3835 posts • joined 12 Oct 2009
I'd Prefer Russians and Chinese Routing Around in my Privates Than the UK or USA
Why would anyone trust the NSA or GCHQ with anything? Or indeed their governments? They have no morals.
Besides, they haven't figured a crack for Chinese and Russian equipment.
Does anyone still use CISCO equipment for anything? They have been hacked by the NSA and GCHQ years ago.
Trust no one with your crown jewels; avoid the cloud and don't even let the InterNet in to buildings where confidential work is done. It might be a pain in the butt but at least you have total control.
And please explain if US software is so great, how come the Chinese, the DPRK and Russia can seemingly access US Government systems as well as Trunp's 400 pound Yoofs in their bedsitters?
The FBI, and Other US Government Agencies Should Get Their Stories Straight!
Some US Agencies have claimed the DPRK (North Korea) are in the technical Dark Ages, whilst others claim the country is as advanced as many others, especially since Russia has provided additional InterNet access to the DPRK.
As someone who works there four or five times a year, I know that much of the country's technological advances are home-based talent. Overseas technical resources, even YouTube, are widely distributed on the internal InterNet.
Advanced components are readily available - imported through China and Russia.
Whilst faculties aren't bright and shiny, what they do have is exploited to the maximum.
VietNam Has Airwave/Tetra - And Users Hate It
The Internal Police, Diplomatic Guard Service and Tan Son Nhut (SaiGon) International Airport have Tetra radios - and the Internal Police prefer using cell handsets as the features are better and the well-known Tetra handset profiles, their pockets, are give-aways to the bad boys around here.
The ground coverage of the base stations is very poor as there are insufficient for decent operational coverage. I have asked several police on diplomatic duty if they like the radios and almost everyone said they have to stand in given spots to achieve communications!
There is one base station about 2 kilometres from where I live - and it is surrounded on all sides by closely-spaced apartment buildings.
The national traffic police, the Canh Sat, have standardized on smartphone handsets, with push-to-talk and localised group features for small operational team applications. They have almost 100% coverage across the country as they are programmed to use any cell system within range.
What else does Plod need?
I Still Have . . .
callouses from flipping all those damn switches on the PDP-8 and PDP-11.
But Digital sure built good equipment.
What Better Reason to Buy ZTE or HuaWei?
The USA, starting with Obama, started canvassing countries around the world advising the use of Chinese cell handsets was a risk security.
To me it's more likely the risk was they didn't have American spyware so the Americans could stick their snouts into everyone's business.
Basic cell handsets are the best - their Design Optimisation process eliminates even GPS!
My smartphone has no SIM and the only added application is MESH radio. Eliminating all the back-chatter sure makes the batteries last longer.
QUESTION: Who pays for the airtime of all the surreptitious collection of data?
Typical, Tight-Ar-e Canadian Civil Servants
Dumb Canadian laws include:
A Toronto businessman found that to sell edible underwear in his “adult entertainment” store, he’d need a food license;
“Yelling, shouting, hooting, whistling or singing is prohibited at all times” is illegal in Petrolia, Ontario;
Until May 28th, 2012 you could only legally move a bottle of booze from one province to another with the permission of the provincial liquor control board;
Since 1973, the only noise-makers Sudbury, Ontario, cyclists can attach to their bikes are bells and horns. Breaking noise bylaws in Sudbury can lead to fines up to $5,000;
It’s illegal to skinny dip in Bancroft, Ontario;
Canada’s Currency Act of 1985 limits to the number of coins you can use in a transaction. If it’s nickels, vendors can say no to any purchase over $5, while the loonie limit is $25;
Nova Scotia's Halifax Regional Municipality Bylaws for Taxis and Limousines stipulates drivers must wear shoes and socks, keep their attire in neat and tidy condition at all times, and absolutely cannot weart-shirts;
It’s illegal to build big snowmen in Souris, P.E.I. If you live on a corner lot it’s against the law to built a snowman taller than 30-inches.;
It was illegal to sell butter-coloured margarine in Ontario until 1995;
Canadian law currently states, “Everyone commits an offence who… (b) makes, prints, publishes, distributes, sells or has in his possession for the purpose of publication, distribution or circulation a crime comic.”
