Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


1512 posts

Uber Geek
+1 received by user: 38


Topic # 65220 31-Jul-2010 10:23
Send private message

With aGPS how much does the reception improve by?  Let's say you are travelling in a larger city in the CBD with skyscrapers are you able to get a reception or do you still need a clear view of the sky?  Let's say you are in a narrow street with market stalls and the like.  Or if you are in a underground walk way trying to find your way around when it's very cold outside - think Japan/Korea Winter. 


Cheers.

Create new topic
487 posts

Ultimate Geek
+1 received by user: 3

Trusted

  Reply # 369702 19-Aug-2010 10:02
Send private message

AGPS helps with a few things.

It can tell the GPS where the satellites are so you get a faster lock on them etc, otherwise GPS can take a few minutes sometimes to get a lock especially if you are already moving.

Then there is the use of cell towers to help get a position, not that accurate.

Then there are location services like skyhook and google that use wifi access points also (that is why google was war driving at the same time as doing their street view photos, collecting where all the wifi access points are and recording their locations).  I would assume this is going to be a bit more accurate as there will be lots of wifi points etc.  I haven't read too much about it though.  If you have a quality sensitive GPS chip you won't be too losing signal too often even in cbd's etc.

I drove around in san francisco (downtown) and los angeles on an old garmin nuvi (260w)  with no agps etc, it had no issues really though of course if you have the choice take agps :).



1818 posts

Uber Geek
+1 received by user: 340

Subscriber

  Reply # 369757 19-Aug-2010 12:05
Send private message

Yeah, aGPS will enable a faster lock, may help in an urban jungle, but isn't really going to be of benefit underground, as such.

You still need to be outdoors to use GPS of any sort, unless it's uber-strong military grade stuff...so NOT a cellphone.




Handsome Dan Has Spoken.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Intel introduces new NUC kits and NUC mini PCs
Posted 16-Aug-2018 11:03


The Warehouse leaps into the AI future with Google
Posted 15-Aug-2018 17:56


Targus set sights on enterprise and consumer growth in New Zealand
Posted 13-Aug-2018 13:47


Huawei to distribute nova 3i in New Zealand
Posted 9-Aug-2018 16:23


Home robot Vector to be available in New Zealand stores
Posted 9-Aug-2018 14:47


Panasonic announces new 2018 OLED TV line up
Posted 7-Aug-2018 16:38


Kordia completes first live 4K TV broadcast
Posted 1-Aug-2018 13:00


Schools get safer and smarter internet with Managed Network Upgrade
Posted 30-Jul-2018 20:01


DNC wants a safer .nz in the coming year
Posted 26-Jul-2018 16:08


Auldhouse becomes an AWS Authorised Training Delivery Partner in New Zealand
Posted 26-Jul-2018 15:55


Rakuten Kobo launches Kobo Clara HD entry level reader
Posted 26-Jul-2018 15:44


Kiwi team reaches semi-finals at the Microsoft Imagine Cup
Posted 26-Jul-2018 15:38


KidsCan App to Help Kiwi Children in Need
Posted 26-Jul-2018 15:32


FUJIFILM announces new high-performance lenses
Posted 24-Jul-2018 14:57


New FUJIFILM XF10 introduces square mode for Instagram sharing
Posted 24-Jul-2018 14:44



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.