Welcome to Our WirelessAdvisor Community!

You are viewing our forums as a GUEST. Please join us so you can post and view all the pictures.
Registration is easy, fast and FREE!

On the road, can you hear him now? Good!

Discussion in 'Northeastern US Wireless Forum' started by larry, Jul 19, 2005.

  1. larry

    larry Sprint loyalist and former mod
    Senior Member

    Joined:
    Oct 2, 2001
    Messages:
    13,722
    Cell Tower Picture Gallery:
    165
    Likes Received:
    49
    Location:
    Orange County, CA
    My Phone:
    Galaxy S22+
    Wireless Provider(s):
    T-Mobile
  2. dallison

    dallison Senior Member
    Senior Member

    Joined:
    Sep 24, 2002
    Messages:
    660
    Likes Received:
    0
    wow what a setup
     
  3. Andy

    Andy Diamond Senior Member
    Senior Member

    Joined:
    May 25, 2003
    Messages:
    10,281
    Cell Tower Picture Gallery:
    130
    Likes Received:
    7
    My Phone:
    HTC Thunderbolt
    Wireless Provider(s):
    VZW, Vodafone D2, Solomo, Swisscom Mobile
    Interesting to read those kind of stories about network testing. Even though travelling along the most travelled/populated routes, it is sometimes worth it to drive on more isolated roads, because cell service is needed there too.
     
  4. jones

    jones Silver Senior Member
    Senior Member

    Joined:
    Nov 27, 2002
    Messages:
    3,424
    Likes Received:
    0
    they should now concentrate testing in the residential areas.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  5. Andy

    Andy Diamond Senior Member
    Senior Member

    Joined:
    May 25, 2003
    Messages:
    10,281
    Cell Tower Picture Gallery:
    130
    Likes Received:
    7
    My Phone:
    HTC Thunderbolt
    Wireless Provider(s):
    VZW, Vodafone D2, Solomo, Swisscom Mobile
    I'm sure they are testing residential areas, jones, but not every residential/industrial area is perfectly covered...sorry.
     
  6. chris4434

    chris4434 Junior Member
    Junior Member

    Joined:
    Jun 18, 2004
    Messages:
    121
    Likes Received:
    0
    Location:
    georgia
    My Phone:
    Motorola RAZR D&G Gold
    Wireless Provider(s):
    Cingular, Sprint PCS (cancelled), T-Mobile
    Its good that Verizon does this type of testing to help improve coverage, but it looks like they have some pretty OLD phones in the back of that SUV. They should have some newer handsets, and why do they still have an ATT phone?
     
  7. Fire14

    Fire14 Easy,Cheap & Sleazy
    Senior Member

    Joined:
    Sep 27, 2002
    Messages:
    8,446
    Cell Tower Picture Gallery:
    293
    Likes Received:
    2
    Location:
    Union County NJ
    My Phone:
    EnV
    Wireless Provider(s):
    Verizon
    That was a good read & it's interesting to see how they do the testing, now if they would hire some of us, we could do the residential & in building testing for them. :p
     
  8. whosurbud

    whosurbud Junior Member
    Junior Member

    Joined:
    Jul 5, 2003
    Messages:
    111
    Likes Received:
    1
    not to mention, if ya still need to improve your major roads and heavily travelled highways after all these years, something is up. e.g. must be major changes going on in the area?? In most areas the so-called "Major Roads" that are heavily travelled are also either elevated, or are fairly wide open. Should be very little need to still be 'optimizing' those areas in my mind, unless something was changing.

    just 2 cents.
     
  9. bobolito

    bobolito Diamond Senior Member
    Senior Member

    Joined:
    May 3, 2002
    Messages:
    12,735
    Cell Tower Picture Gallery:
    50
    Likes Received:
    53
    Location:
    in front of my computer
    My Phone:
    iPhone SE
    Wireless Provider(s):
    T-Mobile
    So minus 30 is the best he has seen? He has to be kidding. I know a few places where I've seen between minus 17 and minus 20.

    What I don't understand is why they place external antennas on those phones. Obviously that does not replicate the typical environment in which a cell phone is used, and can hide potential problem areas because the phones are normally getting better reception than normal.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  10. Yankees368

    Yankees368 Compulsive Signal Checker
    Senior Member

    Joined:
    Oct 21, 2003
    Messages:
    4,365
    Cell Tower Picture Gallery:
    876
    Likes Received:
    135
    Location:
    NYC
    My Phone:
    iPhones 4S???
    Wireless Provider(s):
    Verizon, Sprint 2002-2010, Voicestream 2001-2002
    Thats exactly what i was thinking. The phone on the far right actually looks like an old GAIT phone. If these tests are to be anywhere near accurate, they need to update the phones, get rid of the external antennas, and have several phones for each carrier. We all know that if they pick the wrong phone to test with, the results will be way off.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  11. chris4434

    chris4434 Junior Member
    Junior Member

    Joined:
    Jun 18, 2004
    Messages:
    121
    Likes Received:
    0
    Location:
    georgia
    My Phone:
    Motorola RAZR D&G Gold
    Wireless Provider(s):
    Cingular, Sprint PCS (cancelled), T-Mobile
    yeah it looks like the old nokia gait phone i had a while back with cingular... and you are right they do need to test with more than one phone from each carrier and take off the external antennas to get a more accurate reading
     
  12. larry

    larry Sprint loyalist and former mod
    Senior Member

    Joined:
    Oct 2, 2001
    Messages:
    13,722
    Cell Tower Picture Gallery:
    165
    Likes Received:
    49
    Location:
    Orange County, CA
    My Phone:
    Galaxy S22+
    Wireless Provider(s):
    T-Mobile
    And minus 96 is the worst he has seen?? I don't believe that. I've seen minus 105 many times.
     