Many Canadian communities long restricted the use of outside clotheslines;
In Toronto there's a zoning by-law that only allows up to two mechanical gaming machines in a restaurant or place of amusement;
In Toronto, if your day-to-day vocabulary is riddled with expletives, steer clear of publicly owned green spaces. There's a large fine of over $200;
Chickens, hens, turkeys, and pretty much every other farm animal are prohibited in Toronto with a $240 fine to suggest you comply.
A Three Letter Word Search for . . .
NIX will be all needed to locate this bunch of charlatans.
Screw HP - We Switched to Brother Products
Rather than just diddle the HP software (all over the InterNet) we switched to Brother.
Built like proverbial brick sh_t-houses, we have recommended them to customers in many countries. They make great machines, rarely fail, withstand power line surges and generator standby generators. Dust storms hardly cause them to react. We even have them working in the rear ends of SUVs.
After market supplies are readily available in both refill and replacement ink units - all round better than GP printers.
Just one – the Canadian Communications Security Establishment Commissioner – said , , ,
spy agencies were required by law to provide it access to intelligence sharing arrangements.
Good for Canada - except they let the Americans place equipment in Canada that Ottawa hasn't a clue what it is doing nor does Canadian Communications Security.
In New Zealand the government is banned from knowing what the Echelon mob is doing and ONLY the Prime Minister has an inkling of what they are up to.
Who Ever Thought It A Good Idea To Buy . . .
something you can't even service?
Only the dumb British Government.
It wasn't so long ago when military electronics wouldn't be purchased without 'second sources' to ensure continuity of supply of spare parts.
I work for a company that supplies military equipment to the 'non-aligned' market place and one key element of the majority of contracts is that most of the components can be sourced from in-country suppliers.
The C in China doesn't equate with . . .
poor quality, Chinese military gear is good quality - where it counts.
And 'Cheap' refers to the differential between inflated US military contractor prices, approved by both military and political personnel who upon retirement take up lucrative positions with the very same contractors and those in other countries.
The US has a long line of failed projects, notwithstanding rigged horse-and-cart 'demonstrations'.
Mikhail Kalashnikov’s AK-47 is an excellent example of the fallacy of 'cheap'. There are somewhere between 75 and 100 million AK-47s worldwide - an obvious success story. About 50 standing armies use the AK-47 — including those of China, Egypt, Cuba, Sierra Leone, Somalia, Sudan, Syria, VietNam, Iran and Iraq.
In most places, an AK47 can be bought for $50 – $100, in governmental quantities. China is the world’s largest producer of them. No American gun can be wrapped in 'burlap' (sack cloth), buried in the soil and later recovered in serviceable condition.
As someone who spent considerable hours cleaning Fabrique Nationale Fusil Automatique Leger (Light Automatic Rifle), or FN FAL in the military, the qualities of the AK47 would be appreciated.
No, the C does not stand for Cheap Cost.
Russia is ahead in one aspect of flying . . .
and that is they don't require people to 'walk the runway' picking up the minutiae and debris before their jets depart.
Anyone who has observed US aircraft departures will know there is a lengthy clean-up of runways as their engines are more susceptible to damage than those of the Russians.
Re: Russia has the world's best cyberwarriors, who can win elections.
The DPRK is up there too.
As well as Trump's "somebody sitting on their bed that weighs 400 pounds."
No One But No One Can Beat An "Elephant Nest"
Up on the Central Highlands of VietNam, where I live in Buon Ma Thuot, DakLak Province, we have "Elephant Nests" - big enough to swallow a car.
When a small hole in a road gets pounded over a few weeks by 18-wheeler tractor-trailer sets, the holes get really, really, large. And deep.
