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If it was Vodaphone, it's highly unlikely its now on NextG. More likely Telstra GSM 2G.Quote:
Originally Posted by PhilipA
Which in turn might be part of the tower triangulation issues you're having, if there's marginal 2G service.
Does the Sim card have NextG on it? Or just Telstra?
Regards
Max P
I used my NextG SIM from my existing post paid Telstra account which I have had a ZTE phone on for 4 years.
The Iphone shows "3G" on the top bar.
BTW my post should have read Gigs instead of megs
Regards Philip A
It must have picked up the old 2100 MHZ network. Most unlikely it has 850MHZ if it was sourced from Vodaphone.
It may shut up shop on you in the nest few months
Earlier 3G (2100MHz) Mobile Devices - Telstra
Regards
Max P
If I look at the Apple site specs of the 3Gs it states that it works on 850Mhz.
My SIM is a Telstra Next G sim post paid.
There doesn't seem to be anywhere in settings that I can tell which mhz it is working on, but at Avoca beach I would think GSM.
OK how do I find out what Mhz it is working on?
Regards Philip A
Yes looks as though I'm wrong, it seems to be the same spec across all carriers.
http://forums.whirlpool.net.au/archive/1497444
Regards
Max P
No, I wasn't mixing up data and location services. My understanding is the iPhone uses A-GPS which uses cell information to speed up triangulation. Some telcos count that information as chargeable data downloadQuote:
Originally Posted by mikehzz
I know my wife's iPhone will get GPS lock and position several minuites quicker than mine. Her iPhone has a cellular data turned on. I'll turn off cellular data on hers to see what difference it makes.
Ron you are correct that it is agps, but there isn't any data usage in that part of the phone traffic. Your phone pings the towers at regular intervals whether data is on or off as part of maintaing cell phone access. The police can locate you if your phone is on and they know your number as the phone company can triangulate your position from these pings. There is a stink going on about how iphones are saving location data and tracking people 'secretly' even with the location service turned off. Technically, if you have service then the iphone should get its position just as quickly with data turned on or off. I know mine does because I turn data off overseas but still use the Sygic gps application and the time to get a fix is the same.
I quite like the iphone but it's gps is very ordinary, much worse than my previous windows phone. Out in the sticks with no service and you can wait 20 minutes for a fix and then lose it if some cloud comes over.
This GPSR thing is interesting.
I looked up the Telstra Cell map and I am just about equidistant from 3 , Bouddi, Kincumber Mountain and Terrigal, all only about 5Km. And I am just about in the middle of a triangle.
It should be easy to calculate the triangulation . The only thing I can think of is that the Kincumber Mountain cell is shielded by the ridge I am behind and the phone calculates the distance between Terrigal and Bouddi and puts me halfway, which is to the east of my position about 1KM on Cape Three Points Rd not Franklin Avenue.
But 1 Km seems a hell of an error.
I have checked the "networks" setting and it is receiving/using Telstra , while Optus and Vodaphone are also picked up as "available"
Learn something every day.
This suggests to dumb me that the algorthym just compares the signal time difference between the towers, not absolute time. Pretty useless in hilly country and if no GPS then you could seriously misdirect say rescuers.
Another problem I seem to have is that the touch pressure required by the screen seems to vary wildly from feather to punch. It was very frustrating yesterday as I was trying to take a picture of the giant surf to frustrate my son in law.LOL.
I know my son just says to whack it in the centre and it seems to go back to normal. The screen was replaced a few months ago as guess what he dropped it.
Regards Philip A
Phillip, expecting a GPS to get a good fix indoors is just silly ;)
Add to that, mountain ridge, etc... and no wonder it had error..
GPS is for OUTDOORS :cool:
Doesnt hurt, considering the phone has been dropped, had other stuff on it etc.. to do a full re-boot or restore...
For the record... I've had 2x 3G, 2x 3GS and now have 2x iPhone 4 and all have been exemplary in their behaviour...
And ours are operated on boats, got sprays on by rain and around large amounts of iron ore dust.... Which loves to get in everywhere...
Friends with ANdroid phones seem to reboot quite often from what they are telling me...
Tombie I am well aware of that . I meant to say GPRS ( I said GPSR and now looking at definitions I should have said A-GPS) which I understand to be the name of the location system using cell towers as a location method. I was just pointing out that in practical terms it seems very unreliable, as if one of three towers is obscured then the location is entirely wrong and would be less than helpful if you were say stuck in a valley or under thick tree cover and AFAIK there is no way to tell on the Iphone whether it is GPS or A-GPS fix.Quote:
Phillip, expecting a GPS to get a good fix indoors is just silly ;)
I am happy that you have had reliable service from your phones. Unfortunatley the 120 pages of complaints on the Apple users forums illustrate that many many people have problems.
If you didn't update from iOS 3.1.3 to iOS 4.3.2 on your 3Gs you would have no problems as I understand it. It is people who updated on the prompt in Itunes from Apple who have the problem.
I have restored the phone twice now. After the first restore it seemed worse than after only update , but after the second restore it seems to be much better but still not good. For example to get the zoom to work on the camera is almost impossible and in practical terms useless. Also it seems to still have a five second delay to switch from one function eg compass and then try to change the parameters of the compass from magnetic to true.
The problem is that Apple do not make iOS 3.1.3 available as an option on their site and it is very difficult to remove 4.3.2 especially on a windows laptop , and when I have not got the old iOS saved , as I was given the phone with 4.3.2 on it.
I have Googled extensively , download supposed fixes and searched my itunes files for the location for the downloaded files without success. It would appear that the latest itunes versions don't have a file like Library/itunes /Iphone/iphonesoftwareupdate (which I think is a Mac file anyway). A seach of file names with Iphone.**** and iphonesoftwareupdate.**** revealed nil.
Anyway, I will soldier on . If any tech heads here know of a revert program for Windows Vista and itunes 10.2.2.12, I would appreciate it.
Regards Philip A