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  1. #1
    David L
    Guest
    External Antenna and Cellular SIgnal Boosters Links Tutorial

    I have done some research over the years with help from many of you on
    these forums. I've found a Antennex 9db, 6 element Yagi antenna + Times
    Micro LMR-195 cable, works for my portable outdoor camping signal
    boosting needs.
    I have not used a signal booster, but others have claimed good results.
    The cost is fairly expensive, but not being tethered to the cable
    leading to an external antenna must be very attractive, to those who's
    only phone connection is a cellular phone, like at a remote home/cabin,
    requiring it to be connected to an external antenna 24/7, in order to
    make and receive any calls. The home doesn't even need to be a remote
    cabin, just one that gets a poor quality Verizon signal, which an
    external antenna would overcome.
    I have some links that have been helpful in not only getting some good
    advice and products, but in understanding antenna basics enough to
    begin asking the right kind of questions about the kind of equipment
    needed and proper set up.

    Since I have never used a booster, or found it necessary, I'd like to
    find out what booster equipment owners are using and how much it cos to
    set up.
    How well does it work and are there any call quality glitches?
    How far from the internal repeater antenna does one need to be? Looking
    for any cell phone booster users to see what brand they have the set up
    and how it works.

    I'm still looking for anyone who is using a panel a 7db antenna as
    shown on Critrerionwireless site. I'd like to use one for
    portable/backpack use. It's small enough to carry easily and then use
    the phone's debug menu to aim for best signal. Apparently, they do not
    need to be aimed as closely as a Yagi. The panels don't have quite the
    amplifying capability as a Yagi, but they don't need a ground plane and
    also work on 1900mhz/PCS frequencies. Also would appears they would
    have more gain than an omnimount 3db . A small panel that needs no
    groundplane and the ability to aim for better reception sounds ideal
    for my usage. Just want some users report before buying one.

    A few important points. The phone needs to have a hard wire external
    antenna adapter connection port to get the best signal from an external
    antenna. Use quality connecting cable to the antenna and phone elements
    to reduce signal loss over the cable. Thicker cable is better
    especially for long runs.
    Most important! Follow specific grounding wire set up and codes for
    external antenna/mast structures, to avoid electrocution from
    lightening or a downed power line, making an unexpected connection with
    your antenna system.

    -
    David


    Antenna reception Tutorial

    http://www.criterioncellular.com/tut...reception.html


    Criterion Wireless Antennas Repeater Antennex Yagi etc. Custom cut and
    terminated cable lengths

    http://www.criterioncellular.com/repeaters/index.


    Antenna reception Q&A Forum

    http://www.cellantenna.com/.cgi-bin/ultimatebb.cgi


    Cellantenna.com Booster repeaters antennas etc.

    http://www.cellantenna.com/


    Wilson Antennas

    http://www.wilsonelectronics.com/


    CDMA Antenna FAQ

    http://home.san.rr.com/denbeste/antenna.html




    See More: External Antenna Tutorial, Forum, Boosters, Yagi, Panel, LINKS & Q's




  2. #2
    Larry
    Guest

    Re: External Antenna Tutorial, Forum, Boosters, Yagi, Panel, LINKS & Q's

    "David L" <[email protected]> wrote in
    news:[email protected]:

    > Since I have never used a booster, or found it necessary, I'd like to
    > find out what booster equipment owners are using and how much it cos to
    > set up.
    >


    I've had the Cellantenna.com DA4000 for years. It turns your little
    toyphone milliwatt transmitter into a bagphone transmitter ONLY when you
    are out in the fringe. On CDMA, instructions from the tower tell the phone
    to turn down its power until the tower sees all the users fairly level on
    that channel, the only way a shared channel receiver can switch this fast
    without being swamped. So, what the amp gives you on CDMA is simply a 20
    db or so higher CEILING of output power. It will also cause the cell you
    are closer to to turn down the power an extra 20 db to compensate for the
    amp's output....plus any db the antenna system gain is adding. Batteries
    last very long transmitting through the amp, unless you are in fringe.

    Of course, on AMPS, the non-functional 150-200mw phone now has a bagphone
    transmitter running 3W into a decent antenna in a better location than
    heating up your brains. The toyphone now has bagphone range, like a real
    cellphone used to.

    Of course, the company isn't too please as when you're in between cells,
    running more than signal generator-size power, you are heard in way too
    many cells reducing revenue/sq mi....They view this as a bad thing....(c;

    It'll make a toyphone work in the Francis Marion National Forest where it
    had no chance of any connections on any company cell, before....especially
    if I hook it to the 11 element Decibel Products paging beam at 30'...(c;

    --
    Larry



  3. #3
    David L
    Guest

    Re: External Antenna Tutorial, Forum, Boosters, Yagi, Panel, LINKS & Q's

    Hey Larry!

    So the Dynamic Power Control of the CDMA system keeps the total
    amplified signal from going over the CDMA spec.
    So the CDMA signal going through the booster isn't allowed to boost the
    CDMA signal strength beyond what the phone could put out without it
    hooked up?
    Or simply, the booster does nothing at all to boost CDMA signal?
    Under any circumstances does the booster help with CDMA reception?

    At least it's a good emergency 3 watt amps booster! I suppose when
    brodcasting at higher than rated power levels, one needs to be
    responsible for the overall network and other callers needs as well.

    That's funny, I get a picture of you lugging around a 12 volt car
    battery to power the booster and then noticing the little cell phone
    battery lasts much longer

    thanks for all the tips,
    David




  4. #4
    David S
    Guest

    Re: External Antenna Tutorial, Forum, Boosters, Yagi, Panel, LINKS & Q's

    On Sat, 10 Sep 2005 21:43:16 -0400, Larry <[email protected]> chose to add
    this to the great equation of life, the universe, and everything:

    > On CDMA, instructions from the tower tell the phone
    >to turn down its power until the tower sees all the users fairly level on
    >that channel, the only way a shared channel receiver can switch this fast
    >without being swamped. So, what the amp gives you on CDMA is simply a 20
    >db or so higher CEILING of output power.


    Wow! Larry DOES understand! Who knew?

    --
    David Streeter, "an internet god" -- Dave Barry
    http://home.att.net/~dwstreeter
    Remove the naughty bit from my address to reply
    Expect a train on ANY track at ANY time.
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    Women in Education




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