Thread: Using TMC in Garmin nuvi for free

Originally Posted by fundragon

I doing GTM35. Applied NUvi 3750 in Thailand... i need Step by step for use

Yes, it's work. GTM35 is work not fix to the model (if the unit support TMC).

Dears,

I've been using my nuvi 3750 with GMT 25 cable, with Jetmouse subscriptions once a week when I go to São Paulo.
In my short experience i Notice that there only a few streets monitored by Navteq and every time nuvi sends me to a not monitored street it "thinks" is free but actually it's crowded. Below is a picture of my screen showing the trafic map:

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If I look to Google maps with traffic info provided by maplink , seems to have more info available, see below a picture at same day and time:

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Here are also the screens from my device. I don't know if this behavior is correct or there is some problem with my device get less info than the available.

[Only registered and activated users can see links. ][Only registered and activated users can see links. ]

Maybe the experts here can give me some advice to improve it ?

Thanks

Thanks Angelozip,

Do you know if this weakness of Navteq data is only here in Brazil or is it global?

Funny is that I've been to Navteq presentation of the TMC system here in Brazil like 2 years ago and they announced 4 sources to provide traffic data:

- Radio Sul America Transito: local (Sao Paulo area) radio which count on listeners traffic info and with Maplink as well);
- G.E.T.: official traffic management company (pretty shitty info, barely of the main roads);
- Tracking system: most of private insurance companies install tracking system in vehicles, that info is gathered by Navteq. They mentioned also a 'double check' in order to avoid not to think that a parked car is stucked in a traffic jam;
- Human: Navteq agents in the main roads monitoring traffic with their own eyes :D

Seems that is not working the way they promised... what a pity.

Originally Posted by rtsouza

Thanks Angelozip,

Do you know if this weakness of Navteq data is only here in Brazil or is it global?

Originally Posted by angelozip

NAVTEQ is a global company specializing in maps and related services, but with strong competitors in specific areas in many countries, such as Traffic, for example, locales where it is far from the best. In various of these regions she sub hires local companies to provide traffic information that go feed their databases.....
...in addition to being paid and also depend of the cellular and broadband internet.

So the conclusion is that TMC is useless !!!!!

Originally Posted by Neil

That's not actually how the HD traffic info is delivered via the GTM60 HD Digital Traffic Receiver. I think that possibly you are confusing the GSM 'Live Traffic' service via the SmartPhoneLink in Apps on your 3597, with the HD Digital traffic via the HD radio (DAB+) receiver in the GTM60 for which there is no charge. The NA GTM60 also has an OEM Navteq FM TMC subscription on board as well. I've also added a TTN FM sub to my NA GTM60 but i haven't been back to the States to test it but i don't think it will as 1 error is now showing. The Suna FM sub added works in AU though as it also does with GTM26/36.

Code:

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That's correct. I was referring to the premium subscription service through SmartPhonelink.

TTN or Clear Channel does not broadcast in HD so even if you can get the TTN to work on the latest Nuvi's I don't think it's worth the hassle....if you have an older device like I do that already has the TTN code. It's also too bad that you STILL can't force your Nuvi to select which traffic provider through the traffic receiver/antenna. Having said that, it's not really a big deal whether or not you have traffic since most radio stations where they transmit the traffic info normally do not broadcast traffic during weekends or after certain hours.