
Portapack h1
portapack-mayhem/mayhem-firmware
The firmware for the HackRF+PortaPack H1/H2/H4/H4M
KiCad boards from 29 GitHub repositories tagged “sdr”, the most starred first; open any of them in PCBKit.

portapack-mayhem/mayhem-firmware
The firmware for the HackRF+PortaPack H1/H2/H4/H4M


rfquack/RFQuack
RFQuack: the versatile RF-analysis tool that quacks!

Stefan-Olt/MISRC
MISRC Is a multi channel RF capture device for FM RF, S-Video, CVBS RAW capture and anything else, but intended and supported for the decode family of projects vhs-decode, ld-decode, hifi-decode.


AndersBNielsen/PhaseLatchMini
High-rate continuous streaming of interleaved dual ADC (I/Q) samples over USB Full‑Speed (FS) using only the built‑in CDC class on an STM32F103C8 ("Blue Pill" style) board.

oscimp/oscimpDigital
OscillatorIMP ecosystem for the digital characterization of ultrastable oscillators and Software Defined Radio (SDR) frontend processing


oscimp/amaranth_twstft
Software Defined Radio implementation of a Two Way Satellite Time and Frequency Transfer signal

osmocom/osmocom-analog
Software Implementation of analog cellular telephony systems like NMT, TACS, IMTS, A/B/C-Netz; mirror of https://gitea.osmocom.org/cellular-infrastructure/osmocom-analog


umbertoragone/usbc-rtl-sdr
A PCB adapter board to convert your RTL-SDR V3/V4 dongle from USB-A to USB-C

Sev5000/RP2350B_DualADC_DualPCM
A PCB to neatly package a rp2350b with two 12bit high speed adc and four channel audio input for use with hsdaoh

Sev5000/Pico2_12bitADC_PCMAudio
PCB to neatly package a Raspberry Pi Pico 2 with an AD9226 12bit ADC and PCM1802 for capture with HSDAOH

zsellera/openstint-transponder
Reference design of OpenStint transponder with ATTiny816



mangobanaani/cirradio
Tactical UHF FHSS mesh radio: Zynq-7045 + AD9361, SystemVerilog RTL, C++20 comms stack, AES-256 PKCS#11 crypto

antonjan/IQ_Modulator
IQ Modulator for 2M and 70cm from I2C and ALSA PCM Audio on Orange PI Zero (Estimated TX Power 500mW)

meshsat/meshsat-fieldkit
MeshSat field kit hardware: the V1 kits as built, the V2 carrier PCB set for the Peli 1450 and the compact pocket-sized node (KiCad and OpenSCAD sources, generators, release files, build guides).



ajisrawi/passive-radar-counter-drone
Passive radar for counter-drone using DVB-T, 4G and 5G: simulation, receiver hardware, FPGA micro-Doppler firmware, antennas, enclosure

Aliou8/SAHEL-SPECTRA-RF
CubeSat for educational purposes. It is based on an STM32H7 MCU for data handling and uses two CC1125 radios for communication. The software is developed using a Zephyr-like RTOS.