Then comes the rain, heavy rain. And so an "Elephant Nests" is born. See: http://static.new.tuoitre.vn/tto/i/s626/2015/10/04/hinh-12-read-only-1443913917.jpg
To complete the scenario, a wandering group of elephants, the Central Highlands of VietNam is home to thousands of these vegetable-garden marauding animals, happens by and take numerous dips all the time enlarging and deepening the hole.
As it would likely take a can of spray paint to mark one "Nest", the Vietnamese resort to using tree branches to warn of holes.
Re: NDAs are bullshit - Must Use The Same Dictionary As Trump.
'Unpresidented': Donald Trump invents the Guardian's word of the year.
Guess Donn Bly deserves a mention in The Guardian, too.
Why Would Anyone Believe Cambridge Analytica
Why Would Anyone Believe Cambridge Analytica given what NIX has claimed and data found subsequently in it's possession?
Why the Hell would the DPRK want to . . .
waste any of it's limited supply of nuclear material in attacking a militarily nothing of a country?
As someone who occasionally works in the DPRK, the only country that attracts ill-feeling in the DPRK - the country that has refused to sign a Cease Fire Agreement with the DPRK, is the USA.
When I present my Canadian passport - with it's 'loose' visa - at the border I have never been treated with other than appropriate behaviour unlike US passport holders. Ask yourself, how many Brits are in DPRK jails?
Britain should avoid the 'me to' attitude adopted by Australia that simply brown-noses the US policies.
Nav Canada Has Years Of Data-Link Under It's Belt
Nav Canada has years of data-Link under it's belt as it has used this technology to communicate with trans-Atlantic aircraft under it's control for many years which are in the 1,400-1,600 daily flights.
Canada is an ideal country to test and update this technology as it has vast distances in a climate that ranges between from polar to temperate. Additionally it encompasses a crossroads international air traffic paths, including the busiest oceanic airspace in the world as well as unique northern air operations.
Canada completed its nationwide implementation of Controller Pilot Data Link Communications (CPDLC) in July 10, 2014.
Crooks and Crims: Rule 1: Turn Off All Electronics
Given how much publicity has been given to Plod an Cops using cell phones to locate / determine who / what / when you would have thought people would know never do crime with a an active cell device.
Or buy a burner cell handset.
Turning Cell Handsets Off or Using Disposable or 'Burner Phones' Will Defeat This Plan
The cheapest cell handsets in many countries don't have GPS facilities whether Disposable or 'Burner Phones'.
Over time even the Bad Guys will learn to turn all their electronics off - or use Serval (MESH) Apps after pulling the SIM.
Hubble - A Generous Gift From The USA
Given it's ignominious birth, with the main mirror was sent aloft ground incorrectly, compromising the telescope's capabilities, the Hubble satellite must be one of the best satellites ever launched.
Thank you, USA.
P.S. There are two more telescopes as big and powerful as the Hubble Space Telescope. The telescopes were built by contractors for the National Reconnaissance Office, a U.S. spy agency. The telescopes have 2.4-metre (7.9-foot) mirrors, just like the Hubble, but they have 100 times the field of view. They are in storage in Rochester, New York.
Too Many People Think The Chinese Still Stand Knee-High In Water Wearing Funny Hats
Only those Foreigners who have had the opportunity to actually visit Chinese manufacturing facilities realise that the days in the rice paddies are over. Sure many of the plants are not the most impressive but, as with Chinese restaurants, who cares about the decor?
They have technology malls, much along the lines of the retail malls in the West, except that the small cubicles are filled with very, very, skilled technicians where iPhone memory chips can be removed, à la FBI, except in ShenZhen the skilled workers fit a memory chip with expanded capacity.
China made the first tablets before Jobs copied them (I bought a few at the time).
As for stealing IP, sure they knock off DVDs, etc., but a lot of Western IP is transferred because the greedy financial pigs in the West want to max out profits and without the transfers their products could not be manufactured at crippling low prices. So where is the theft?
