500M Remote Controlled High Power Armed Forces Signal Jammer Portable Border Control Signal Jammer Purpose-built for temporary border control missions, this remote-controlled high-power Armed Forces jammer can be operated from a safe distance. It delivers up to 20W EIRP per band, with a maximum jamming range of 500 metres depending on local signal strength. Encased in a rugged camouflage Pelican-style hard case, the device is portable, rainproof and sandproof for harsh field