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pierredv : atc   13

NextGen Reality Check: Problems Persist As FAA Installs Framework | Aviation Week, May 2018
"The infrastructure piece of the FAA’s NextGen air traffic control (ATC) modernization is “nearly complete,” Acting Assistant Administrator Pamela Whitley told an Air Traffic Control Association (ATCA) conference in Atlantic City, New Jersey. Other speakers described a U.S. national airspace system that has ongoing traffic-flow and congestion problems."

"Deployment of the nationwide ground infrastructure for automatic dependent surveillance-broadcast (ADS-B) is complete. DataComm, a capability that enables controllers and pilots to communicate by text messages, is operational at 57 airport towers; it now is being deployed to en route centers. SWIM (system-wide information management)—a data-sharing backbone the FAA uses to make flight, traffic flow, weather and other information available to subscribers—continues to add services, Whitley notes."
AviationWeek  FAA  ATC  aviation  ADS-B 
may 2018 by pierredv
SKA, aviation clash over radio frequency interference | ITWeb Jun 2016
"There is an impasse between the Square Kilometre Array (SKA) SA and the local aviation industry over the restriction of some radio frequencies within the Karoo.

A draft Astronomy Geographic Advantage (AGA) Act has been published for public comment, seeking the protection of the SKA from radio interference. The frequency spectrum that is referred to in the AGA is from 100MHz to 25.5GHz."

"The Civil Aviation Authority (CAA) says a restriction on the frequencies would hamper two-way communication between pilots and the relevant air traffic control sector. However, the SKA says these draft regulations specifically recognise the importance of safety-of-life services, such as those used in the aviation sector, and provide for exemptions of these services from the strictest of the SKA protection requirements."
CAA  SKA  interference  spectrum  ATC  air-traffic-control 
december 2017 by pierredv
MSS: Inmarsat failed to meet required milestones, says ViaSat | PolicyTracker: Nov 2017
"Inmarsat was one of two companies granted spectrum for mobile satellite services by a European Commission decision in 2009. The original expectation was that this would be used for mobile TV, other multimedia services or rural broadband services but it is now being used in an emerging new market: onboard WiFi for aircraft. The Commission decision was controversial because it allowed operators to use complementary ground components (CGCs) – terrestrial base stations – as part of their satellite network."
PolicyTracker  Inmarsat  ViaSat  CGC  ATC  satellite  MSS 
november 2017 by pierredv
ANALYSIS: Administration's sloppy ATC rhetoric hurts chance for reform | Opinions content from ATWOnline, Sep 2017
"The ATC entity would be independent, like the US Postal Service (certainly no one’s idea of a private corporation), and be removed from the federal government’s annual appropriations process. That way, it could make large investments in modernization that may not necessarily pay off immediately, but would generate huge benefits down the line. And it could make course corrections along the way as technology evolved and changed without cumbersome legislative alternations. It is not turning ATC over to a private, for-profit corporation. And FAA would become the regulator of the ATC entity and no longer be in the odd position of regulating itself managing ATC. This is basically how ATC works in most of the industrialized world."

"There are two main groups opposed to spinning off ATC from FAA: 1) good-government liberals who are against “privatizing” what they see as key government functions and 2) the general aviation community, given voice by the National Business Aviation Association (NBAA)."
AviationWeek  opinion  FAA  ATC  aviation 
september 2017 by pierredv
The 4G threat: future-proofing the UK radar network - Airport Technology
"... a critical upgrade project undertaken by NATS, the UK's leading supplier of air traffic control (ATC) services, has quietly slipped under many people's radar.

The organisation, which provides ATC solutions to 15 UK airports, including Heathrow and Gatwick, and all en-route air traffic, has become the first operator to proof its radar systems against interference from the 4G network."

