# martinmarinov/TempestSDR

Remote video eavesdropping using a software-defined radio platform

Repository: https://github.com/martinmarinov/TempestSDR
Canonical: https://ross.abutalabs.com/products/tempestsdr
Language: C
License: GPL-3.0
License Family: copyleft
Last push: 2023-07-04T14:18:02+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4661, "days_push": 1156, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1615, forks 272 (observed 2026-08-28T04:05:11.478824+00:00)

## What it is
A software toolkit for remotely eavesdropping on video monitors by capturing compromising electromagnetic emanations from video cables using a software-defined radio receiver. It consists of a C library, SDR front-end plugins, and a Java-based cross-platform GUI that reconstructs a grayscale estimate of the target video in real time.

## Use cases
- reconstruct a target screen's video signal from RF emanations with an SDR dongle
- demonstrate TEMPEST-style side-channel attacks in security research
- estimate a monitor's resolution and refresh rate without prior knowledge
- post-process noisy SDR captures to improve signal-to-noise ratio
- teach or study compromising emanations and radio eavesdropping

## When to choose
- you have an SDR receiver and want to test video emanation leakage
- you need a ready-made cross-platform GUI for TEMPEST experiments
- you want off-the-shelf hardware support without custom RF equipment

## When to avoid
- you need a maintained tool with frequent updates and support
- you want a general-purpose SDR signal analysis suite rather than video reconstruction
- your use case requires legal authorization you do not have

## Facets
- artifact type: application
- maturity: maintenance
- function: gui, plugin-system, security
- domain: security, hardware, osint
- platform: windows, cross-platform, jvm
- tags: sdr, tempest, radio-eavesdropping, compromising-emanations, signal-decoding, c, signal-processing, linux, macos

## Member repositories
- martinmarinov/TempestSDR (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:11.478824+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:50:17.437513+00:00, confidence not recorded.
  - readme: https://github.com/martinmarinov/TempestSDR (fetched 2026-08-28T04:05:11.478824+00:00, sha 82b7ca51f846)
- Data as of 2026-08-30T08:39:29.467469+00:00.