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  • Compact antennas for telecommunication: Modeling and perspectives
    Dtj ~ of mixed terminals GSM, DCS is talked ( 900 MHz / 1 800 MHz), but it is clear that this new concept will stimulate the design of new adaptable multiband antennas on any types of … … public cabins, handset, cars, aircrafts ).
  • Handbook of Unmanned Aerial Vehicles
    … subsystems had to be added to the Tempest UAS to either satisfy FAA requirements or to increase safety to expedite the COA process including a 900 MHz tracking antenna with Yagi for up … … for communication from the aircraft to both the tracker …
  • EL/M-2270
    … 500 1,640 width narrative 900 m (2,953 ft) 900 2,953 height diameter … … operating narrative 3 MHz30 MHz 3 3000000 HF 30 … … King Air 200-sized aircraft ) 200 n miles (370 … … in azimuth elevation height antenna stabilisation sensitivity noise figure …
  • HK-JM / HK-JM2 surveillance radar
    … length reply rate Frequency operating narrative 30 MHz to 300 MHz (VHF) 30 30000000 VHF … … 330 km; 205 miles) ( aircraft sized target flying at … … polarisation Accuracy range narrative 900 m (2,952 ft … … 9° 9 elevation height antenna stabilisation sensitivity noise figure …
  • Back cover
    Landing guidance systems; cf. Aircraft landingguidance Land mobile communication antennas biological bodyadjacentto wire antenna; effect on antennaimpedanceand radiated power, induced field and dissipated power in biological body. Nyquisf, Dennis P, 7-AP 77 Xov 863-865 (2C07) human body effect on dipole antenna at 450 and 900 MHz .
  • http://calhoun.nps.edu/public/bitstream/handle/10945/1586/04Jun_Garcia.pdf?sequence=1
    The computer system and antenna used to control the Volcano can be seen in Figure 63. The frequency to control the aircraft was 900 MHz and the on-board camera used the 2.4 GHz band to transmit live video back to the ground control station.
  • Wireless corner: Characterization and consideration of topological impact of wireless propagation in a commercial aircraft environment
    Estimations of the received power for three different values of Y at 900 MHz frequency in the XZ plane with the aircraft overhead (full aircraft). IEEE Antennas and Propagation Magazine, Vol. 55, No. 6, December 2013 .
  • http://calhoun.nps.edu/public/bitstream/handle/10945/2582/06Sep_Landreth.pdf?sequence=1
    In the NPS configuration, the aircraft is launched manually with a standard RC type controller tied into the Piccolo autopilot (with an amplified antenna for added range, Figure 3). Control is passed from the manual Piccolo control (via the RC controller) to the computer control (Figure 4), where control inputs and telemetry are passed via 900MHz link.
  • Advanced Multifrequency Radar Instrumentation for Polar Research
    the Twin Otter aircraft , the Ku-band radar uses a set of two horn antennas for transmit and receive operations in the 12– 18-GHz range, each with 20 dB of gain. The Accumulation Radar uses a single four-element Vivaldi antenna array opti- mized for operation in the 600– 900 - MHz range.
  • The tempest unmanned aircraft system for in situ observations of tornadic supercells: Design and VORTEX2 flight results
    Successful flights across the entire COA-defined areas re- quired constant communications with the aircraft through the 802.11 WiFi and the 900 - MHz autopilot link for a dis- tance up to 10 miles (16 km). As mentioned before, this was preformed with a 900-MHz patch antenna mounted on a COTS mechanical …