  13. Yankees368

    Yankees368 Compulsive Signal Checker
    Senior Member

    Joined:
    Oct 21, 2003
    Messages:
    4,365
    Cell Tower Picture Gallery:
    876
    Likes Received:
    135
    Location:
    NYC
    My Phone:
    iPhones 4S???
    Wireless Provider(s):
    Verizon, Sprint 2002-2010, Voicestream 2001-2002
    I have found that -106 is the drop out point for my 7400. If this guy has only seen 96, and no higher, he is:

    A) Driving in the wrong places
    B) Does not know what he is doing
    C) Lying
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  14. larry

    larry Sprint loyalist and former mod
    Senior Member

    Joined:
    Oct 2, 2001
    Messages:
    13,722
    Cell Tower Picture Gallery:
    165
    Likes Received:
    49
    Location:
    Orange County, CA
    My Phone:
    Galaxy S22+
    Wireless Provider(s):
    T-Mobile
    I figure 99% of the population wouldn't have a clue about what those numbers mean but of course we all know here that it's not making sense.
     
  15. WirelessBeachBum

    WirelessBeachBum Soylent Green is People
    Senior Member

    Joined:
    Jul 10, 2002
    Messages:
    2,790
    Likes Received:
    16
    Location:
    Hilton Head Island, SC
    My Phone:
    Thunderbolt...still
    Wireless Provider(s):
    VZW
    From the way I read it, those numbers are just for that route...

    As for the equipment they use from other carriers, they will actually upgrade that equipment when the contract update with those other carriers.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  16. jones

    jones Silver Senior Member
    Senior Member

    Joined:
    Nov 27, 2002
    Messages:
    3,424
    Likes Received:
    0
    Their competitors are also doing this.
    They all know where their good/bad Areas are.
    They all know their Dead Zones.
    So what's the Point?
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  17. viewfly

    viewfly Mobile RF Advisor
    Senior Member

    Joined:
    Jun 22, 2003
    Messages:
    6,002
    Likes Received:
    851
    My Phone:
    iPhone XS Space Grey
    Wireless Provider(s):
    AT&T; Tmobile SIM only
    This is a hard test to really perform accurately and fairly. But I believe using external antennas is probably the fairest way. The external antenna gives a fairly uniform signal, with less RF signal fading. Afterwards a experimentally determined correction factor (ie nominal reduction factor) for the reduced expectedd signal inside the car, with the phone antenna, can be applied to all the phones. My own tests give this number to be about -10dB.

    Otherwise he would have to worry about which phone is nearer the window, in the middle of the car, or has interference with nearby phones. Notice how they place the phones in a shielded metal box to minimize the nearby effect I suppose. I also think the external antennas normalize out the the effects of each phones internal anttenna design or whether one has a stubby, verizon pull out or just by internal antenna design alone (and there are lots of designs). Probably the RF amplifiers sensitivity are the same for each phone, but a good tech can and should measure that and also correct and normalize each phone too.
     
  18. wgray8231

    wgray8231 I don't work here.
    Senior Member

    Joined:
    Aug 13, 2004
    Messages:
    1,457
    Cell Tower Picture Gallery:
    54
    Likes Received:
    2
    Location:
    Nashville, TN (SID 179)
    My Phone:
    iPhone 4 (temporary)
    Wireless Provider(s):
    AT&T
    Probably b/c the old ATT and Cingular networks aren't seamless yet. This will take a few years.

    And it may still be under contract.
     
  19. jrip

    jrip Senior Member
    Senior Member

    Joined:
    Nov 30, 2004
    Messages:
    328
    Cell Tower Picture Gallery:
    25
    Likes Received:
    0
    Location:
    W.Michigan
    My Phone:
    Sanyo MM-7400
    Wireless Provider(s):
    Sprint,Boost
    -106? Mine starts looking for service at -103dbm. So far the best I have seen is -39dbm. And that was directly under a Sprint site. So this guy has seen no worse than -96dbm. IPCS says that means your phone is recieving a very strong signal. And we should be happy for what we do get. -96dbm is about average around here, unless you can actually see the site. I have been testing with my 7400 for about a month now. IPCS's signal around here fluctuates by about +/- 10dbm. This is something I dont see in Sprint corporate markets.
     