Whilst China, the DPRK and Russia spy on the West, who would ever claim the West has clean hands?
HuaWei, ZTE, TP-Link design and make very fine products and even the UK government accepts that HuaWei products are clean. And where do you think all these 'trusted' US manufacturers are going to get their 5G products made?
And if US technology so great, and technicians so skilled, how come anyone - including an unwashed 400 pound character in his bedroom (described by Trump) - can crack their systems?
Because they have better skills than Americans.
P.S. I am Canadian and hold UK and US passports.
FCC boss to block 'national security risk' companies (cough, Huawei, ZTE) from US's $8.5bn broadband pot
"Threats to privacy posed by US communications equipment providers are a matter of concern"
It's NOT the Chinese we need to worry about rather its the bunch of amoral characters employed by governments in Gloucestershire and Maryland - and many other locations around the globe.
Why, otherwise, is CISCO a preferred supplier?
National Cyber Security Centre Is One You Might NOT Want Messing Around With Your 'Jewels'
Letting an associate of what is, essentially, the 'enemy' (GCHQ-NSA-Echelon), might raise concerns such as those leveled at Kaspersky, HuaWei and ZTE.
Another case of foxes and chicken-houses.
I would trust the Chinese more than the UK government.
Why Not Upgrade The Britten-Norman Islander? Good Enough For Metro Plod
The Britten-Norman Islander, us used by the RAF in a classified surveillance, Communications Intelligence (COMINT) and Electronic / Electromagnetic Intelligence (ELINT) counter-terrorism role. The aircraft is used by the British Army and police forces in the United Kingdom.
They are regularly seen circling and almost "hovering" over London at all times of the day and night – they can be used a bit like helicopters, as they have very low stall speeds.
Alternatively they could use the Reims Cessna F406 Caravan II - also popular with Metro Plod.
All these aircraft are based at Northolt - and monitored by enthusiasts using Kinetic Avionics SBS-1 Real Time Virtual Radar units.
More information: > https://www.secret-bases.co.uk/cia-rendition.htm <
Re: Wishful thinking
Essentially he has been sentenced to confinement in the UK.
The US (UK, et al) all track PAX manifests be they air or sea. The best way is to take a fishing boat to the channel islands the pop over to France. Using non-standard land travel is the best way to avoid detection on the EU and staying at hostels, etc.
High End Radios Are Disappointing In Appearance
I used to work with multi-channel radio receivers and transmitters and they were simply rack-mounted boxes with numerous antennae connections and a couple of LAN sockets. BUT when attached to a computer and screen, they will make you drool.
Even the attached antennae mini-farm would make a technician excited.
The old No. 19 was far more exciting to look at AND you could hear Radio Luxembourg!
Re: "Weed is also accused of earlier nicking $340,000"
Guess the exit door security isn't very good.
My employer sticks RFIDs on all equipment, and vehicles, mainly for equipment location in our offices. Naturally, there are RFID readers on all exits and gateways. Our equipment losses and misplacement are minimal.
But I guess US high security buildings haven't kept apace with technology.
Drivers Should Fight Plods Bulk-Slurping Of Car Plates
Lucky car / truck (lorry) drivers in SaiGon/Ho Chi Minh City are now surveilled by tens of thousands of new CCTV cameras designed to implement road usage changes. Motorcycles are free. Some of the larger intersections have to 10 cameras.
One unusual feature is that many of the cameras are accessible, in real time, on Apps so drivers can check on road conditions - open, jammed, road work or flooding, etc,
All my company's vehicles are fitted with elongated Infra-Red LED spotlights, back and front, which effectively 'blind' cameras and render them useless. The Apps are great for 'fine tuning' the IR radiators
People are tired of the covert attempts to track people / activities, stripping away privacy, be it by cameras, cell handsets or vehicle CAN "Call Home" systems. Obviously trails from credit card, ATM, passport use, etc. are understood / accepted by users to leave mouse trails although some trails can be minimised / eliminated.
