ADS-B, Stuff that I have found.
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That is interesting, and a tad worrying
According to the article, the effective range of these personal jammers is 10's of metres, out to 40 metres!?!? One would assume then they are jamming other nearby automotive and other units as well as the unit being intentionally jammed.
The LoS protections on IFR aviation GNSS systems is one thing, but at the end of an IFR approach in the soup
The FCC and FAA must have/are doing something about it?
According to the article, the effective range of these personal jammers is 10's of metres, out to 40 metres!?!? One would assume then they are jamming other nearby automotive and other units as well as the unit being intentionally jammed.
The LoS protections on IFR aviation GNSS systems is one thing, but at the end of an IFR approach in the soup
The FCC and FAA must have/are doing something about it?
Thread Starter
The FCC gives Lightsquared an extention for their final submission on the effects of their proposed 40,000 ground stations on the GNSS.
LightSquared Update
LightSquared Update
June 16, 2011
LightSquared Update
By Glenn Pew, Contributing Editor, Video Editor
Recent tests have shown that LightSquared's proposed grid of 40,000 wireless network ground stations could interfere with GPS signals, and now the FCC has granted LightSquared a two week extension to file a report on its position. LightSquared's report was originally due Wednesday, the same day the FCC granted the extension. LightSquared spokesman Jim Carlisle said Tuesday that the company underestimated the number of tests that would be necessary to show the network should be allowed. In a letter to the FCC, Carlisle wrote that additional testing "was necessary to permit a proper evaluation of various mitigation options for addressing the GPS receiver overload issue." And that producing a report is really hard.
"Producing a final report is a massive undertaking," Carlisle wrote, citing the multitude of factors involved in the process. The FCC responded by granting the company a new deadline of July 1. In response to the FCC's decision, co-founder of the Coalition to Save our GPS and vice president of Trimble, Jim Kirkland, described his understanding of the process, so far, saying, it's "been a combination of really really bad ideas and slightly less bad ideas." According to Kirkland, too much of the burden of proof has been placed on the companies that could be most affected by LightSquared's network. Said Kirkland, "the FCC should let the private industry return to work and stop squandering resources to solve an unsolvable problem."
]
LightSquared Update
By Glenn Pew, Contributing Editor, Video Editor
Recent tests have shown that LightSquared's proposed grid of 40,000 wireless network ground stations could interfere with GPS signals, and now the FCC has granted LightSquared a two week extension to file a report on its position. LightSquared's report was originally due Wednesday, the same day the FCC granted the extension. LightSquared spokesman Jim Carlisle said Tuesday that the company underestimated the number of tests that would be necessary to show the network should be allowed. In a letter to the FCC, Carlisle wrote that additional testing "was necessary to permit a proper evaluation of various mitigation options for addressing the GPS receiver overload issue." And that producing a report is really hard.
"Producing a final report is a massive undertaking," Carlisle wrote, citing the multitude of factors involved in the process. The FCC responded by granting the company a new deadline of July 1. In response to the FCC's decision, co-founder of the Coalition to Save our GPS and vice president of Trimble, Jim Kirkland, described his understanding of the process, so far, saying, it's "been a combination of really really bad ideas and slightly less bad ideas." According to Kirkland, too much of the burden of proof has been placed on the companies that could be most affected by LightSquared's network. Said Kirkland, "the FCC should let the private industry return to work and stop squandering resources to solve an unsolvable problem."
]
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Concerned that Big Brother might be watching?? How about anyone with an internet connection...
FlightTracker - Flight tracker for aircraft transmitting ADS-B
planefinder.net - Real Time Live Air Traffic Flight Radar
Flightradar24.com - Live Flight Tracker!
RadarVirtuel.com
Granted, the coverage is limited to areas where someone has connected up a USB ADS-B receiver to their PC, but as the more major of those links show, the coverage is already fairly significant...
As a sidebar, interesting that the planefinder one has added Volcanic Ash Cloud monitoring as well
FlightTracker - Flight tracker for aircraft transmitting ADS-B
planefinder.net - Real Time Live Air Traffic Flight Radar
Flightradar24.com - Live Flight Tracker!
RadarVirtuel.com
Granted, the coverage is limited to areas where someone has connected up a USB ADS-B receiver to their PC, but as the more major of those links show, the coverage is already fairly significant...
