Campaign group Railfuture said this was being done by central control and cutting the number of signal boxes, as well as improved communications and other measures.
The water was pumped out and drained within days, but crews could not revive banks of corroded wires and electrical contacts that held relays components that deliver signal information, control switches and keep trains properly spaced from each other.
Such a thing is possible because, unlike 2G and 3G, LTE depends on control instructions that occupy only a tiny fraction of the total signal -- and details of those specific frequencies have been openly published.
ENGADGET: LTE: fast, global, silenced by a $650 radio jammer Mobile
McMillan was one of nine people killed when her train, under automatic computer control, apparently failed to register a signal and avoid a collision with a train that had stopped near a curve between two stations.
Rooney's strike was the signal for England to take control of the first half - and the only complaint Capello could have had was his side's failure to give the scoreline the appearance their superiority deserved.
The signal from the electrodes would be processed by the electronic circuitry and converted into an infrared signal, similar to that used in a TV remote control.
It would also be free of government control, and the businesses that build it would have to establish a for-profit service around receiving a signal.
How can it be that UBS and others, mind you, have not gotten organized a risk control system in its computers that would signal instantly a dangerously risky trade that has to be reversed?
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"The reserve ratio rise is a signal that the central bank is still in liquidity tightening mode and is very keen to control loan growth, " said a trader at a European bank in Shanghai.
Finally, a voice over the speaker announced that the team received its expected signal, and the news was greeted with a round of applause from the operators in mission control.
Embedded inside it is a batteryless RF switch, and the way it works is that upon the release of the spring mechanism inside, a tiny bit of power is generated for the 2.4GHz RF transmission ( ZigBee compatible), and whatever device is connected to the RF control outlet on the other end will receive the on or off signal.
ENGADGET: Mitsumi exhibits micro-vibration power generator and batteryless RF switch (video)
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