  20. bobolito

    bobolito Diamond Senior Member
    Senior Member

    Joined:
    May 3, 2002
    Messages:
    12,735
    Cell Tower Picture Gallery:
    50
    Likes Received:
    53
    Location:
    in front of my computer
    My Phone:
    iPhone SE
    Wireless Provider(s):
    T-Mobile
    The worse I've seen is right here at home. It was -111dBm from guess who: T-Mobile. ;)
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  21. larry

    larry Sprint loyalist and former mod
    Senior Member

    Joined:
    Oct 2, 2001
    Messages:
    13,722
    Cell Tower Picture Gallery:
    165
    Likes Received:
    49
    Location:
    Orange County, CA
    My Phone:
    Galaxy S22+
    Wireless Provider(s):
    T-Mobile
    The worst I've seen is -105
     
  22. Yankees368

    Yankees368 Compulsive Signal Checker
    Senior Member

    Joined:
    Oct 21, 2003
    Messages:
    4,365
    Cell Tower Picture Gallery:
    876
    Likes Received:
    135
    Location:
    NYC
    My Phone:
    iPhones 4S???
    Wireless Provider(s):
    Verizon, Sprint 2002-2010, Voicestream 2001-2002
    I win! Wait, that's a bad thing, isnt it?
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  23. viewfly

    viewfly Mobile RF Advisor
    Senior Member

    Joined:
    Jun 22, 2003
    Messages:
    6,002
    Likes Received:
    851
    My Phone:
    iPhone XS Space Grey
    Wireless Provider(s):
    AT&T; Tmobile SIM only
    So -96dbm and - 10db correction from the antenna would give -106dbm. So maybe he is just quoting directly from his readouts, without any corrections. This might explain it, or as WirelessBeachBum said, it may be just for this route.

    This guy is trying to test signal strength at locations, not testing phones. I think he knows what he's doing. ;)
     
  24. jones

    jones Silver Senior Member
    Senior Member

    Joined:
    Nov 27, 2002
    Messages:
    3,424
    Likes Received:
    0
    or it's still Testing TDMA
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  25. Andy

    Andy Diamond Senior Member
    Senior Member

    Joined:
    May 25, 2003
    Messages:
    10,281
    Cell Tower Picture Gallery:
    130
    Likes Received:
    7
    My Phone:
    HTC Thunderbolt
    Wireless Provider(s):
    VZW, Vodafone D2, Solomo, Swisscom Mobile
    I've made a call with -106 on my old LG.
     
  26. bobolito

    bobolito Diamond Senior Member
    Senior Member

    Joined:
    May 3, 2002
    Messages:
    12,735
    Cell Tower Picture Gallery:
    50
    Likes Received:
    53
    Location:
    in front of my computer
    My Phone:
    iPhone SE
    Wireless Provider(s):
    T-Mobile
    They should hire Taxi cabs to do this testing. ;) Taxis really drive all over and can collect a lot of data in a short period of time. Imagine dozens of taxi cabs driving with their testing equipment in the trunk collecting network data. Since the equipment collects data automatically while making calls and has GPS, the taxi driver doesn't need to stop his job. At the end of the day, the network operator just goes to the taxi base and downloads the collected data from the computers to analyze.

    Crazy idea isn't it? :D
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  27. Yankees368

    Yankees368 Compulsive Signal Checker
    Senior Member

    Joined:
    Oct 21, 2003
    Messages:
    4,365
    Cell Tower Picture Gallery:
    876
    Likes Received:
    135
    Location:
    NYC
    My Phone:
    iPhones 4S???
    Wireless Provider(s):
    Verizon, Sprint 2002-2010, Voicestream 2001-2002
    It's not crazy, it's good. The only problem is where to put all of that equipment. Taxis need all the trunk room they can get.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  28. bobolito

    bobolito Diamond Senior Member
    Senior Member

    Joined:
    May 3, 2002
    Messages:
    12,735
    Cell Tower Picture Gallery:
    50
    Likes Received:
    53
    Location:
    in front of my computer
    My Phone:
    iPhone SE
    Wireless Provider(s):
    T-Mobile
    Yeah....I realize that. But I figured that with advances in technology, things can be made small enough to fit anywhere.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  29. Yankees368

    Yankees368 Compulsive Signal Checker
    Senior Member

    Joined:
    Oct 21, 2003
    Messages:
    4,365
    Cell Tower Picture Gallery:
    876
    Likes Received:
    135
    Location:
    NYC
    My Phone:
    iPhones 4S???
    Wireless Provider(s):
    Verizon, Sprint 2002-2010, Voicestream 2001-2002
    Besides the space issue, I think its a great idea. If i were in charge of the testing, i would seriously consider that idea.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  30. jones

    jones Silver Senior Member
    Senior Member

    Joined:
    Nov 27, 2002
    Messages:
    3,424
    Likes Received:
    0
    Most testing are also Done by 3rd party groups,
    like Outsoucing.
    So one trip route data can be sold
    to 3 or more carriers.
    So it saves them Money already.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...

Share This Page

Copyright 1997-2022 Wireless Advisor™, LLC. All rights reserved. All registered and unregistered trademarks are the property of their respective holders.
WirelessAdvisor.com is not associated by ownership or membership with any cellular, PCS or wireless service provider companies and is not meant to be an endorsement of any company or service. Some links on these pages may be paid advertising or paid affiliate programs.

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice