DRT 1301B3

Survey Equipment

“No one may ever know you’ve used it”

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 DRT 1301B3 provides smaller/ rugged surveillance capability against a greater variety of analog and digital wireless standards than the DRT1101B. The DRT1301B3 can be configured to support DF, digital voice intercept/recording, supports target lists of up to 10,000 entries and incorporates higher performance control processors for increased processing speed and faster boot times.

Limitations and Planning Factors

- Processing/Monitoring of up to 24 channels. - Dual Wideband RF Tuners provide frequency coverage of all wireless bands of interest (20-1150 MHz, 1429-2500 MHz) - Auto-configuration mode facilitates setup of unit; recognizes and decodes all control and traffic messages - Small size and light weight - Low noise signature - Low power requirement


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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