Cellular Phone Forum / Providers / Verizon / August 2003
Verizon AMPS only areas
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jeff - 26 Aug 2003 12:17 GMT Does Verizon have any AMPS only Areas? ANy maps showing that area? Thanks
Trido
Larry W4CSC - 26 Aug 2003 13:19 GMT Pick any place in the country that was serviced by a company VZW or GTE bought out away from the interstate by 10 miles. Voila! You're in AMPS COUNTRY!
Toyphones with 2 miles tops range don't work, even in flat land, when the trees are dense and the towers are 10 miles apart, on any modulation scheme. 200 mw of transmitter power just don't go that far, no matter what the advertising department spins. It's just physics. Every pine needle across The South is one big microwave absorber, right on 800 Mhz, too!
Out in the country.........
POWER IS OUR FRIEND!
>Does Verizon have any AMPS only Areas? >ANy maps showing that area? >Thanks > >Trido Larry W4CSC
Maybe we could get the power grid fixed if every politician regulating the power companies wasn't on their payrolls.
Steven J Sobol - 26 Aug 2003 15:35 GMT > Pick any place in the country that was serviced by a company VZW or > GTE bought out away from the interstate by 10 miles. Voila! You're > in AMPS COUNTRY! Wrong.
My parent's house is more than 10 miles from the freeway and I have plenty of CDMA digital service there. :)
[Granted, northeast Ohio is flat, which makes it easier to cover it.]
 Signature JustThe.net Internet & Multimedia Services 22674 Motnocab Road * Apple Valley, CA 92307-1950 Steve Sobol, Proprietor 888.480.4NET (4638) * 248.724.4NET * sjsobol@JustThe.net
Hopper - 26 Aug 2003 15:57 GMT > Pick any place in the country that was serviced by a company VZW or > GTE bought out away from the interstate by 10 miles. Voila! You're > in AMPS COUNTRY! Indeed, this is perhaps the most ignorant thing I have read in a great while.
John s - 30 Aug 2003 04:18 GMT > > Pick any place in the country that was serviced by a company VZW or > > GTE bought out away from the interstate by 10 miles. Voila! You're > > in AMPS COUNTRY! > > Indeed, this is perhaps the most ignorant thing I have read in a great > while. Wait until tomorrow for something worse. Larry will not disappoint you!
Bruce Clark - 26 Aug 2003 17:38 GMT > Pick any place in the country that was serviced by a company VZW or > GTE bought out away from the interstate by 10 miles. Voila! You're [quoted text clipped - 10 lines] > > POWER IS OUR FRIEND! What a dumb a.s statement to say. Out here in the Northwest, in the rural areas, the CDMA digital sites are place high on mountains with lots of gain in the antennas. You can (with 200 mw) talk on the same site for many miles. And this is hundreds of miles from an interstate. I've often talked on mine in test mode where I can watch transmitter output. Much of the time, the phone is running around +10dbm which is 10mw even in very remote rural areas. So even if you had a 3watt transmitter, you would be only running 10mw. Output power is controlled by the base station. Adding a 3 watt amp will give you more margin to hold a site when you are running off the edge of the coverage. But the extra 11.7dbm @ 850Mhz in most cases gives you another couple thousand feet as you dip behind a mountain that blocks your path.
200mw == +23dbm 3000mw (3 watts) == +34.7dbm
Many "toy phones" as Larry calls them put out more power on AMPS than on CDMA. This combined with the fact that AMPS uses a dedicated channel, allows you to get a wee bit more coverage unless you get into overlap problems which AMPS handles very badly. But as the carriers start to try and carry more and more traffic on existing cell sites, they are reducing the number of channels they will allow sites to use for AMPS. This is not a problem in the rural areas - and most likely never will be. But in dense population areas, and as they upgrade their backhauls to carry more traffic, they will likely make fewer AMPS channels available. Remember CdmaOne is 10–12 times more effecient at bandwidth usage. i.e. 10-12 voice channels for every one AMPS in the same bandwidth. Cdma2000 1x, supports between 1.5 and 2 times the number of voice channels as a standard CDMA system. Cdma2000 1x is 21 times more efficient than analog cellular and 4 times more efficient than TDMA networks.
Bruce
Larry W4CSC - 27 Aug 2003 04:04 GMT Jesus! Path Loss calculations are out the window with cellular FM! (Fuckin' Magic!)
>> Pick any place in the country that was serviced by a company VZW or >> GTE bought out away from the interstate by 10 miles. Voila! You're [quoted text clipped - 36 lines] > >Bruce Larry W4CSC
Maybe we could get the power grid fixed if every politician regulating the power companies wasn't on their payrolls.
XFF - 26 Aug 2003 18:56 GMT > Pick any place in the country that was serviced by a company VZW or > GTE bought out away from the interstate by 10 miles. Voila! You're > in AMPS COUNTRY! What the hell are you talking about? Other than Shentel and Price Communications, which were purchased only recently, I don't think there are ANY analog-only areas left in VZW's network. All the other remaining analog-only areas have been upgraded this year to CDMA2000 (with the exeption of much of ND which for some reason has been upgraded to cdmaOne instead).
> Toyphones with 2 miles tops range don't work, even in flat land, when > the trees are dense and the towers are 10 miles apart, on any > modulation scheme. 200 mw of transmitter power just don't go that > far, no matter what the advertising department spins. It's just > physics. Every pine needle across The South is one big microwave > absorber, right on 800 Mhz, too! We already talked about the physics several times, read Google if you forgot it again. That aside, plenty of anectodal evidence suggests otherwise and proves you wrong.
