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The expansion of the 5G mobile Internet network in the USA attracted the attention of the FAA, which warns of possible interference and interruption of flights.
Para la Federal Aviation Administration – FAA, There is a potential risk to the operation of thousands of aircraft in the USA by interference in radios and ground signals focused on the ILS systems, what the suspension or delay of flights would bring.
In an official statement the entity indicated:
FAA believes 5G expansion and aviation will safely coexist. Hoy, We took an important step toward that goal by issuing two airworthiness directives to provide a framework and gather more information to avoid potential effects on aviation safety teams.. The FAA is working closely with the Federal Communications Commission and wireless companies, and has moved towards the safe implementation of 5G expansion. We are confident that with continued collaboration we will achieve this shared goal.
What is the risk of 5G for flights?
As we know, This new technology that is gradually being activated throughout the world has the objective of offering better and faster connectivity to cell phones around the world., but in the United States it was recently approved that its operating bands be expanded.
Currently, The operating bands of the 5G network range from 3650 and the 3700 MHz, but since 5 of January of 2021 It was authorized in the United States for it to be transmitted between 3700 and 3800 MHz, which makes it very close to the 4200 and 4400 MHz that aircraft radio altimeters use.
Radio altimeters are key safety components found on all aircraft, commercial airplanes and helicopters, being susceptible to interference from C-Band 5G wireless systems. During an interference situation, dangerous or misleading radio altimeter data introduces a significant level of risk to the aircraft at the worst possible time: during approach and landing. It may also reduce or eliminate the functionality of terrain avoidance systems.. This potential 5G interference has been documented as a safety risk by the FAA and several aviation safety regulators globally..
What is the proposal?
In the FAA directive that will affect 6.834 transport planes and also helicopters of various models and manufacturers, Air operators are asked to update their flight manuals to restrict operation when the presence of 5G C Band exists at a certain airport..
The proximity of the bands could generate interference or erroneous readings in the cockpit instruments in low visibility landing situations., implying a potential risk to the operation, so telephone companies like Verizon and AT&T have proposed temporarily restricting 5G transmission, but a long-term solution is required to maintain network expansion and safe aviation.
These restrictions range from the use of ILS, RNP, automatic landings, enhanced flight vision systems, other flight control and auto-hover systems in the case of helicopters.
The airports where these restrictions come into application will be notified in advance by the FAA via NOTAM..
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The truth is, due to the risk that this network could cause on flights, I think they should withdraw them for a while until the problem is solved., I think they are a good advance for technology but they should be perfected a little more so that they work well. Good post, interesting information..
Let's see what happens in the next few weeks..