Subject: | |
From: | |
Reply To: | |
Date: | Tue, 15 Jan 2002 14:14:02 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
The other thing to bear in mind is that the airphones are specifically
designed for use in aircraft.
----- Original Message -----
From: "JEFFREY MICHAEL KENYON" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 14, 2002 5:06 PM
Subject: Re: using 2-meters a board an air craft
Well, the phones on plains are close to but not on the same freqs as
cellular, and like I said before with cellular your phone will roam all
over the place at 20000 feet if it can with 1000 feet in a sky
scraper. Also, the airline cell phones are also digital, but I'm not sure
on the modulation.
On Mon, 14 Jan 2002, Walt Smith wrote:
> That's always been the rule. They're much more stringent during takeoffs
> and landings than while in routine flight. It's only a guess, but I think
> this is because the spacing of planes is much more critical at these
times,
> so there isn't as much time to ask for a retransmission of a radio contact
> between ground and plane if one is garbled by on-board consumer electronic
> gear.
>
> BTW, as a matter of general information, the telephones that are used in
> commercial aircraft (the ones you put your credit card in) aren't
"standard"
> cell phones, or so I've been told. They use different frequencies and the
> system has been specifically designed not to conflict with avionics. The
> statement that it's only a money issue simply isn't the case ... you're
not
> forbidden to use your cell phone merely because they want the money from
use
> of the installed system; the two systems aren't the same and the one has
> been designed specifically for use in commercial aircraft.
>
> --
> Walt Smith - Raleigh, NC
> [log in to unmask]
>
|
|
|