Search results
Results from the WOW.Com Content Network
In 1917 AT&T invented the first American air-to-ground radio transmitter. They tested this device at Langley Field in Virginia and found it was a viable technology. [ 5 ] In May 1917, General George Squier of the U.S. Army Signal Corps contacted AT&T to develop an air-to-ground radio with a range of 2,000 yards.
The PRC-163 is one of the Handheld, Manpack & Small Form Fit (HMS) components [3] of the Integrated Tactical Network family of radios, [1] the U.S. Army's modernization strategy for tactical radios. It is a member of L3Harris' Falcon IV family of tactical radios, and the successor to the Falcon III-family AN/PRC-152 Multiband Handheld Radio.
Founded in 26 August 1968, the organization's primary mission is to popularize and promote amateur radio in Singapore. SARTS sponsors amateur radio operating awards and operates special event stations on a regular basis. One membership benefit of the organization is a QSL bureau for members who regularly make communications with amateur radio ...
Example of an ACARS message. In aviation, ACARS (/ ˈ eɪ k ɑːr z /; an acronym for Aircraft Communications Addressing and Reporting System) is a digital datalink system for transmission of short messages between aircraft and ground stations via airband radio or satellite.
The first recorded air-to-ground radiotelephone service on a scheduled flight was in 1937 on the Chicago-Seattle route by Northwest Airlines. [3] [failed verification] AirFone commenced its service in the early 1980s starting with first-class under experimental licenses; the FCC's formal allocation was in 1990. AirFone handsets were gradually ...
The JTRS Enterprise was composed of five ACAT 1D programs of record - Network Enterprise Domain (NED), Ground Mobile Radios (GMR), Handheld, Manpack, & Small Form Fit (HMS), Multifunctional Information Distribution System (MIDS) JTRS, and Airborne, Maritime Fixed/Station (AMF) and one ACAT III program - Handheld JTRS Enhanced Multi-Band Intra ...
where = (), is the horizontal distance between the UAV and the ground node, and are the terminal heights, is the ratio of land area covered by buildings compared to the total land area, is the mean number of buildings per km 2, and is the scale parameter of building heights distribution (assumed to follow a Rayleigh distribution). In some cases ...
Single Channel Ground and Airborne Radio System (SINCGARS) is a very high frequency combat network radio (CNR) used by U.S. and allied military forces. In the CNR network, the SINCGARS’ primary role is voice transmission between surface and airborne command and control (C2) assets.