Editing Traffic message channel (section)

==Devices and navigation programs==
An RDS-TMC receiver is a special FM radio tuner that can decode TMC data. Satellite TMC receivers use a dedicated data channel that is broadcast as part of much larger broadcast digital audio channels. TMC data is decoded by matching event and location codes against look-up tables of phrases and locations. The results can be translated into audio or visually displayed on a [[Sat nav]] device. The look-up tables must be implemented in a service-specific database mapped to geographic routes and intersections. As with the navigation systems themselves, periodic upgrades are needed as the road system changes. This provides opportunities for vendors to generate revenue.<ref name=dublincity>{{cite web | url = http://www.dublincity.ie/RoadsandTraffic/Traffic/Pages/TMC(TrafficMessageChannel).aspx | title = TMC (Traffic Message Channel) | publisher = Dublin City Council | date = November 2010 | access-date = 19 October 2012 | url-status = dead | archive-url = https://web.archive.org/web/20121121142140/http://www.dublincity.ie/RoadsandTraffic/Traffic/Pages/TMC(TrafficMessageChannel).aspx | archive-date = 21 November 2012}}</ref>

The technical concepts of RDS-TMC originated about 30 years ago, initially by [[Blaupunkt]] and [[Philips]]. With European Commission funding, the [[BBC]], [[Transport Research Laboratory]] and [[Centre commun d'études de télévision et télécommunications|CCETT]] came together in a team led by [[Castle Rock Consultants]] to develop the standard. More recently, [[Personal navigation assistant|personal navigation devices]] (PND) have emerged as an alternative way to deliver traffic information via mobile devices employing GPS.<ref>{{cite web |url=http://www.mobile2day.com/de,de,eur/11333,newsdetail.html |archive-url=https://archive.today/20120904013538/http://www.mobile2day.com/de,de,eur/11333,newsdetail.html |url-status=dead |archive-date=2012-09-04 |title=New TMC receiver from AVANTEQ |publisher=mobile2day |date=2007-03-13 |access-date=2011-09-22 }}</ref><ref>{{cite web |url=http://www.treoprotricks.com/post/Free-RDS-TMC-on-your-mobile-with-GNS-TrafficBoxPlus.aspx |title=Free RDS TMC on your mobile with GNS TrafficBoxPlus &#124; WMProTricks |publisher=TreoProTricks |date=2009-01-12 |access-date=2011-08-06 |url-status=dead |archive-url=https://web.archive.org/web/20110806165633/http://www.treoprotricks.com/post/Free-RDS-TMC-on-your-mobile-with-GNS-TrafficBoxPlus.aspx |archive-date=6 August 2011}}</ref>

Automobile companies continue to roll out RDS-TMC products. One reason is that the use of mobile devices is attracting legislative attention due to concerns about driver distraction. Like [[car audio|car radios]], [[Automotive navigation system|in-vehicle navigation systems]] have not so far generated the same concerns and may continue to outsell handheld solutions.

Higher-end models of personal navigation assistants come with a built-in TMC receiver,<ref>{{cite web |url=http://www.geoconnexion.com/geo_news_article/TMCstack---cost-reduction-for-TMC-receivers/5788 |archive-url=https://web.archive.org/web/20120330213842/http://www.geoconnexion.com/geo_news_article/TMCstack---cost-reduction-for-TMC-receivers/5788 |url-status=dead |archive-date=2012-03-30 |title=TMCstack – cost reduction for TMC receivers |publisher=GeoConnexion |date=2009-05-06 |access-date=2011-09-22 }}</ref> and depending on the country, the service is available in [[Eclipse (Fujitsu)|Eclipse]], [[Garmin]], [[iPhone]] ([[Navigon]]), [[Navman]], [[Navway]], [[Mio Technology|Mio]], [[Pioneer Corporation|Pioneer]], [[TomTom]] and [[Uniden]] navigation systems, as well as in [[Volvo]], [[BMW]] and [[Ford Falcon (Australia)|Ford Falcon]] navigation systems, among many others.

TMC adapters can extend mobile navigation systems with integrated GPS receivers with TMC functionality. They can include a [[bluetooth]] or [[USB]] connection. The adapter passes traffic messages to the navigation software for route calculations. The adapters generally include a connector for FM/TMC, an antenna (2,5mm [[Telephone plug|phone jack]] or [[MCX jack]] 50 Ohm). Compatible navigation programs include [[AvMap]], [[Destinator]] PN, [[Falk Corporation|Falk]] Navigator TMC Edition (special version for MyGuide Navigator 6500XL TMC Bundle), [[GoPal]], [[IGO (software)|iGO]], Mireo, [[Navigon]] MN5, [[Route 66 (software)|Route 66]], and [[Sygic]].<ref>{{cite web|url=http://www.avanteq.de/eng/tmc-solutions-compatible-to-leading-navigation-software.html |title=AVANTEQ TMC solutions compatible to leading navigation software |publisher=AVANTEQ GmbH |access-date=2011-09-22}}</ref><ref>{{cite web|url=http://www.gns-gmbh.com/index.php?id=197&L=1 |title=GNS TrafficBox FM9 RDS TMC Adapter: GNS|publisher=Global Navigation Systems – GNS GmbH |access-date=2011-08-06}}</ref><ref>{{cite web |url=http://linux.downloadatoz.com/simple-rds-tmc-decoder/ |title=Download Simple RDS-TMC Decoder 20070420 for Linux – Simple RDS-TMC Decoder Free Downloads |publisher=DownloadAtoZ Inc. |access-date=2011-08-06 |archive-date=1 July 2010 |archive-url=https://web.archive.org/web/20100701081547/http://linux.downloadatoz.com/simple-rds-tmc-decoder/ |url-status=dead }}</ref>