"NATS' solution to the problem involves upgrading its existing radars with filters that suppress the electrical waves generated by 4G network frequencies. "
UK  ATC  aviation  interference  Ofcom  NATS 
may 2017 by pierredv
Ofcom | Award of the 2.3 and 3.4 GHz spectrum bands: Update on the coexistence of 2.3 GHz LTE with Wi-Fi in the 2400 to 2483.5 MHz range and other coexistence issues
"This document sets out a further analysis of potential coexistence issues between new mobile broadband services in the 2.3 GHz band and Wi-Fi and other services in the neighbouring 2.4 GHz band. This follows a consultation published in February 2014. The Ministry of Defence is releasing the 2.3 and 3.4 GHz bands to Ofcom for award in late 2015 or early 2016, through an auction, as part of the Public Sector Spectrum Release programme. We expect both award bands to be of interest to mobile network operators wanting to provide extra capacity for mobile broadband. The 2.4 GHz band is accessed by various services on a licence exempt basis, including Wi-Fi. Our assessment is that there will be very little impact from mobile services in the 2.3 GHz band. If interference does occur, there are some mitigations available, the most effective being use of the alternative 5 GHz Wi-Fi band. This document also assesses coexistence issues for radar and satellite operating close to the 3.4 GHz band. "
2.3GHz  2.4GHz  ATC  radar  spectrum  ofcom  coexistence 
december 2014 by pierredv
Germany blocks use of MSS S-band for in-flight connectivity
Germany seems to be blocking Inmarsat's plans because DT has invested heavily in an alternative "Aero CGC services are a new initiative by Inmarsat to provide in-flight Wi-Fi using a hybrid of satellite and earth stations. Inmarsat wants to be able to roll out these services using the 2 x 15 MHz assignment of pan-European spectrum (1980-2010 MHz and 2170-2200 MHz) it gained following the 2008 EC Decision. " "Direct Air to Ground Communication (DA2GC). PolicyTracker understands that DA2GC is a big programme for Deutsche Telekom. . . . The technology could access the unused “unpaired 2 GHz band”, sold as TDD UMTS bands in Germany's expensive 2000 auction. "
PolicyTracker  air-to-ground  aviation  CGC  ATC  Inmarsat  DeutscheTelekom  COCOM  CEPT  Aero 
september 2014 by pierredv
Low-cost radar: A programme worth watching | The Economist March 2013
Trial of passive radar by Thales and NATS, British air traffic control agency multi-static primary surveillance radar (MSPSR) "The growth in radio and television broadcasts—especially with digital and high-definition TV—now provides an enormous amount of high-frequency radio waves which are ideally suitable for passive radar systems. Moreover, the availability of cheap and powerful computing makes it feasible to analyse the data required to build a system like MSPSR. Thales and its partners expect to be able to produce results as good as conventional radar. "The trials are designed to see how passive radar could support Britain’s air-traffic management. . . With growing demand for wireless devices, passive radar would allow the radio spectrum currently used by conventional radar to be freed up and auctioned off to mobile operators."
aviation  air  traffic  control  ATC  NATS  DTV  UK  Thales  radar  TheEconomist 
march 2013 by pierredv
FCC 25.252 as of April 26, 2012 - hallikainen.com
Special requirements for ancillary terrestrial components operating in the 2000-2020 MHz/2180-2200 MHz bands "shall not ... Exceed an aggregate power flux density of -51.8 dBW/m^2 in a 1.23 MHz bandwidth at all airport runways and aircraft stand areas"
satellite  ATC  regulation  FCC  rules 
april 2012 by pierredv
FCC avoiding LightSquared mistakes with Dish — GigaOm March 2012
"The Federal Communications Commission on Friday denied Dish Network’s request to build a terrestrial LTE network over its satellite airwaves, but it didn’t kill the satellite broadcaster’s proposal outright"
interference  FCC  satellite  ATC  Dish  cellular  LTE 
march 2012 by pierredv
LightSquared's fledgling wholesale LTE network appears worth a look -- Urgent Communications article
"LightSquared, which acquired mobile satellite services (MSS) firm SkyTerra earlier this year. It plans to use MSS spectrum, ancillary terrestrial component (ATC) spectrum and terrestrial-only spectrum — supplemented by spectrum hosting and pooling agreements (with all of the necessary roaming provisions) — to swiftly roll out a network that will cover all major markets by the end of the second quarter 2013." "Harbinger awarded a massive eight-year, $7-billion contract to Nokia Siemens Networks to build and manage the nascent LTE network, which is expected to be launched in the second half of 2011"
wireless  commerce  MSS  ATC  mobile  urgentcomm 
july 2010 by pierredv

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