As a sidebar, interesting that the planefinder one has added Volcanic Ash Cloud monitoring as well
Thread Starter
Thread Starter
It is very hard to get a link to this work. This study is from ADFA and precis the threat annalysis of ADS-B using TOWS.
Generally, looks at all threats, opportunities weaknesses and strengths TOWS
of ADS-B as a system.
Access to the study is through quickview...so, I hope I am not standing on toes linking this site. Appols in advance:-)
Identification of ADS-B System Vulnerabilities and Threats
Sameer Alam, chief investigator for AirServices wrt ATM systems.
Prof. Hussein Aly Abbass
Generally, looks at all threats, opportunities weaknesses and strengths TOWS
of ADS-B as a system.
Access to the study is through quickview...so, I hope I am not standing on toes linking this site. Appols in advance:-)
Identification of ADS-B System Vulnerabilities and Threats
Sameer Alam, chief investigator for AirServices wrt ATM systems.
Prof. Hussein Aly Abbass
Join Date: Aug 2009
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Join Date: Aug 2009
Location: Australia
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New Advisory Circular 21-45
New Advisory Circular 21-45:
http://casa.gov.au/wcmswr/_assets/ma...tac21-45-1.pdf
The money quote:
So design something to c145 spec, but don't go through the full certification process and still get accepted? (In the same way VHF radios do not need to be TSO, just approved?)
That would be awesome for affordable ADS-B out for VFR aircraft.
http://casa.gov.au/wcmswr/_assets/ma...tac21-45-1.pdf
The money quote:
8.4.3 Particular navigation packages that do not have a TSOA, but can be demonstrated to achieve the accuracy and integrity values required, may be acceptable to CASA.
That would be awesome for affordable ADS-B out for VFR aircraft.
Hmmm... some interesting reading ahead..
via the OZBUSDRIVER links to the chief investigator for AirServices wrt ATM systems...
"...Mapping Lessons from Ants to Free Flight: An Ant-based Weather Avoidance Algorithm..."
...Oh oh, maybe not so interesting. Could be some aviation destroying 'global warming' muppetry going on...
"...Estimation of Aviation Emission for Free Flight..."
"...Baseline Aviation Emission Inventory for the Australian National Airspace..."
...
.
via the OZBUSDRIVER links to the chief investigator for AirServices wrt ATM systems...
"...Mapping Lessons from Ants to Free Flight: An Ant-based Weather Avoidance Algorithm..."
...Oh oh, maybe not so interesting. Could be some aviation destroying 'global warming' muppetry going on...
"...Estimation of Aviation Emission for Free Flight..."
"...Baseline Aviation Emission Inventory for the Australian National Airspace..."
...
.
Join Date: Feb 2009
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Given, I can't believe anything that comes out of Gillard's gob, Conroy and her are touting $6+ million for design and build of two telecommunication satelites for thems folk in the GAFA. This was later reported as being for two second hand, (but state of the art), US satelites.
Is it logical to assume these can be utilised for WAAS?
Is it logical to assume these can be utilised for WAAS?
Thread Starter
Considering also that we have access to the Japanese MTSAT that already has the gear on board for WAAS. All that is required is the ground network to be surveyed in to supply the the uplink signal to augment the GNSS network for our patch and we are all apples.....question is as always....user pays. Just have to prove a case that precise GPS signals are in the national interest and everyone wins.....fat chance, I am afraid
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Since they have not been launched yet, there is no technical reason a WAAS package could not have been put on there. Same with all the birds Optus launched over the past decade. (Remember, WAAS in the US also runs on commercial broadcast satellites)
They just have not been willing to spend the money. The birds probably aren't the biggest obstacle; it's the dozens of ground stations.
Bring on Galileo!
They just have not been willing to spend the money. The birds probably aren't the biggest obstacle; it's the dozens of ground stations.
Bring on Galileo!
Thread Starter
Here, here, Baz! There is a serious lack of forethought in our halls of power. Considering we have some 28 ADS-B receiver stations right across the GAFA, how much extra bandwidth would it need to piggyback the raw data on the feed going back to mummy in BN and ML? Already a reference uplink in CB.