D-Vision SDR: Ukrainian Pocket Receiver Shows Russian Drone Feeds

How it works

The D-Vision SDR is a software-defined radio, meaning most of its work is done in software rather than fixed hardware. It scans frequencies from 500 MHz to 8.7 GHz and turns the signals it finds into video on a screen. The developers say it covers the whole range without blind spots and is more sensitive than competing detectors. Because the logic is in software, it can be updated when Russia changes its drone specifications.

Reported range reaches up to 10 kilometers for analog video between 540 MHz and 6 GHz, falling to 3.5 to 5 kilometers at higher frequencies. The device is passive: it only listens and emits nothing itself.

Weight is its main selling point. At about 290 grams, it is less than half the weight of its main Ukrainian rivals: Babai's Vydun 7.5 (roughly 900 grams, up to 7.5 GHz), Contra-drone's SENSE-4 (600 grams, up to 8.2 GHz) and BlueBird Tech's Chuyka 3.0 (up to 650 grams, upgradable to 8.8 GHz).

It also sweeps the 4.1 to 4.5 GHz band, which Russia's Molniya attack drones began using for video in June. Radio specialist Serhii "Flash" Beskrestnov, an adviser to Ukraine's president, said then that most detectors "don't see these frequencies or see them poorly".

Limits

Beskrestnov warns that digital video could replace analog, making portable detectors and fixed analog receiving stations ineffective. Digital transmissions are harder for many receivers to decode, and fiber-optic drones send nothing over the air to intercept. Russia is also designing variants with video that is harder to hack. The New York Times reported in August that some Molniya drones are AI-guided, use Nvidia chips and emit no signal at all.

The receiver is part of a growing set of cheap, passive Ukrainian sensors that work alongside radars, acoustic sensors and interceptors rather than replacing them.