Characteristics
Non-linearity
Output Impedance
Output Power
ERP – Effective Radiated Power
Key Clicks & Chirps
Spurious / Unwanted Radiation
HF Station
High Power Linear Amplifiers
Linear Amplifier (1)
SSB signal passes through buffer/driver stage to Linear Power Amplifier
Must be linear Class A (efficiency up to 30%) or, more efficiently, AB1, AB2 ( up to 60%)
Care needed with high duty cycle modes not to exceed power rating
Course Guide Topics
Duty Cycle
CW [A1A]
AM [A3E]
SSB [J3E]
FM [F3E] (1)
FM [F3E] (2)
Digital
CW Transmitter
Master Oscillator
Buffer / Driver
Power Amplifier
SSB Transmitter
SSB Generation (1)
SSB Generation (2)
Mixer
Linear Amplifier (1)
Linear Amplifier (2)
FM Transmitter
FM Generation
Frequency Multiplier
Power Amplifier
Tx Characteristics
Non-linearity
Output Impedance
Output Power
ERP – Effective Radiated Power
Key Clicks & Chirps
Spurious / Unwanted Radiation
HF Station
High Power Linear Amplifiers