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DDS – Almost Built
Image by P^2 – Paul
This is a direct digital synthesis (DDS) radiofrequency signal generator built around an Analog Devices AD5932, and controlled by an Atmel ATMEGA168.
It’s a kit, available from Doug Pongrance, N3ZI, www.pongrance.com.
It’s intended as a flexible local oscillator for home-brew ham radio receivers, but works just fine as just a general-purpose high frequency signal generator.
Missing just a couple of configuration jumpers here, it’s almost ready for the smoke test.
ECS in final configuration
Image by jnalexander