[Community] RDS-TMC traffic data

Ryan de Laplante ryan at ryandelaplante.com
Tue Jan 28 00:47:22 CET 2014

I did a preliminary investigation and it it seems that a single company sells 
traffic data to all of the navigation system providers who then resell it as a 
subscription service:


Garmin sells a special receiver called GTM 10 TMC Traffice Receiver (there are 
newer models now). It sits between your car radio and the antenna, and 
attaches to your Garmin device using a mini-USB cable.   It would be 
interesting to try and get this working with Neo900/OsmAnd (along with a paid 



On Mon Jan 27, 2014 6:07:20 PM Ryan de Laplante wrote:
> Does anyone have experience with navigation systems/software that can use
> traffic data received over FM radio?
> https://en.wikipedia.org/wiki/Traffic_message_channel
> It would be interesting to be able to use an offline maps program such as
> OsmAnd on Neo900/ReplicantOS to get a full featured offline navigation
> system including live traffic data from a receive-only antenna.
> I've read that the data can be encrypted and require a subscription with an
> external receiver/decoder in some countries.  I haven't spent any time
> looking into it yet, but I'm wondering if anyone knows of such a device
> that can be attached to Android based devices and be used with Free
> software?
> Ryan
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