What About All The Other 194* Countries Who Might Want Their Own Satellites?
It's all very well the USA slinging it's junk into space, whether bribing Pai or not, but what of those countries whose budgets can stretch only to smaller devices?
Satellite coverage of the USA can, in many cases, be achieved by terrestrial fibre cables whereas there are many countries where communications can only be achieved by satellite. Take Republic of Indonesia with 17,504 (officially listed) islands. How else can so many points be covered other than by satellite?
Anyone listening to entertainment satellite traffic knows how much spectrum and space real estate is wasted. How many people listen to I LOVE LUCY (circa 1951)? Aficionados are well catered to, even today.
The USA has many space monsters, the size of double-decker buses, two of which are circulating around the Korean peninsula. Perhaps KIM Il-Jun can switch from nuclear to concrete and knock out these things and make room for others with lofty goals.
*There are more countries but not all are recognised.
And They Use Windows XP On Trident Submarines - As Do Americans
I wonder if they change the hardware on the Navy's XP computers, whilst retaining the OS?
A Half-Minute Jaunt Could Be Dragged Out To A Stunning 14 Minutes, You Say
In case any UK readers think this is excessive, North American train lengths can be measured in miles / kilometres.
Canadian road traffic law governs the obstruction of roads at level crossings, by trains, to a maximum of something in the order of 11 minutes.
Long enough to pop out to pick up a coffee and a donut at the nearby Tim Hortons!
Start With Your Passport Photo
The passport agency is a facial I.D.s trove.
Since the likeness of people to their photographs is pretty lose for passports, the opportunity to modify them is great.
Simply consult a facial recognition chart then work on the key points such as eyes (move iris), ears (hide under a shaggy hair style), eye brows (join), beards and mouth (make a suckling lemon shape) before dispatching your pictures. Fortunately, I have my pictures taken by a graphic artistic outlet and, slowly, over the years they have gradually varied many salient points.
And don't forget, IR LEDs are your friends - they sure distract scanners.
Don't like bio eye scanners? Cross your eyes (works on single scanners, too). And using arsenic on hands regularly and your fingerprints will disappear - and won't kill you, ether.
Remedies For Excess Gas
1. Charcoal Tablets
2. Flatulence Deodorizers
4. Flatulence Medicines
5. Peppermint Oil Capsules
6. Herbal Teas
If course, avoiding airline food also helps.
Re: Hang on a minute...
"Oxygen" masks are actually chemical generators with a lifespan of about 12 minutes.
Cabin crew get the real tanked oxygen, as do pilots.
Since When . . .
have U.S. judges worn wigs?
More FAKE News: Truth is Manned Helicopter Hit Static Tree and had Rough Landing
It appears that the drone didn't actually collide but rather the instructor hit a tree and messed up a landing.
So what's with the drone? The heli pilot should have gone UP, something his aircraft could do better than a drone. The down draft from the helicopter would have likely driven the drone down, increasing the separation.
Hopefully the drone camera caught the whole incident and can reveal the truth rather than a humans excuses.
How Come The USA Thinks It Owns All The Slots In Space?
WHAT WILL HAPPEN when countries other than the USA decide that they, too, want to fly 4,425 satellites around, such as China, India, Mongolia or Russia?
And who will determine who has 'rights' to a particular slot in the heavens?
Nor is the US Government is to be trusted - which is why there are now four GPS systems - and it determines the penultimate operation of such a system through it's licencing terms.
"We're deeply concerned about the risks of allowing any . . . entity that is beholden . . .
to foreign governments that don't share our values to gain positions of power inside our telecommunications networks."
Given the amoral activities of many Western Governments it is likely users data is safer in Chinese hands in any event. Both the GCHQ and NSA operate under legislation that make almost any activity 'legal'.
