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Bell Aerosystems began development of a rocket pack which it called the "Bell Rocket Belt" or "man-rocket" for the US Army in the mid 1950s. [1] It was demonstrated in 1961 but 5 gallons of hydrogen peroxide fuel needed for 21 seconds of flight time did not impress the army.
In recent years ISM bands have also been shared with (non-ISM) license-free error-tolerant communications applications such as wireless sensor networks in the 915 MHz and 2.450 GHz bands, as well as wireless LANs and cordless phones in the 915 MHz, 2.450 GHz, and 5.800 GHz bands. Because unlicensed devices are required to be tolerant of ISM ...
The BM-21 "Grad" (Russian: БМ-21 "Град", lit. 'hailstorm') is a self-propelled 122 mm multiple rocket launcher designed in the Soviet Union. [11] The system and the M-21OF rocket [12] were first developed in the early 1960s, and saw their first combat use in March 1969 during the Sino-Soviet border conflict. [13]
Allied Communications Publications are documents developed by the Combined Communications-Electronics Board and NATO, which define the procedures for communicating in computer messaging, radiotelephony, radiotelegraph, radioteletype (RATT), air-to-ground signalling (panel signalling), and other forms of communications used by the armed forces of the five CCEB member countries and/or NATO.
The maximum power allowable on the MPT 1320 27/81 system was 4 watts (in common with the American system), although initially radios were equipped to reduce output power by 10 dB (to 0.4 watts) if the antenna was mounted more than 7 meters (23') above ground level. The power-reduction switch is also useful in reducing TV interference. MPT 1320 ...
Allied Communication Procedures is the set of manuals and supplements published by the Combined Communications Electronics Board that prescribe the methods and standards to be used while conducting visual, audible, radiotelegraph, and radiotelephone communications within NATO member nations.
The Rotax 915 iS is an Austrian aircraft engine, produced by Rotax of Gunskirchen for use in ultralight aircraft, homebuilt aircraft, light-sport aircraft, small helicopters and gyroplanes. The engine was type certified in 2017. [2] [3] The engine was first publicly displayed at AirVenture in July 2015 [2] and first flown in March 2016. [4]
NCR/AT&T/DEC/Lucent WaveLAN. 915 MHz, 250 mW transmit power. Obsolete, but still in use in certain areas. Aironet (now Cisco) ARLAN. 902-928 MHz with 12 channels, 450 mW transmit power. Obsolete, but still in use in certain areas. Alvarion BreezeACCESS 900. 902-928 MHz, 200 mW transmit power. Still being sold and in use in certain areas as of 2008.