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Recommended reading: KonCEPT page 84-144 (chapter 3)

Draw a superheterodyne TRX on the black board. Including antennas and propagation.

Explain from TX to RX

• DAC which stands for Digital to Analog converter.
  • Audio BW: 300-3000 Hz
• Pulse shape filter (LP)
  • Show other filter symbols
• Mixer → BP filter
• Oscillator
• Amplifier
• Mixer → BP filter
• Oscillator + Frequency multiplier
• Power amplifier (PA)
• Antenna

• Antenna
• Low noise amplifier
• The rest of the superheterodyne receiver
• ADC which stands for Analog to Digital converter

Explain what is heterodyne/homodyne

Direct converting (DDS) radio and direct sampling.

Mention the SDR lab. Ask if people can bring own SDR or radios.

https://sk6ag.org/sdr-mottagare/