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Joined: Nov 04, 2003 Posts: 2225 Location: Bedfordshire, UK
Posted: Sat Aug 04, 2007 10:28 am Post subject:
SpeedCam wrote:
What surprises me is why other manufacturers can produce a TMC unit.
A lot of manufacturers can produce portable TMC units. All those manufacturers seem to have units which work in the US and across most of mainland Europe, but all of them have problems in the UK. TomTom are not alone in this - you should see the complaints about the Garmin units...
Navman come out slightly better as they provided a connector for an external aerial connection from day one. _________________ Please don't be offended if I do not reply to a PM - please ask questions via the forums.
Joined: 11/07/2002 14:36:40 Posts: 23848 Location: Hampshire, UK
Posted: Sat Aug 04, 2007 10:47 am Post subject:
Indeed, this is exactly the case although having tested RDS TMC in France recently it wasn't much better.
I think I've given TomTom enough opportunity to provide a statement on this issue so I'll tell you what I know.
As a result of the reception issues which appear worse in the UK than elsewhere TomTom have chosen to cease the supply of RDS TMC receivers for new systems. This can clearly be seen by the lack of a 520T or 720T model here and the dropping of the RDS antenna as an extra cost accessory option. They will revisit this service if and when transmission issues are resolved by the carriers.
Where does this leave current owners? It's my understanding that given the issues here, TomTom are planning to refund all those UK customers who have purchased a TMC antenna. No alternative RDS TMC antenna will be offered.
I'm told that the delay in making this public is due to the work necessary to put in place a refund program to handle the claims. I've given them sufficient opportunity to make a statement and they have failed to do so to date. Regardless of the complexities of any refund program this should not have prevented them from making a public statement that refunding customers was the chosen plan, the release of the 720 has only served to highlight the issue and this whole debacle would have been much better managed had they stated their position earlier.
I do not have any further information on when the refund program will be officially announced but I would suggest that constant calls to support are not going to make this happen sooner. _________________ Darren Griffin
Joined: Dec 06, 2003 Posts: 335 Location: North Surrey (TW17) UK
Posted: Sat Aug 04, 2007 12:38 pm Post subject:
Thanks for that at last, personally I'm dissapointed TT haven'y made an effort to produce a better performing unit. It's also a shame they've discontinued SDK support since I'm sure the TMC problem is also software related. Both in the UK and N France I've seen my modified unit search past the nearest correct frequency without stopping, yet spend ages trying to lock onto an incorrect one. Surely it's not impossible to tell the program that since we're at x, you should lock onto y, if you don't succeed, try again'
Also, if TT wasn't such an arrogant company, it would be nice if they could unofficially leak through a trusted third party suficient technical dtails so that those who wish to modify their units at their own risk could optimise an external connection. Since the launch of TT3 they have done quite well from ideas and developments originating with users or third party developers. _________________ Go740L App 9.510 Europe 985.8155
RDS_TMC mount
Home 2.8.3.2499 Win10 Home
Joined: Jan 14, 2005 Posts: 19638 Location: Blackpool , Lancs
Posted: Sat Aug 04, 2007 2:35 pm Post subject:
I think the problem is more down to poor RF design and the actual hardware employed rather than the software.
I fully understand what you mean as the device scans the entire FM Frequency band, consider the following though if you were to limit the frequency band:
Current UK 99,9 to 101,9
Potential UK 96,4 to 107,7
(With additional stations owned by GMG that iTIS might start using)
France 87,7 to 107,3
As you can see limiting the frequency to just 99,9 to 101,9 might be fine for now, but what about tomorrow, next week, month or year as the iTIS network is expanded?
As for the unit to work in France it needs to scan the full FM band (there are loads of other channels in-between these end stop frequencies).
If you force the device to tune to a transmitter frequency based on location this will also experience problems - transmitter outage, atmospherics etc will all make this very difficult to work reliably. The best bet it to load up the Transmitter POI file and manually tune the device to the frequency indicated.
I detailed how to do this last Dec, its a shame the device cannot do this but the brain is certainly better for working a solution out as you need to factor distance and RF power levels, all of the required information is in the POI file see Here
As for modifying the RDS-TMC for external feeding, again there is plenty of information on this topic within the forum - I would trust some of the people on this forum in terms of their RF capabilities far more than any "unofficial leak" - you can only improve something to a certain amount if the original design were flawed though.
