Home PageFacebookRSS News Feed
PocketGPS
Web
SatNav,GPS,Navigation
Pocket GPS World - SatNavs | GPS | Speed Cameras: Forums

Pocket GPS World :: View topic - Traffic data quality - TMC-RDS Traffic vs. GPRS Traffic
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in for private messagesLog in for private messages   Log inLog in 

Traffic data quality - TMC-RDS Traffic vs. GPRS Traffic

 
Post new topic   Reply to topic    Pocket GPS World Forum Index -> TomTom Portable Navigation Devices
View previous topic :: View next topic  
Author Message
muddymickey
Occasional Visitor


Joined: Oct 08, 2009
Posts: 7

PostPosted: Thu Oct 08, 2009 12:16 pm    Post subject: Traffic data quality - TMC-RDS Traffic vs. GPRS Traffic Reply with quote

Hi all

First post on here Smile

I have a TT 520T device, with the RDS-TMC traffic receiver.
I'm having issues with the RDS-TMC service (which I'll discuss elsewhere after I've tried all the fixes detailed on here!). So I thought I might try the GPRS-based service.

So I was wondering if there was any difference in the quality of traffic information received via the GPRS Traffic service, and RDS-TMC traffic ?
Or is is basically identical data just delievered via different means ?

(Note: I'm not referring to HD traffic)

Thanks!
Back to top
View user's profile Send private message
DennisN
Tired Old Man
Tired Old Man


Joined: Feb 27, 2006
Posts: 14886
Location: Keynsham

PostPosted: Fri Oct 09, 2009 12:09 am    Post subject: Reply with quote

I believe the main differences are that GPRS is not dependent on FM Radio transmission, so there are likely to be fewer connection problems and that the GPRS service gives you countrywide downloads (if you're at Land's End, you still get the traffic jams in John 'o Groats), whereas RDS-TMC is less wide ranging (75-100 miles radius of where you are, updating its coverage as you drive).

I haven't used both together seriously to compare (on separate devices, you can't run both simultaneously on one TT). But my opinion is I wouldn't subscribe to GPRS if I had RDS-TMC, because I think they are basically the same. My RDS-TMC works well enough, but the data is not a lot of use, so to get better reception of the same stuff I've never been tempted to subscribe.

I know you said not HD, but I'll add I shall be joining up for Live services, but NOT for the HD Traffic, which I find better, but not good enough to subscribe for.
_________________
Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!
Back to top
View user's profile Send private message
hazzamon
Occasional Visitor


Joined: Dec 06, 2008
Posts: 31

PostPosted: Wed Oct 14, 2009 4:43 pm    Post subject: Reply with quote

DennisN wrote:
the GPRS service gives you countrywide downloads (if you're at Land's End, you still get the traffic jams in John 'o Groats), whereas RDS-TMC is less wide ranging (75-100 miles radius of where you are, updating its coverage as you drive).


I get GPRS traffic on my GO 520, I'm in Hampshire and it only gives me traffic markers to just north of Birmingham.
Back to top
View user's profile Send private message
DennisN
Tired Old Man
Tired Old Man


Joined: Feb 27, 2006
Posts: 14886
Location: Keynsham

PostPosted: Wed Oct 14, 2009 5:49 pm    Post subject: Reply with quote

hazzamon wrote:
DennisN wrote:
the GPRS service gives you countrywide downloads (if you're at Land's End, you still get the traffic jams in John 'o Groats), whereas RDS-TMC is less wide ranging (75-100 miles radius of where you are, updating its coverage as you drive).

I get GPRS traffic on my GO 520, I'm in Hampshire and it only gives me traffic markers to just north of Birmingham.

Then I stand corrected - I don't have GPRS Traffic so my information was not first hand, I was quoting what I think I've seen often on this forum - teach me a lesson to not quote and use personal experience instead!
_________________
Dennis

If it tastes good - it's fattening.

Two of them are obesiting!!
Back to top
View user's profile Send private message
jimbo_hippo
Frequent Visitor


Joined: May 18, 2005
Posts: 444

PostPosted: Thu Oct 15, 2009 11:46 am    Post subject: Reply with quote

I have used both extensively up and down the country.

With RDS TMC you get regional unreliable, out of date information with major things missing. With GPRS traffic you get national unreliable, out of date information with major things missing.

I live in North Yorkshire where they're widening the A1(M) and there are roads OFFICIALLY closed for long term changes. Do Tom Tom tell you that? Hell no. You have to learn the hard way that Dishford Road being closed means a 3 junction treck around.

Haven't posted for a while. Good to be back and grumbling again.

In short 2 different ways of receiving the same rubbish data.
_________________
Tom Tom GO 720
Orange M3100, Orange SPV M5000
TomTom Navigator 6, Destinator 6
Holux GPSslim
Back to top
View user's profile Send private message
maca2
Frequent Visitor


Joined: Jul 10, 2005
Posts: 303

PostPosted: Thu Oct 15, 2009 2:06 pm    Post subject: Reply with quote

Same rubbish but one is free & that's the one I use & I think it works very well, it has for me anyways.
Back to top
View user's profile Send private message







Posted: Today    Post subject: Pocket GPS Advertising

Back to top
Display posts from previous:   
Post new topic   Reply to topic    Pocket GPS World Forum Index -> TomTom Portable Navigation Devices All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Make a Donation



CamerAlert Database

Click here for the PocketGPSWorld.com Speed Camera Database

Download Speed Camera Database
21.093 (20 Sep 23)



WORLDWIDE SPEED CAMERA SPOTTERS WANTED!

Click here to submit camera positions to the PocketGPSWorld.com Speed Camera Database


12mth Subscriber memberships awarded every week for verified new camera reports!

Submit Speed Camera Locations Now


CamerAlert Apps



iOS QR Code






Android QR Code







Terms & Privacy


GPS Shopping