Asking the U.S.' NSA, CIA, FBI, National Intelligence, Defense Intelligence Agency or National Geospatial Intelligence Agency heads if they would use a smartphone from HuaWei or ZTE is sort of dumb since all the back-doors and hacks developed for 'American' products would have to be repeated for Chinese products.
The Russians might well have a solution - resorting to using typewriters and photocopiers in their intelligence agencies.
GDPR Requires Data Subjects. . . Especially What Data Is Passed On To Third Parties
Given the spying technologies of GCHQ and the NSA I am happy to forego any perceived 'benefits' such as knowing when a Starbucks pseudo coloured water outlet is nearby (VietNam is the world's No. 2 coffee exporter) and whether there is a fraction of a Cent / Dong / Penny 'deal' coming up.
Other data that will be shared can include physical or biological characteristics, vehicle speeds, seat belt use, and information about braking habits, precise geographic location. Just why do manufacturers need this data?
The police can usually access this data, particularly seat belt use data, using roadside equipment. And you can bet other government agencies can dream up other uses that are detrimental to vehicle owners
Having recently taken delivery of a new company vehicle, I disabled the back-channel radio antenna, moved the unit that contains seat-belt data and moved the Controller Area Network (CAN) connector (usually near the driver seat) to an inaccessible point (for police).
Into the Controller Area Network (CAN) I plugged an aftermarket device that presents all the data through an App. So if **I** decide **I** want to share MY data, **I** have full control of it.
China is Aggressive with Respect to the East Sea aka South China Sea
The danger is that China has an aggressive history as demonstrated by dead Vietnamese sailors who drift across the border line in the water in Ha Long Bay, shot by the Chinese Coast Guard.
Witness also the Vietnamese fishing boats that have been shot at - with further deaths and injuries - and rammed when fishing in the Vietnamese area of the Spratly Islands. The Vietnamese have long occupied it's part of the Spratly's with houses with gardens, stores an airfield and regular ferry service years before the uppity Chinese showed up on the scene.
China has NO claim to the WHOLE of the East Sea (aka South China Sea) - except in it's bent distortion of history. This is backed up by historic maps and charts as well as a United Nations ruling.
Car Battery Booster Cables Are The Low Tech Way to Stop Trains
The First Nations population in Canada are very familiar with railroad operations, especially when it comes to protest.
To stop rail traffic First Nations people use a set of battery booster cables and short the outer - load-bearing - rails together and automation will look after the rest.
Shorts across these rails trigger red lights for a couple of train lengths of rail. Train lengths in North America are often measured in kilometres/miles using a formula based on time a train takes to pass a measuring point at a certain speed.
How About Clearance for RAF Northolt
where the government keeps the Queens Flight and all those ministerial aircraft along with the Met Police cell tracking aircraft?
Rich media artists also get to use Northolt, as have the CIA rendition aircraft.
Apple: Pot Calling Others Black
Tell me, how many judgments are there against Apple for plagiarising others works?
Let's start with the payment made by Apple to Creative Labs, the American subsidiary of Creative Technology Limited, for knocking off it's music player patent.
Wigs and Heavy Dark Framed Sunglasses Will Beat Watson Most Every Time
The reference points for facial recognition are well known and are easily blocked or distorted. Try making your mouth into a 'rosebud' shape - that is a useful start.
The fallibility of identification technology us amply demonstrated by the HSBC voice analysis that is applied to every telephone call made to the bank.
With a simple tremolo circuit commonly used by musicians and a bandwidth limiting filter, my personal assistant can, and does, emulate my voice and easily persuades the HSBC computer that it is I who is speaking.
'Has Criticised "Patronising" Techies That "Sneer" At Politicians.'
This ignorant Tory has only herself to blame, she is a living example of the term "dumb as a brick", as did her predecessor.
Without a doubt this schema will fail - particularly in the U.S. of A. with it's First Amendment,
More Tosh: "Fibre costs in cities have been pegged at around £300 to £400 per household . . .
but he said costs in rural areas are "massively more expensive"
Why, I ask?
