DRT 1301C

Survey Equipment

“No noisy fan to give it away”

Review by Jennifer Lynch

Senior Staff Attorney, Electronic Frontier Foundation

Are you trying to monitor a huge political protest? Look no further than DRT. Nicknamed “dirt boxes,” these devices can locate up to 10,000 targets and can process multiple analog and digital wireless devices all at the same time. They’re even capable of intercepting and recording digital voice data. The best thing about the devices is the fact that no one may ever know you’ve used one. Just be careful — if your targets do figure out you’ve used a DRT box, and you haven’t gotten a warrant, they may be able to convince a judge to throw out all the evidence you’ve collected on them after you used the device. The smaller 1301C model has advanced passive cooling technology, meaning there’s no noisy fan to give it away.


The DRT 1301C provides a miniature, yet powerful, surveillance capability against a variety of analog and digital wireless standards. It extends the capabilities of previous DRT systems. It incorporates advanced passive cooling technology eliminating the need for a noisy fan.

Limitations and Planning Factors

- Software configurable to process various wireless standards. Processes multiple formats simultaneously. - DF option available. - INMARSAT software is available - Provided expanded frequency coverage and bandwidth - Designed for harsh environments - 8 full Duplex or 16 half duplex conversations simultaneously - 20 MHz to 3000 MHz - Weight: 10.5 pounds


Digital Receiver Technologies
Germantown, Maryland-based DRT produces communications test and measurement equipment. It is a subsidiary of Boeing Integrated Defense Systems. Known by the nickname “dirt boxes,” DRT devices are cell-site simulators used for land-based or airborne capture of cellphone data. — Margot Williams, The Intercept




Title 10/ 50

Cost: $100K

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