The biggest problem IMHO is their reluctance to add an external aerial connection point, I am sick of asking. It is one thing adding an aerial to a cicuit board, but the electronics should be correctly designed so as to make optimum use of the additional RF power collected by a decent aerial.
I am currently trying something a Garmin user has found to work which involves a rather large ferrite - initial testing looks favourable but I only started messing with it yesterday, when I know more I will post up the results and some pictures assuming it improves reception - Mike
Joined: Nov 04, 2003 Posts: 2225 Location: Bedfordshire, UK
Posted: Sat Aug 04, 2007 2:45 pm Post subject:
Darren wrote:
Indeed, this is exactly the case although having tested RDS TMC in France recently it wasn't much better.
I've not yet used a portable TMC unit in France, but my experience of my car manufacturer SatNav unit with TMC was that TMC was a little sporadic, especially away from the larger cities, but still much better than the UK. Ironically, that car is french, so one would expect it to work best on home soil.
Quote:
TomTom have chosen to cease the supply of RDS TMC receivers for new systems.
An unfortunate, but understandable position. I suspect with their Vodafone traffic tie up in the UK, plus their direct iTIS feed that they may now decide to concentrate on GPRS traffic, although they may have to reduce the costs to compete with Navman / Garmin who have a subscription-less TMC offering. If they do this, especially with their Voda plans, we may well see them perform a comeback and end up at the top of the tree again. _________________ Please don't be offended if I do not reply to a PM - please ask questions via the forums.
Joined: 11/07/2002 14:36:40 Posts: 23848 Location: Hampshire, UK
Posted: Sat Aug 04, 2007 3:05 pm Post subject:
swing wrote:
An unfortunate, but understandable position. I suspect with their Vodafone traffic tie up in the UK, plus their direct iTIS feed that they may now decide to concentrate on GPRS traffic, although they may have to reduce the costs to compete with Navman / Garmin who have a subscription-less TMC offering.
Just to be clear, this is a UK only move, they have no plans to cease support or use of RDS TMC anywhere else. If and or when the reception issues improve they will re-introduce the product. _________________ Darren Griffin
Joined: Dec 06, 2003 Posts: 335 Location: North Surrey (TW17) UK
Posted: Sat Aug 04, 2007 3:20 pm Post subject:
mikealder wrote:
I think the problem is more down to poor RF design and the actual hardware employed rather than the software.
You're much more knowledgeable at this than me, but to the layman, I'd be amazed if it was beyond the scope of a company which can program a 910 to do what it does, to have an updateable db of transmitters, which could be searched on a combination of location & power, with a fall back if no response. I use your excellent POI list, but it's not the easiest or safest thing to try and call up the list when going down a motorway. Again, I've seen a post regarding a possible reception improvement using ferrites, and this reinforces my point in the previous post that I'm certain that if TT were even remotely interested in their customers, they could find a way of leaking some worthwile details regarding possible reception improvemnts.
The truth of the matter IMHO is that they're not remotely interested. They have a dominate market position, and a financial interest in there customers using their alternative traffic 'soloutions'.
I was always most impressed with the AVIS campaign 'we try harder' when they were No2 to Hertz some years ago. I'm not going to cut of my nose to spite my face, but my feelings for TomTom are the same as for Microsoft (although TT in there arrogance will proably take that as a compliment), and the day a true rival product appears iI'll be first in the queue. _________________ Go740L App 9.510 Europe 985.8155
RDS_TMC mount
Home 2.8.3.2499 Win10 Home
Joined: Mar 18, 2004 Posts: 753 Location: Biggleswade, BEDS
Posted: Sun Aug 05, 2007 4:20 pm Post subject:
Darren, thanks for the update, this now means that we have a difficult decision to make,
1. Do we keep the TMC in the hope that the signals will improve.
2. Return the TMC and get a refund.
Sounds simple, but if we return the TMC and the signals do improve then there's no way of purchasing a replacement receiver. I'm not sure what I'll do, I purchased my TMC from PCWorld when they were £30, and TomTom have now given me a 1 year subscription to traffic FOC. I can use dialup in the UK, and try the TMC in Europe it may work. So all in all it hasn't cost me any more and I now have a TMC that may work abroad?
