| Synopsis |
This book combines Digital Signal Processing (DSP) and Software Defined Radio (SDR) principles into a single, readable, book and uses that knowledge to build the T41-EP; a 20W, HF 7 band, CW/SSB Software Defined Transceiver (SDT) with features not always found in commercial radios costing ten times as much (e.g., up to 192kHz spectrum display bandwidth). The T41-EP is a self-contain SDT that does not require an external PC, laptop, or tablet to use. The T41-EP is powered by the powerful Teensy 4.1 microcontroller, which is programmable using the free Arduino IDE. The EP stands for Experimenter's Platform because the T41-EP is designed around 7 small printed circuit boards. You can easily swap out our PCBs for boards of you own design if you wish. The small board sizes allow you to take advantage of the special prices offered by most PCB fabricators. Because the T41-EP project is completely Open Source, you have access to the C source code that controls the T41-EP as well as the hardware schematics and Gerber files (for making your own PCBs). If you wish, pre-fabricated PCBs with all SMD devices already on the board are available as a semi-kit from 4SQRP (see http://www.4sqrp.com/index.php for details). |