Perhaps it is because Openreach has adopted BTs over-engineered cable practices. Fibre optic cable (from China) is very economic, as are the distribution cabinets, etc.
I have a weekend retreat some 70 kilometres from the nearest town of a size, on a minor provincial highway in DakLak Province. The plan for fibre was announced by billboards along the route so we all kept an eye out for the great event.
First we observed survey teams, armed with laser tools and erecting high resolution GPD equipment, carefully surveying the route took about 6 weeks. Then silence.
Without much hoopla massive cable carrying trucks obstructed the road, preceding the cable laying ploughs that operated 24/7 burying the conduit that had been filled with the fibre cable. This route has small hamlets and villages along its length and the spurs (and associated junction boxes) were positioned easily as there was slack designed in - and simply buried in the ground.
The only delays were incurred when one cable truck ran out of supplies and another moved in - requiring splicing.
Four months later it was finished. One hundred megabyte feeds to one and all.
I have observed fibre optic cable installation in Toronto - down the centre of major roads using pavement cutting ploughs. In Ho Chi Minh City/SaiGon economies are achieved by telcos and cable companies share the cost of installation and having detailed maps of underground infrastructure. Because there are hundreds of bridges in the city they had to install conduits and then pull cable.
Perhaps if Openreach used modern techniques and sub-contracting instead of hiring thousands of 'engineers', they could reduce the excessive £300 to £400 per household costs.
GPS Jammers Usually Paired With Cell Jammers
Anyone who searches for cell or GPS jammers will quickly learn that Shenzhen (China) is the centre for jammer production. (D-I-Y types can find detailed design / assembly instructions searching for "Wave Bubble")
Ever since I was rear-ended on my motorcycle, by a car driven by an idiot using a cell handset, all my vehicles have been equipped with Cell Jammers (now 4G) so that the most-skilled/worst drivers in the world (Vietnamese) around me can't use their cell handsets.
These drivers even text whilst driving a motorcycle!
The GPS 'jammer' actually outputs an erroneous location signal which must confuse Google when the same location shows against my vehicle WiFi anywhere I travel.
And before those who think it is 'wrong' jump on their keyboards, please note that cell jammers are completely legal in most parts of the Far East (See: https://en.wikipedia.org/wiki/Mobile_phone_jammer AND https://en.wikipedia.org/wiki/IMSI-catcher )
Re: Didn't we have such a system? (Decca)
Decca was designed by an American, William J. O'Brien, but after the US Government failed to show an interest (therefore no funds coming) it was brought to the UK where it was developed into a viable product by Decca and their Harvey F. Schwarz, chief engineer of the Decca Record company and a friend of O'Brien. It was used in the Normandy beach landings.
After WW2 it was adopted, starting in the UK, as a wide area navigation system, for marine use. Then expanded to aeronautical applications. The 5-frequency group was around 100kHz - south of the BBC longwave station. Tests, using BOAC aircraft, proved that Decca could reach Moscow - for potential use as bomber navigation for the RAF.
HiFix was a HF (1.6 mHz) short-range system that used two transmitters and a locating receiver.
Decca was based on receiver equipment rental providing a healthy cash flow. After joining the EU the new rules forced Third Parties to develop receivers, thereby reducing Decca income. Finally, the EU forced the UK government to stop financing Decca just as GPS took off.
Wikipedia has some decent descriptions of Decca > https://en.wikipedia.org/wiki/Decca_Navigator_System < and LORAN > https://en.wikipedia.org/wiki/LORAN <. The main difference between Decca and LPRAN was that the former used phase comparison and the latter timing comparison to ascertain location.
bz b b bz b b bz b b bz b b bzzzzzzz
Still happens to me when I have a cell handsets (3G-4G) on my work table near my computers which have audio systems attached to them.
I also carry a portable 25W UHF MESH (digital) transceiver which has zero affects on computers.