As if all the controversy about 5G and health isn’t bad enough, now there’s a new saga: 5G vs Airplanes!
Specifically, mid-band 5G vs radar altimeters.
So, what’s the deal?
It turns out it’s utter insanity…
But then, I guess we shouldn’t be surprised!
Stay tuned for more fun!!
Ok Scotty, so the Radalt band and the 5G band don’t overlap. What is the issue? Harmonics?
That’s the question. Some say it’s because crappy altimeters don’t “filter” interference from 5G. But then that’s a bit crazy given the non-overlapping bands. And then you have the fact that in many countries, there were already other systems using these 5G bands, and they were repurposed… So how come those altimeters never caused a problem before? That would imply there’s a problem with the 5G.
Higher transmit powers and poorly-aimed antennas would certainly increase any interference problems, but that’s also a complicated situation that wouldn’t guarantee problems. All sorts of things (like harmonics and constructive/destructive interference) come into play and it gets hairy.
In the end, AFAIK, the only testing done in the US was computer simulations. That’s just nuts, because any engineer worth anything will tell you first do the simulations, then revise design, then more simulations, then real-world tests, then revise, etc. SOME part of that process should have answered all these questions – but instead we have a bit of a disaster that should never have happened.
And of course it’s difficult to compare one country to another honestly because different countries use different bands + equipment for 5G and different bands + equipment for altimeters!