IQ samples

Assess

Techniques

In-phase and quadrature signal samples used to represent radio waveforms digitally.

Why it's here

Placed in Assess: 1 article(s) of evidence from 1 source(s), led by research-stage coverage, with 1 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (1)

7Hacker News·10/1/2026research
ESP32 Chips Expose Hidden SDR Mode
Researchers and hobbyists found an undocumented ESP32 feature that exposes raw IQ samples, letting several ESP32 models act as limited software-defined radios. The discovery enables spectrum analysis and direction-finding experiments, while one ESP32-C5 variant and an ESP32-S31 prototype can stream IQ data more continuously for broader SDR use.