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Archive for the ‘Jamming’ Category

NTIA looks at Contraband Cell Phones in Prisons

Contraband cell phones are sometimes used by prisoners to talk to a child after school, for Facebook updates, or to post videos to YouTube. Other times they’re used to plan strikes, organize escapes, and order executions. Prisoner-directed crimes will occur with or without wireless, but cell phone access reduces barriers to them, and it’s a growing problem.

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Posted by Steven J. Crowley to Contraband Cell Phones, Jamming, Managed Access, NTIA @ 10:38 am, 02/21/11 | No Comments

Experimental Radio Applications at the FCC

This summarizes a selection of applications for the Experimental Radio Service received by the FCC during September 2010. These are related to radar, military communications, ad hoc networks, GPS, avionics, WiMAX, maritime identification systems, TETRA, public safety, land mobile interoperability, prison cellphone management, air-ground radiotelephone service, picocells for cable systems, transportable satellite antennas, unmanned aircraft systems, consumer satellite terminals, and low-profile satellite antennas.

  • Northrop Grumman filed an application for special temporary authority in support of airborne experimental testing of the STARLite Tactical Radar System a small, lightweight (65 pounds) radar used for tactical reconnaissance by Unmanned Aerial Systems. Transmissions will be between 16.2 to 17.3 GHz. The radar has three modes: Synthetic Aperture Radar (SAR), Ground Moving Target Indicator (GMTI), and Maritime Moving Target Indicator. In the SAR mode, the radar imagery can be one of three forms: parallel to the aircraft flight vector, along a specified ground path independent of the aircraft flight path, or a higher-resolution spot image. In the GMTI mode, the radar provides moving target locations overlaid on a digital map. The MMTI mode performs a similar function for targets over water.

  • DRS Tactical Systems, a supplier of rugged computer equipment for military environments, filed an application (with supporting exhibit) for experimental license to test a mobile radio gateway. In the test, the mobile node will be a High Mobility Multipurpose Wheeled Vehicle (Humvee) with a mast. Equipment will be Harris model RF-7800W-OU440 broadband Ethernet radios attached to a DRS gateway system. This system is intended aid military and commercial entities by providing complex gateway functionality while in motion. Operation will be on 4.94-4.99 GHz.

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Posted by Steven J. Crowley to Ad-hoc Networks, Antennas, Aviation, Electronic Warfare, Experimental, Jamming, Land Mobile, Military, Network Protocols, Picocells, Public Safety, Radar, Radiolocation, Satellite, Telemetry, Terminals, UAS, Wi-Fi, WiMAX, Wireless @ 7:42 pm, 10/02/10 | No Comments

Experimental Radio Applications at the FCC

This summarizes a selection of applications for Experimental Radio license, and for Special Temporary Authority, received by the FCC during January 14-20: VSAT for Haiti, helicopter surveillance in Chicago, WiMAX, wideband at high frequencies, avionics, cell phone jamming, and radar.
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Posted by Steven J. Crowley to Antennas, Engineering, Experimental, Jamming, Radar, Satellite, WiMAX @ 6:57 am, 01/26/10 | No Comments

Recent Experimental Radio Filings at the FCC

Companies request permission from the FCC to test cell phone jamming, antenna-induced interference, millimeter-wave transmission, RFID, radar, and remote-controlled streetlights.
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Posted by Steven J. Crowley to Antennas, Experimental, Jamming, M2M, Millimeter-wave, Radar, RFID @ 8:21 pm, 01/10/10 | No Comments