1. Welcome to Verizon Forums - the unofficial Verizon community! Have a question about Verizon? Click HERE to get started.
  2. Expecting Cell Phone Forums? We recently moved Verizon specific content to VerizonForums.com. If you previously had an account on CPF, it has been transferred!

cell phones & cash registers (was Sheetz)

Discussion in 'alt.cellular.verizon' started by Kevin Bush, Sep 17, 2003.

  1. On Thu, 18 Sep 2003 17:41:09 -0000, prom_thus@netzero.com (penael )
    wrote:

    >Airborne is OK. It's the takeoffs and landings that air-personnel want


    No, it most definitely is NOT, because of the potential for an
    airborne cell phone to interfere with hundreds of cell sites on the
    ground at once. (Besides, at typical commercial jet cruise altitudes,
    cell phones are useless anyway because there isn't enough RF signal to
    pick up thanks to the plane's shell and downtilt on cell sites, and
    jets go so fast they outrun most if not all digital protocols' timing.
    AMPS phones and phones in small turboprop/etc. GA aircraft, as opposed
    to commercial jets, are more likely to work. AIUI, the AirCell system
    marketed for use on GA aircraft is indeed AMPS-based, but the entire
    system, including cell sites, is *specifically engineered for airborne
    use*.)

    -SC
    --
    Stanley Cline -- sc1 at roamer1 dot org -- http://www.roamer1.org/
    ....
    "Never put off until tomorrow what you can do today. There might
    be a law against it by that time." -/usr/games/fortune



    › See More: cell phones & cash registers (was Sheetz)
  2. Geoff Brozny

    Geoff Brozny Guest

    "Stanley Cline" <sc1-news@roamer1.org> wrote in message
    news:cdfsmvsniikvdcgl0pikshtan1c5vp2h8k@4ax.com...

    > Alcatel 600E switches presumably hate iDEN as well. ;)


    Well, this was when they tested the circuit packs after they went though the
    surface mount machine, if you were testing a board and someone was standing
    there using a Nextel, the test would fail.. But, thinks to NAFTA, all that
    wok went to Canada, and 5k people lost there jobs.


    geoff
  3. Al Klein

    Al Klein Guest

    On Mon, 22 Sep 2003 00:08:48 GMT, Stanley Cline <sc1-news@roamer1.org>
    posted in alt.cellular.verizon:

    >but "no cell phone" signs in most other places can't be justified on
    >technical grounds.


    Gas stations and places where propane tanks are being filled, among
    other explosive atmospheres. Most cell phones aren't intrinsically
    safe.
  4. CharlesH

    CharlesH Guest

    In article <t85vmv0rp0a02m9c1ktk684u4rk0cq34un@Pern.rk>,
    Al Klein <ehxong@bcgbayvar.arg> wrote:
    >On Mon, 22 Sep 2003 00:08:48 GMT, Stanley Cline <sc1-news@roamer1.org>
    >posted in alt.cellular.verizon:
    >
    >>but "no cell phone" signs in most other places can't be justified on
    >>technical grounds.

    >
    >Gas stations and places where propane tanks are being filled, among
    >other explosive atmospheres. Most cell phones aren't intrinsically
    >safe.


    How is a transmitter with maximum power of about 200milliwatt, but
    usually down in the 10s of milliwatts, with a 3 volt battery, going to
    trigger an explosion????

    I would think a static discharge from sliding off your seat would be
    a MUCH bigger risk, not to mention the ignition system of the car,
    and I have never heard of that either.


    I suspect that the concern about cell phones and gasoline tanks descends
    from the use of 15-20 (or more) watt walkie-talkies in construction sites
    with explosives, where you really don't want to induce any current in
    the fuses.
  5. Al Klein

    Al Klein Guest

    On 23 Sep 2003 06:23:52 GMT, hoch@exemplary.invalid (CharlesH) posted
    in alt.cellular.verizon:

    >How is a transmitter with maximum power of about 200milliwatt, but
    >usually down in the 10s of milliwatts, with a 3 volt battery, going to
    >trigger an explosion????


    ANY spark can trigger an explosion in an explosive atmosphere.

    >I would think a static discharge from sliding off your seat would be
    >a MUCH bigger risk, not to mention the ignition system of the car


    They are. That's no reason to pop the battery out of your cell phone
    while you're pumping gas.

    >I suspect that the concern about cell phones and gasoline tanks descends
    >from the use of 15-20 (or more) watt walkie-talkies


    Wow. After 46 years in communications, that's the first time I've
    heard of one of those.

Welcome to VerizonForums!

Unfortunately you can't reply until you log in or sign up.


Forgot your password?