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Digital Signal Processing

KK7P DSPx DSP Module / KDSP10 Interface Adapter

The DSPx is a fully wired and tested Digital Signal Processing (DSP) Module suitable for DSP development and learning, as well as embedding into your own projects.

The DSPx is fully compatible with the W7PUA DSP-10 2-meter Software Defined Radio ...Read more

DSP General Information Have you noticed how everything is becoming digital these days -- DSP filters, DSP modems, DSP transcievers and more -- and for good reason. Digital representation of signals over their analog counterparts have many advantages. Digital Signal Processing is so pervasive in everything an amateur radio operator does and it is becoming an important tool. These web pages are designed to introduce amateur experimenters to DSP. They will point you to the many resources on the web and provide a forum for amateur DSP experimentation. Learn more about DSP and how to get started...Read more

Learning DSP The DSPx plus KDSP10 are useful as a DSP learning platform. You can perform experiments in the new ARRL publication Experimental Methods in RF Design, Chapters 10 and 11. One good place to start is The ARRL Handbook. It has an entire chapter on DSP written by Jon Bloom, KE3Z. Another place to start is text books. Texts are excellent sources of information on DSP. They range from introductory to advanced levels. There are a number of ways to get started including commercial equipment, evaluation modules or starter kits, building a kit... Read more

ALEF NULL DSP4 The DSP4 card is a product of the Alef Null group and is a general purpose signal processing card, dedicated mainly to the amateur use. In amateur world, the main benefit of using DSP comes from the easy modification. A signal-processor based DSP hardware can be programmed for different circuits. For instance, the same hardware can generate all possible modems for all known amateur modulation standards (or in theory at least). ... Read more

DSP-10 (SDR) The DSP-10 is an amateur-radio, software-defined 2-meter transceiver that can be built at home. It operates on SSB, FM and CW modes. Features are tailored to operation with weak signals on VHF, UHF and Microwave frequencies. The transceiver is low power, about 20 milliwatts, but there is provision for adding an 8-Watt amplifier... Read more

Digitial Voice Digital voice is voice (analog) communications that has been digitized (analog to digital) and transmitted digitally over radio using a modem. The receiving station receives the digital signal and converts it back to analog (digital to analog).... Read more

EVM Interface In 1998 TAPR designed a radio interface kit with enclosure for the EVM called the EVM-RI. It provides the necessary circuitry to interface the EVM to a transceiver and can be programmed as a KISS modem. The EVM-RI is based on Johan Forrer's, KC7WW, radio interface described in his QEX article, Using the Motorola DSP56002EVM for Amateur Radio DSP Projects... Read more

DSP Book References A comprehensive lists of books and references for the amateur radio experimenter wanting to learn more about Digital Signal Processing. Hyperlinks on titles will take you to the publishers web page that will describe the book in more detail. At the end of the list are some book stores available from the web that specialize in technical books. Following the bookstores are a list of publishers available from the web. ... Read more

DSP Presentations Listen to talks and presenations on DSP from TAPR conferences. Talks by Tim Bagget, AA5DF, Johan Forrer, KC7WW, Tom McDermott, N5EG, and others on topics such as DSP in HF Communications Systems and developing amateur radio DSP technology. ... Read more

EVM56K for Amatuer Radio This article is about the Motorola DSP56002EVM, a low-cost, powerful DSP evaluation module (EVM) intended for those experimenting with digital signal processing (DSP). It is ideally suited for filtering CW and EME signals, audio processing applications such as denoising and autonotching and DSP modem work for HF digital and VHF/UHF modems for use in terrestrial and satellite applications. I'll cover hardware and resources for application development and present a collection of advanced DSP applications ready for amateur experimentation... Read more

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