Does that include VoIP?
Despite a champion effort to nickel and dime its way to profitability, Delta Airlines knows there's still some loose money in customers' pockets to be won. The US carrier sees its passengers clinging so dearly to laptops in their alloted 30 inches of space — and today vows swift action to extract yet another fee. Delta said …
"..but voice services will be barred due to federal regulations."
Were these regulations first brought in to prevent people with mobile phones from 'interfering with vital aircraft systems' or is it some kind of strange voice-comms protectionist measure involving turf-wars and special interests?
If the first case, it's a ridiculous limitation for an aircraft data link. If the second case, the same.
Can anyone give advice on this?
If you read el Reg you will know that 'federal regs' means "don't piss off your fellow passengers with your incesant blabbering". Instead just scream at your laptop when you loose connectiviity and threaten to "throw the fcuker out the window" - beats doing it at 30000 feet rather than the usual 3rd floor.
Typical aircraft operation frequencies, while operating overland are in the ~110-400 MHz UHF and VHF bands; over oceans, they switch to (near-)worldwide HF bands in the range of ~2800-22,000 KHz. Sometimes, SATCOMMS are used as well.
Typical cell phone frequencies operate somewhere between ~800-2000 MHz spectrum, obviously depending on your carrier and phone.
The FAA's excuse about interference with vital aircraft communication systems is BS. The fact of the matter, is that cell phones were not designed to travel passed terrestrial towers as fast as a plane flies, and therein lies the interference problem... a cell phone's POSSIBLE intereference with internal aircraft comms is a remote possibility and very, very poorly documented. So, instead doing the research and giving a proper answer, the FAA decided it would just be best to ban them all together.
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