Joined: 11/07/2002 14:36:40 Posts: 23848 Location: Hampshire, UK
Posted: Sun Aug 05, 2007 4:45 pm Post subject:
SpeedCam wrote:
Darren, thanks for the update, this now means that we have a difficult decision to make,
1. Do we keep the TMC in the hope that the signals will improve.
2. Return the TMC and get a refund.
Sounds simple, but if we return the TMC and the signals do improve then there's no way of purchasing a replacement receiver. I'm not sure what I'll do, I purchased my TMC from PCWorld when they were £30, and TomTom have now given me a 1 year subscription to traffic FOC. I can use dialup in the UK, and try the TMC in Europe it may work. So all in all it hasn't cost me any more and I now have a TMC that may work abroad?
Given your situation I'd be tempted to retain the receiver, the years sub to TRAFFIC is compensation given you got the receiver at a discount anyway. _________________ Darren Griffin
Joined: Nov 24, 2006 Posts: 77 Location: Worcester, UK
Posted: Mon Aug 06, 2007 1:39 pm Post subject:
A week ago a I reverted to snailmail and wrote a stroppy letter to the Chief Honcho in Amsterdam. On Saturday, my letter appeared in my questions history on the Tom Tom web site, scanned complete with the enclosures. I was surprised to say the least - but at least I knew it had arrived. My surprise at that was nothing compared to my surprise this morning when I received a telephone call out of the blue from a named person in Amsterdam - very apologetic for the fact they had not responded to my emails. He admitted they had a big problem with the RDS-TMC receiver in the UK but assured me that a replacement WOULD be forthcoming but that he could not be sure when. He rather thought around September but emphasised there was no guarantee of this.
He then offered me a choice of compensation (1) Sub to TT Traffic and speed cameras; or (2) up-to-date maps of Western Europe. I settled on the maps since I have cameras (of course!!) from PGPSW and didn't want to be lumbered with GPRS download charges for Traffic.
He then told me that a new TMC-RDC would arive, eventually, in the post. He seemed confident that the new unit would really do the job. He even gave me his name and invited me to call him personally if nothing seemed to be happening!!
I obvioulsy have no way of knowing if and when a new, fully functioning RDS-TMC receiver will actually be received (especially given the information recently posted above) - but here's hoping!
In reply to some of the comments on page 10 about tuning - I have a Navman T1 and its so much better. I'm lucky in that I get Classic at my home, and when I plug in the Navman I get TMC reports floading onto the screen literally within a couple of seconds. The big difference is that the Navman lets me store a default frequency to try first and of course this is set to Classic 100.6MHz.
The reception on the motorway is just as sketchy as with my Tomtom but the important thing is that I got the traffic info when I really needed it - before the journey started and not 5 or 10mins in. Seems like such a simple software fix.
Joined: Mar 18, 2004 Posts: 753 Location: Biggleswade, BEDS
Posted: Mon Aug 06, 2007 9:09 pm Post subject:
All very interesting, lets hope we are nicely surprised, one thought I've had relates to the data provider. Just maybe TomTom are in talks with TrafficMaster and future products may use this data feed, I'm not sure if TrafficMaster signals are stronger than ITiS
Been on Hols for 2 weeks - got a telephone call from a named individual from TomTom Customer Support whilst on holiday, and came back to this reply from them:
Dear Mr ,
I would like to offer you an upgrade to the latest maps available (v6.75). Please can you provide me with your product code and a copy of your receipt in order that I can process this upgrade. You can scan, or take a digital photo of your receipt, and attach it to a reply to this incident from "My Questions History" when logged into your TomTom account.
I apologize that you have not yet received your replacement TMC receiver; they have recently come into stock, and will be shipped within the next few days. A 1 year Traffic subscription has been added to your account as compensation for the inconvenience you have experienced regarding this.
Should you wish me to contact you via phone to discuss your complaint letter further, please advise me of a convenient time to call you.
I look forward to assisting you further.
With Best Regards
So, does this mean they have a solution for the UK or not?
Joined: Nov 04, 2003 Posts: 2225 Location: Bedfordshire, UK
Posted: Tue Aug 07, 2007 6:59 am Post subject:
SpeedCam wrote:
one thought I've had relates to the data provider. Just maybe TomTom are in talks with TrafficMaster and future products may use this data feed, I'm not sure if TrafficMaster signals are stronger than ITiS
Firstly, no, the signals are about the same strength - all radio signal strengths are limited in the UK. However, I wouldn't pin any hopes on getting TM on your TomTom - you normally only get TM RDS-TMC on Navteq maps, so TomTom / TeleAtlas would have to link TM to their maps first before their data feed could be used. _________________ Please don't be offended if I do not reply to a PM - please ask questions via the forums.
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