Portable SDR

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he PSDR is a completely stand-alone (no computer needed), compact, Portable Software Defined Transceiver (hence the name, sorta). Originally designed for backpacking use by Ham Radio operators. It includes complete coverage up to about 30Mhz (plus 144Mhz), it has a 168Mhz ARM processor, color display, and an innovative interface.Vector Network Analysis (which includes antenna analysis) and GPS functions are included.
The entire design is Open Source. The electronics are designed and laid out to be easy to understand and tinker with. In addition to source code, schematics, board layout and parts lists, articles and videos describing the theory of the design are being created.


(Click here for a PDF.)

Source code and Design Files:
All files (including the above diagram) are available on GitHub at [Tens de ter uma conta e sessão iniciada para poderes visualizar este link]

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License Information: The project code is still very much in development. It currently uses the Adafruit GFX and ILI9340 libraries (both being adapted for this application) and is likely to use other libraries in the future. I will comply with any licenses for libraries I include, and plan to license the project itself under a permissive license (like MIT) or a copyleft license like GPL. I would very much appreciate suggests on this.

About the PSDR1: There were a lot of subcircuits that I had never tested for this project (and were hard to breadboard at the frequencies and sizes involved) so I built the PSDR1 board you see here to demonstrate all those parts. I left off the easy stuff (like a battery charger, the whole GPS sub system) and a few of the more advanced parts (like the RF switching, and phase and amplitude measurement IC) Also, while the LCD module was expedient, the next version will have it integrated directly.

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COMPONENTS

- 1×STM32F429 MicrocontrollerU21 – Digikey part number: 497-14052-ND
- 1×AD8302 Magnitude/Phase DetectorU23 – Digikey part number: AD8302ARUZ-ND
- 2×AD9834 DDS Frequency SynthesizersU1, 8 – Digikey part number: AD9834CRUZ-ND
- 1×QVGA LCD ILI9340/ILI9341LCD – Search ebay for “2.2 (ILI9340, ILI9341)”
- 1×GP39-1513 GPS RecieverU4 – [Tens de ter uma conta e sessão iniciada para poderes visualizar este link]
- 2×AT42QT1010 Capacitive Touch SensorsU19, 20 – Digikey part number: - AT42QT1011-TSHRCT-ND
- 30×Other ICs and SemiconductorsSee Bill of Materials for details
- 97×Surface Mount ResistorsSee Bill of Materials for details
- 174×Surface Mount CapacitorsSee Bill of Materials for details (Do you see why I didn’t want to list them all here?)
- 23×Connectors, Inductors and Other PartsSee Bill of Materials for details


See all components:
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- Link

Muito fixe!
Super interessante!