Device Offered by Chinese Company Really Cell Jammer, FCC Enforcement Bureau Says

The FCC Enforcement Bureau ordered China-based Shenzhen Tangreat Technology to show cause why certification shouldn't be revoked for a device it offers as a Part 15 Class B computing peripheral for preprocessing data. The device is also an illegal cell-signal jammer, the bureau alleged Tuesday. “We take this action based on evidence that Shenzhen apparently misrepresented to the Commission the equipment to be marketed and sold under the Disputed Authorization,” the bureau said. “Instead of the approved use, Shenzhen apparently marketed and sold jammer equipment, in violation of Sections 302(b) and 333 of the Communications Act of 1934.” In November 2010, agents from the bureau’s Atlanta Field Office examined a unit of the TxTStopper, manufactured under the certification, installed in a vehicle owned by Just Driver Training, a driver’s education training school in Canton, Georgia, the bureau said. “Tests conducted by the agents indicated that the TxTStopper was in fact a cellular/PCS jamming device and that, when installed in a vehicle, the TxTStopper was capable of blocking cellular communications initiated from both inside and outside of the vehicle, apparently including 9-1-1 and other emergency calls,” the bureau said.