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| Western US Wireless Forum Wireless phone services in the Western US (States: AK,AZ,CA,CO,HI,ID,MT,NV,NM,OR,UT,WA,WY) |
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| Quase Três Anos Com WA! Join Date: Sep 2003 Location: Higienópolis, São Paulo Posts: 2,234
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I was messing around with T-Mobile's coverage locator and I found a weird mess of coverage west of Phoenix. Its like a big cicle with mixed amounts of coverage in it. Why is it like that? I attached a screen shot.
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| | #2 (permalink) |
| Join Date: May 2003 Location: Campione, Italy Posts: 10,285
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It might be a boomer on top of a mountain spreading the signal like that? This looks somewhat similar of my area. |
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| | #3 (permalink) |
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Yea you have a couple of them dont ya? But why is the signal restricted to a circle?
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| | #4 (permalink) |
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I have no idea. The only explanation I can come up with is that the signal is boosted into those directions from a very powerful tower that's high up in altitude.
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| | #5 (permalink) | |
| Wireless Consultant Join Date: Feb 2002 Location: Denver Posts: 1,387
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| | #6 (permalink) |
| Go Angels! Join Date: Oct 2001 Location: Orange County, CA Posts: 12,949
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That circle of coverage is kind of odd. I noticed some weird things like that on T-Mobile's So. cal maps as well. They have one rural part of Riverside County showing a huge amount of coverage in an unpopulated mountainous area that I know they can't really be covering that well.
Last edited by larry; 10-29-2005 at 4:37 AM. |
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| In Memoriam Join Date: Mar 2002 Location: Sandy Springs, GA Posts: 1,749
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| | #8 (permalink) | |
| Quase Três Anos Com WA! Join Date: Sep 2003 Location: Higienópolis, São Paulo Posts: 2,234
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| | #9 (permalink) | |
| The Cell Phone Junkie Join Date: Jan 2002 Location: Cave Creek, AZ Posts: 2,828
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| | #10 (permalink) | |
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| | #11 (permalink) | |
| Wireless Consultant Join Date: Feb 2002 Location: Denver Posts: 1,387
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The areas with no coverage are not populated enough to justify even adding an additional sector. You'll also notice there is no coverage spot for where the actual cell site would be located...it's hard to get there. I concur with Roamer1 that the edge of these circles are at about the 35 km limit of useful GSM coverage. I was just astounded that the Colorado Springs coverage within this circle is all dark green. Also, I am guessing that this T-Mobile site is really on top of Cheyenne Mountain which has a slightly better "view" of Colorado Springs. That's where all the TV towers are, and good power, mounting locations and access would be available. Still, a very high site, and yes, that is the mountain under which NORAD headquarters is buried. | |
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| | #12 (permalink) |
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Is there a lot of outdoor activities held in the areas where there is no sector pointing to it? If so, then it would make a lot of people happy to have a usable signal in the area, and really wouldn't cost T-Mobile anything to add another sector(...it doesn't really cost a lot other than the equipment, correct?). That's one thing VZW does on some sites in rural areas here. They do add that additional sector to give coverage to places where you usually don't find a lot of people, but if you go out there for outdoor activities, people are happy their phones work.
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| | #13 (permalink) | ||
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| | #14 (permalink) | |
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| | #15 (permalink) | |
| Wireless Consultant Join Date: Feb 2002 Location: Denver Posts: 1,387
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So, a PCS signal can be almost as powerful as a cellular signal, but only in a concentrated spot. There are omnidirectional PCS antennas. They are used along roads where the only use of the signal is among drivers. Sprint has dozens of them along the roads that cross the Santa Monica Mountains in CA. I can measure the range of each of these antennas at about .7 mile, maximum. That kind of range would not be worth the cost of a full site, but does offer a reasonably-priced alternative in areas where even a directional antenna would not cover a radius beyond a half mile due to line-of-sight limitations on those curvy roads. Last edited by BillRadio; 11-05-2005 at 3:29 PM. | |
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| | #16 (permalink) |
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Very interesting, Bill. I did not know that. So bottom line is that 800 carriers don't only have better penetration because of the lower frequency, but also because they are able to use more power on their sites, correct?
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