|reply to patcat88 |
Re: All electronics are "transmitters"
said by patcat88:A solar storm can cause interference with the radio communication and navigation, especially in the high-frequency bands. The VHF bands used by aircraft are not immune, but less so than HF. Satellites are more vulnerable than anything, because they aren't protected by the Earth's magnetic field. But, the nice thing about radio interference from solar storms is that it can be forecasted. Airplanes can, and have modified procedures in advance to compensate for the expected interference.
Ever heard of a solar storm? Planes dont fall out of the sky.
However, did I ever write that planes would fall out of the sky? Rather than building a strawman argument, maybe you should read what I wrote, rather than what you think you can argue against?
said by patcat88:The US code that you cited says that the device must accept interference without damage. It doesn't say that it must function properly during the interference. An example would be your Wi-Fi connection or Bluetooth headset: Have you ever lost a connection or heard a crackling noise when the microwave oven was running in your kitchen? That's interference. But, unless you put the device IN your microwave, it resumed functioning after the microwave shut off.
So the circuit boards on planes are not FCC certified?
The electronic devices on civil planes (other than experimentals) in the US are TSO certified, which is far more stringent than any FCC certification. The TSO standard relevant to this situation is rejection of interference from an ADJACENT frequency. That is specified in terms of both frequency deviation and power level, as a very strong signal on an adjacent frequency can also "blank" a receiver. Again, it's laws of physics.
said by patcat88:Actually, in a Cat III approach, the autopilot is coupled to the navigation radios, and does fly the plane. However, the pilots monitor the landing and will command a missed approach if anything appears amiss.
The radio instruments do not fly the plane, nor will they make it go into a steep dive to the ground like in a cartoon.
said by patcat88:No, it's the conclusion of many accident investigations. Pilot training, air traffic control procedures, and equipment design all have layers of redundancy to prevent a single failure from leading to an accident. Removing or circumventing a single layer doesn't necessarily cause a crash, but may increase the probability of one in the event all other layers fail.
That is a sign of bad training or social problems at the airline.