|Quoting MrCazzy (Thread starter):|
Noticed the thread about cell phone usage on the ground and the reason behind the cell phone use. I have heard that cell phones while in the air disrupt the avionics in flight. I have also heard the opposite, could you help me clear this up for me?
Simple rule, if they tell you to switch it off, switch it off. If they say it's OK
, then it's OK
Again, it also depends on whether or not the aircraft is equipped for providing cellular service onboard, wifi onboard (different from cellular service), both, or none at all.
|Quoting jetblueguy22 (Reply 6):|
The GoGo wifi system if I remember correctly runs off a cell tower type of system.
Well, I'll add to:
|Quoting bond007 (Reply 17):|
AFAIK, GoGo towers actually have dedicated antennas that are directed a different orientation, and a dedicated system to handle in-flight data.
And Gogo's cell tower communicates with the antenna on the aircraft, which then distributes the data through wi-fi onboard, and also vice versa (collects through wifi, and channels the data through the aircraft antenna)
|Quoting jetblueguy22 (Reply 6):|
There are some airlines that do provide inflight cell phone service such as EK.
, except for the A380, there is an onboard cellular service. Your phone connects to a pico-cell/micro-BTS
onboard, which converts your communication to data, and send it through the satcom antenna, and gets converted back into a cellular connection back on the ground... for both voice and data. With the A380, the above is provided, with WiFi internet also available, through the wireless access points onboard.
In USA airspace or over US territory? Air safety regulations aside, US telecommunications regulations apply over US territory, which, as far I remember, does not allow satellite communications transmissions through a foreign service provider (regardless of satellite network used, be it US or foreign owned) for commercial purposes, to which, channeling onboard internet or onboard cellular service through the satcom, counts as 'commercial purposes'. So, Emirates, cannot provide the onboard cellular service through the Inmarsat SwiftBroadband network, provided by Aeromobile, which is not US-owned...
Other countries have similar laws, such as:
China, where when the aircraft is overflying Chinese territory, the SatCom service provider has to have an agreement with a local Chinese provider, and allow for the data transmitted over China be routed through China (either a satellite ground earth station in China, or have the data routed through China from the ground earth station before going out to the internet), or obtain clearance from the Chinese government with whatever condition is set by them.
Indonesia has the same as China and USA in terms of the telco regulations. I think India has the same.
Australia has a slightly different regulations (where it applies to Australian registered aircraft operating domestically and internationally, and foreign registered aircraft when flying between 2 points in Australia).
And then there are countries which apply their rules not just for the satcom transmissions over their territory, but also transmissions made in the cabin to the satcom system, regardless of country of aircraft register... this kind of regulations, while respecting the "law inside the cabin of an aircraft inflight is the law of the operator or aircraft registry", uses the argument that the transmissions made inside the aircraft (phone/computer to the onboard BTS
or WiFi access point), cannot be contained 100% within the cabin of the aircraft, hence the telco law of that country being overflown, effectively applies to the transmissions made from within the cabin.
So, providing the service onboard, an airline must consider:
1. Air safety regulations of the country it is based in.
2. Air safety regulations of the country it is overflying.
3. Telecommunications regulations of the country it is based in.
4. Telecommunications regulations of the country it is overflying.
This, can, and does lead to patchy service when you fly long haul that's not over water... and also a regulatory nightmare to sort out!