FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1983
1983 - 0057.PDF
SRA Communications' Atcas 1 automated ATC system is in service at Stockholm's Arlanda Airport SRA wins ATC display contracts Recent contracts for SRA Communica tions air traffic control systems include a radar display system for Bergen, Norway, Airwatch 1000 displays for Dublin Air port, and an extension to Britain's Civil Aviation Authority order for DS-86 ATC displays. Bergen is to receive the fifth Norwegian Automated Radar Display System (Hards 5) to be supplied by SRA. A dual parallel computer will drive four displays which will show raw primary and synthetic secondary radar. Dublin's Airwatch system will include six consoles, each of which will be autonomous, with its own microprocessor. SRA will begin deliveries to the CAA this year; 117 DS-86s are now on order for London's West Drayton ATC centre. The latest DS-86 display is suitable for civil or military applications. SRA claims the benefits include a large display capacity, clarity, and a fast stroke-written presentation. DS-86 is marketed as a modular family. Displays can be colour or monochrome, circular or rectangular, and in sizes ranging from 12in to 21in. Four drive modules and two controller modules are available for different requirements. The usual interfaces and peripherals such as rolling balls, keyboards, and plotters can be supplied. SRA will supply autonomous DS-86 consoles with their own microprocessors, or "dumb" terminals which need a host computer—the UK order is for displays only. Vectors are generated digitally, and SRA claims an advanced digital/analogue conversion to reduce staircasing effects. There are 4000x4000 addressable vector locations. Line width is 0-4mm, and up to 192 different types of character are avail able. Sweden accounts for just over half of SRA's civil ATC and military command and control business. The second ATC Automated System (Atcas 2) is coming on FLIGHT International, 8 January 1983 line at Malmo, where synthetic radar and flight-plan data is shown at 42 operational stations, Atcas 1 is operational at Stock holm's Arlanda Airport, where 41 con soles receive raw and synthetic data from five radar stations. Gothenburg and Sundsvall have smaller SRA ATC sys tems. SRA has also supplied the Swedish Air Force's ATC system and some com mand and control equipment for the Stril-60 air defence system. The latter is due to be updated by the Stril-90 system, for which SRA will bid. Exported ATC systems have included the giant turnkey system for Moscow, which has 271 consoles with a total of 95 synthetic dynamic and time-shared dis plays, 224 electronic data displays, and 82 strip printers. Jugoslavia also has an SRA civil ATC system, and SRA has sold equipment to the air forces of Belgium, the Netherlands, and Switzerland. West Germany, Sweden, and Nigeria have SRA ATC simulators in service or on order. SATT develops training jammer SATT is developing a smaller version of its AQ-800 training jammer to reduce drag and make it easier to fit on different air craft types. The Swedish Air Force uses the AQ-800 for training ground operators against different types of electronic countermeasures, and for evaluating mod ifications to ground radars. The size re duction is achieved by integrating the ra dar receiver into the pod, which is housed separately beneath the main pod in the initial version. Although simulators can be used for early training, SATT says that real air craft are needed to make mock attacks at realistic speeds and heights with different jamming techniques. Effects such as shad owing cannot be demonstrated adequately on the simulator, according to SATT. The AQ-800 is available with full coverage in S, C, X, and Ku bands, and the modulation can be varied between AM, FM, and saw tooth. SATT is the main Swedish supplier of jammers and radar-warning receivers (RWRs)—the company has supplied all Swedish Air Force tactical RWRs. SATT is working on an RWR and a pod-mounted jammer for the Gripen, but few details are available about these sensitive devel opment areas. Jobs are normally done on an individual project basis, so SATT has few electronic warfare products as such, but the digital AR-777 is marketed as a basic RWR which can be modified to suit customers' requirements. A typical indicator displays the frequency of the received signal on two horizontal rows of lights—the top row stores the signal for a pre-set time, and the lower row gives an instantaneous reading. Digital displays show the pulse repetition frequency of a fixed return. The Viggen's SATT radar-warning receiver antennas are on wing-mounted pods (left) and in the tail (right) Lrtittil& •t1it<. w Bil&tH-j -i"*1 i «• ffifMlhiL PpPPl! BBfififtHitp1'"" HJ5flBIIW..f JM 4Pwi '..jir'.ai *"* 8E! . j^jft**fil$it \ m^^^t' __ i^MI^ ] EJE
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
