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  1. #16
    Intel Inside
    Guest

    Re: 3G phone with good reception?

    "but wether the single 850MHz UMTS cell has the same sized foot-print of the
    original
    850MHz CDMA cell is open to debate..."

    As the saying says ... Time will tell


    "Paul Day" <[email protected]> wrote in message
    news:[email protected]...
    > On Thu, 27 Jul 2006 08:44:46 +1000 thegoons may have written:
    >> > Yes. 850MHz will propagate further than 2100MHz and Sol's buddies
    >> > are putting effort into the deployment because they _need_ it to
    >> > meet CDMA's footprint.

    >>
    >> no they don't. so what if it does not meet cdma footprint. no legal
    >> way they can be forced to provide it, apart from a bull**** promise
    >> that was given to coonan.

    >
    > Yes, sorry - you're dead right. They've _promised_ it will meet CDMA's
    > footprint. But the Senate Estimates transcripts show there is _nothing_
    > mroe than a promise. The government enquired about putting it in a
    > contract, Telstra said "Why do we need a contract? We've made a
    > promise!" and not much more has happenned that I've seen.
    >
    > I can't see much reason why they'd save a few bucks by decommissioning a
    > CDMA site completely rather than re-using it for UMTS, but wether the
    > single 850MHz UMTS cell has the same sized foot-print of the original
    > 850MHz CDMA cell is open to debate...
    >
    > PD
    >
    > --
    > Paul Day
    > Web: http://www.enigma.id.au/






    See More: 3G phone with good reception?




  2. #17

    Re: 3G phone with good reception?


    Jeremy Quirke wrote:
    > <[email protected]> wrote in message
    > news:[email protected]...
    > >
    > > That's an interesting test Paul and you are right- it is strange to be
    > > seeing difference in singal level of 18 to 30 dB.
    > >
    > > A couple of questions- what software were you using on the PC to read
    > > the signal strength? Are you also able to see the GSM channel number
    > > you are on? (what I'm getting at is that you should be certain that
    > > when comparing the phones performance- you should be certain they are
    > > all on the same channel.)
    > >
    > > Also- were the difference similar for the two different operators - or
    > > just one?
    > >
    > > Fred
    > >

    >
    > It's possible he was looking at C1/C2 values, which are on a logarithmic
    > scale and derived from RLA but also depend on BCCH parameters which can vary
    > from cell to cell (particular GSM900 vs GSM1800).


    The two devices are probably on different BTSs. 30dB is a masssive
    difference - no way there could be that much difference in sensitivity.




  3. #18

    Re: 3G phone with good reception?

    Paul Day wrote:
    > On 25 Jul 2006 06:10:26 -0700 [email protected] may have written:
    > > A couple of questions- what software were you using on the PC

    >
    > It was done using a program called BluePhoneElite under Mac OS X. It's a
    > Bluetooth mobile utility with modular mobile configuration so the
    > program knows how to query each model for SMSs, signal strength,
    > converting signal strength to dBm etc.


    I would like to run this same test using some LG UMTS phones to find
    out how they compare for signal quality to a Nokia 2G. But I don't
    have a Mac.

    Can anyone suggest some software for the PC that does this? Preferably
    free software

    Cheers,
    Jason




  4. #19
    John Henderson
    Guest

    Re: 3G phone with good reception?

    [email protected] wrote:

    > I would like to run this same test using some LG UMTS phones
    > to find out how they compare for signal quality to a Nokia 2G.
    > But I don't have a Mac.
    >
    > Can anyone suggest some software for the PC that does this?
    > Preferably free software


    You could fire up a Hyperterminal session and use the standard
    cellular signal quality query command

    AT+CSQ

    interactively. You'll get a result like "+CSQ: 19,99". The
    figure to the left of the comma is RSSI (signal strength). To
    convert it to dBm, double it and subtract 113 from it. So in
    this example, I'm seeing -75 dBm ((19 * 2) - 113).

    You can download a copy of 3GPP technical specification 27.007
    and use further netmonitoring-type commands like "AT+CREG"
    (check syntax variations) to read off the location area code
    and serving cell ID number.

    John



  5. #20
    Alice
    Guest

    Re: 3G phone with good reception?

    [email protected] wrote:

    > I would like to run this same test using some LG UMTS phones to find
    > out how they compare for signal quality to a Nokia 2G. But I don't
    > have a Mac.


    Or a brain, for that matter.
    >
    > Can anyone suggest some software for the PC that does this? Preferably
    > free software


    Just save your lunch money from school, kiddo.

    :-)



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