Content for DDS


Direct digital synthesis (DDS) is a method employed by frequency synthesizers used for creating arbitrary waveforms from a single, fixed-frequency reference clock. DDS is used in applications such as signal generation, local oscillators in communication systems, function generators, mixers, modulators, sound synthesizers and as part of a digital phase-locked loop.

How to Use Arduino DDS Frequency Signal Generator AD9850

“In this Tutorial we will learn how to make a Frequency Signal Generator using a AD9850 module and Arduino. Watch the Video! Note: I managed to get frequency up to +50MHz but the signal quality gets worse with the higher …

HF Antenna Analyser With Arduino and DDS Module

“In this Instructable I’ll show you how I built a low-cost antenna analyser which can measure an antenna and display its VSWR over any or all of the HF frequency bands. It will find the minimum VSWR and corresponding …

Build your own cheap antenna analyser

“Ham radio is the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, etc. Developing a ham radio project may requires using an antenna analyser, a device that is used for measuring input frequency …

10 Resister Arduino Waveform Generator

“The circuit implements a 6-Bit Digital to Analog Converter (DAC) using a 8-4-2-1 Resistor combination. Arduino Uno Output pins 13 to 9 form the 6-Bits PB5 to PB0.”