PS: Before you go into a rant or call me names, I have nothing against analog, in fact I'm a big proponent of analog-capable phones, but let's not distort the facts just to make a moot point, ok?
p lane - 26 Aug 2003 23:24 GMT I feel like i'm in a rural area, zvw went digital here over a year ago, even though amp is still on--but there are new areas where there is only digital.
xff@austin.rr.com (XFF) wrote in article <298d9cbf.0308260956.26d15f6e@posting.google.com>:
> > Pick any place in the country that was serviced by a company VZW or > > GTE bought out away from the interstate by 10 miles. Voila! You're [quoted text clipped - 21 lines] > analog, in fact I'm a big proponent of analog-capable phones, but > let's not distort the facts just to make a moot point, ok? Bozo The Clown - 26 Aug 2003 17:12 GMT trido@yahoo.com (jeff) wrote in article <jlH2b.201563$It4.96195@rwcrnsc51.ops.asp.att.net>:
> Does Verizon have any AMPS only Areas? > ANy maps showing that area? > Thanks > > Trido As others have pointed out, it's not the Verizon areas that are AMPS, but roaming partners with Verizon have AMPS. For example in New England, an all-digital phone will get you no coverage in Northern NH, Southern VT, and most of Maine (once you get north of Portland). I'm sure the same is true for other parts of the country as well.
Verizon has an AC "digital only" map which should tell you what areas you wouldn't get coverage from a digital only phone.
Real Estate Agent - 27 Aug 2003 11:28 GMT "jeff" asked:
> Does Verizon have any AMPS only Areas? > ANy maps showing that area? > Thanks Trido: What's the REAL question? Is it about Verizon, or is it about ANY area where only analog service is available?
Your question is so specific that it's non-specific. Are you wondering where you will not be able to make a call if you have a phone which does not have analog capability? If so, yes...there are some maps available to give you an indicator. And while these analog-only areas are shrinking, some big chunks of real estate remain.
-Paul-
jeff - 27 Aug 2003 12:19 GMT >"jeff" asked: >> Does Verizon have any AMPS only Areas? [quoted text clipped - 8 lines] >where you will not be able to make a call if you have a phone which does not >have analog capability?Yes I want to know from Southern Ind to Destin,Fl if any area is AMPS casue I only have a didi Verizon phone. If so, yes...there are some maps available to give
>you an indicator. And while these analog-only areas are shrinking, some big >chunks of real estate remain. > >-Paul- Real Estate Agent - 28 Aug 2003 11:47 GMT "jeff" Responded: Yes I want to know from Southern Ind to Destin,Fl if any area is AMPS casue I only have a didi Verizon phone.
> If so, yes...there are some maps available to give > >you an indicator. Jeff:
Try this: http://www.meetmyattorney.com/cellular/archives/000238.html
One of our participants recently referred me to this set of maps. Based upon actual travel experience, I have found to be very accurate as of, say, two years ago. If there are any changes, they will be an increase in the number of areas where digital is available.
Fortunately for travelers, there have been many improvements along Interstate highways--which I assume you will be driving.
Have a good trip! And don't forget the external antenna! If you roll through North Carolina, honk and wave!
-Paul-
P.S. Either by-pass South Carolina, or get Larry to meet you at the border to stamp your passport.
On 8/28/03 6:47 AM, in article R4l3b.26379$J16.1537020@twister.southeast.rr.com, "Real Estate Agent" <spamblockCaryRealtor@nc.rr.com> wrote:
> "jeff" Responded: > Yes I want to know from Southern Ind to Destin,Fl if any area is AMPS casue [quoted text clipped - 22 lines] > P.S. Either by-pass South Carolina, or get Larry to meet you at the border > to stamp your passport. What do the red areas mean on those maps like the Southern one?...it says they are CDPD..what is CDPD?
Larry W4CSC - 28 Aug 2003 16:48 GMT The digital blue coverage in Eastern SC is a pipedream away from I-26, US 17, I-95 and US 52 from Charleston to about 8 mi N of Moncks Corner. US 17A is all blue on this map. Digital service on it is around Walterboro, Summerville to Moncks Corner then AMPS from 5 miles N of Moncks Corner to 5 miles SW of Georgetown.
The AMPS holes in the blue blob are much larger than depicted unless you have a 3W linear amp and 6dB antenna on top of the car for the toyphone to use. Then it would be fairly accurate.
The big hole N of the letters SC on the map would be a little longer north to south going N out of Sumter, where even a 3W bagphone on a 9 dB antenna can only hilltop connect. My CDMA phone, prior to taking Sprint PCS out of the PRL, had Sprint coverage in Camden, SC, north.
Thanks for the map. It's much more truthful than anything the company flacks put out.
In all fairness, I was never out of "somebody's" coverage from Charleston, SC to Satellite Beach, FL on 800 Mhz AMPS down I-95 with the phone in STD A/B the entire trip. I didn't check, and didn't really care, who's phone system it was connected to during the van trip down to get a 41' ketch we sailed home. Within 60-70 miles of shore, with an 11 dB Decibel Products 800 Mhz paging system 11 element beam hung from the port spreaders of the mainmast up about 40' pointed westerly, I had great AMPS service way out to sea. I lost 'em all as we went over the horizon traveling N on 80W longitude up to 95 miles offshore. The bagphone was on the boat's 12V house batteries all the way home at the nav station and as we came back towards the coast out of Georgia, I had good pickup back inside the 60 mile offshore curve when we all called home to tell families we were OK after an exciting time passing through the cold front in 16' swells and impressive thunderstorms...(c;
Can't wait to do it again, soon.......
>"jeff" Responded: >Yes I want to know from Southern Ind to Destin,Fl if any area is AMPS casue [quoted text clipped - 22 lines] >P.S. Either by-pass South Carolina, or get Larry to meet you at the border >to stamp your passport. Larry W4CSC
Isn't it becoming more practical by the day to make Iraq's desert the new World Nuclear Waste Disposal Site?
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