Bomb makers started using trigger devices with more power, employing a wider range of frequencies, and incorporating cell phones into their designs. To counter, U.S. forces started using programmable jammers and dispatched electronics warfare experts from the Navy to fine-tune the devices.

Working as an RF signal jammer, the NDR-V4000 operates by unleashing a high power jamming coverage that gives off a protective shield of energy to attack the whole spectrum.

Unlike others, this is not a "white noise or barrage jammer" as developed in the second world war, creating heat but failing to produce the effective RF signal output to the antenna due to DC-infinity of the singnal of white noise. NDR-V4000 is a state-of-art double synthesized system, covering each channel within Nano seconds to inhibit the control of any coded remote control.

"This development has brought RF jammer into next generation" said Peter Hewitt, Senior Vice President of NDR Resource International, Inc. "We were pleased to provide such technology to 2008 Olympic Game to ensure the safety of VVIPs"

NDR-V4000 High-Power Convoy Jamming System is also deisgned to allow the operation of the users own communication system. The unit is also able to be programmed by the user via computer interface. NDR-V4000 is custom-made and available for authorized government agency end-users only.

NDR Resource International, Inc specializes in the design, development and manufacture of RCIED jamming system. RF signal jamming products include a very wide range of state-of-the-art RCIED jammers, bomb jamming devices, cell phones jammers, DDS digital programable jammer, multi-band jamming solutions to suit all types of worldwide environmental conditions, locations, security applications and counter terrorism missions.