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Building a modular transmitter.

I obtained my ham radio licence more than twenty years ago and until recently, I had never build a radio transmitter. But all than will change. I will divide the transmitter design into seperate basic building blocks, and each block gets its own video. In no particular order: the PLL, the VCO, the modulator, the digital controller and much more.

2021-10-20

The design of the PLL
The design of the frequency divider
The design of the mixer and reference oscillator
The design of the VCO

Images

Schematic PLL

PDF version

Schematic frequency divider

PDF version

Schematic of mixer and reference oscillator

PDF version

Schematic VCO

PDF version

Documentation