db21280711
This alternative footprint does not have three mounting mechanical holes. This will make the jack body 0.5 mm higher, making it better aligned with the center of the 3.5 mm jack. |
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| parts | ||
| photos | ||
| .gitattributes | ||
| .gitignore | ||
| audio.kicad_sch | ||
| connectors.kicad_sch | ||
| display.kicad_sch | ||
| fp-lib-table | ||
| keyboard.kicad_sch | ||
| LICENSE.txt | ||
| linht-hw.kicad_pcb | ||
| linht-hw.kicad_pro | ||
| linht-hw.kicad_sch | ||
| linht-hw.pdf | ||
| mcm-imx93-pinout.md | ||
| mux.kicad_sch | ||
| power.kicad_sch | ||
| README.md | ||
| rf.kicad_sch | ||
| soc.kicad_sch | ||
| sym-lib-table | ||
LinHT-hw
Open-source hardware, Linux-based, SDR handheld transceiver. OpenHT successor with greatly simplified hardware - no FPGAs involved. This project offers a replacement board for the Retevis C62 radio, greatly expanding its capabilities.
Hardware
The device uses an MCM-iMX93 System on Module (SoM) running Linux. The RF front-end is based on the Semtech SX1255. The chip is used as a complete IQ modulator/demodulator, allowing for true all-mode support.
Resources
CPU:
- Dual-core ARM Cortex-A55 @ 1.7GHz
- ARM Cortex-M33 coprocessor @ 250MHz
- Floating Point Unit
- ARM Ethos U-65 microNPU (Neural Processing Unit with Tensor Flow Lite support)
Memory:
- 2GB LPDDR4
- 64GB eMMC
RF:
- 500kHz bandwidth complete IQ transceiver
Software
Developers can use C/C++/Python as well as (or in conjunction with) GNU Radio flowgraphs. Tools such as gcc are built-in. The Linux image will be published later.
Supported modes (so far):
- M17 - transmission and reception,
- TETRA - reception only,
- Demo 64QAM transmission at 2Mbps
Other modes can be added later (analog FM/AM/SSB, FreeDV, APRS, etc.).
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
