The fancy digital 3d traffic won't be of much use if there isn't enough coverage for the HD radio broadcast signals.
I also live around the Twin Cities area, there is like 17 HD stations, I have been able to get a signal just a few times but most of the time I get no signal. How does the tomtom HD traffic work? I had a tomtom 2535 that had HD Traffic and had no problem getting a traffic signal with it.If you look here http://www.hdradio.com/stations/Minnesota-MN/Minneapolis-St.+Paul-54 it even shows 3 PND HD Radio PND Receivers, the nuvi 3490lmt, GTM 60, and Cydle.
I installed the new software released today, 11/4/11 - Version 3.50 and the traffic still doesn't work properly. You can get it to work properly be clearing the FM Tbl cache following the steps above. This process will take about 4 minutes but then your traffic will work properly. A pain in the butt workaround, but it does work reliably at this point. Keep letting Garmin Techncial Support of the problem - they don't seem to believe this is a widespread problem.
My GPS FM Table most often (after resetting) shows the following FM Traffic providers: 87.5, 94.5, 97.1, 100.3, 101.3, 102.1 and 107.1 Of these, it picks 107.1 as the signal source each time as it is the last on scanned. As you may know if you travel much beyond the metro area, 107.1 has the weakest signal of the bunch which is why I only get 1 or 2 bars at best on the GPS traffic when it is working.Interestingly enough, I headed out of town this weekend and eventually 107.1 was out of range. A rescan selected KS95 (94.5) which resulted in 5 bars of reception and an additional range of about 20 miles.My guess is that your replacement GTM 60 will be 100% fine just like the one it replaced - it's the GPS software that is the problem. You'll have to go into diagnostics and rescan each time the GPS is turned off.The GTM 60 receiver seems to be doing its job - I believe there are problems with the software / firmware. Are there people in other areas having the same problems that we are in the Twin Cities?
Thank you for contacting Garmin International. I will be happy to help you with this.Our Engineering team is aware of the traffic reception issues that are affecting your nuvi 3490LMT, and we are working to develop a solution for this problem. The fix will become available via a future software update. I recommend that you run the WebUpdater program every couple of weeks to see if a software update or additional updates relating to traffic become available. I appreciate your patience.
NAVTEQ Traffic over HD Radio™ is the only 30-second traffic service commercially available for Personal Navigation Devices todayCHICAGO, Dec. 21, 2011 /PRNewswire/ -- NAVTEQ, the leading global provider of maps, traffic and location data enabling navigation, location-based services and mobile advertising around the world announces the delivery of NAVTEQ Traffic™ over HD Radio™ used to power the launch by Garmin International, the global leader in satellite navigation, of Garmin Digital Traffic. NAVTEQ can now deliver Traffic updates approximately every 30 seconds over 270,000 miles of the HD Radio™ broadcasting system across the United States. The ultra-rich transmission is 4 – 10 times faster than other traffic services making this the world's most extensive and fastest traffic service a consumer can find. The enabled technology is given that NAVTEQ Traffic is now transmitted over a wider radio frequency spectrum broadcasted over 3,400 HD Radio towers.Available on Garmin's nuvi 3490LMT, NAVTEQ Traffic over HD Radio™ brings a superior navigation experience to the user interface of Garmin devices. By providing unprecedented live traffic coverage, with more detailed information about traffic incidents and road conditions, it allows consumers to experience the freshest and most up-to-date information around them by reducing latency."Garmin, with NAVTEQ's technology, brings the next generation of navigation to users of the nuvi 3490LMT for the first time in the U.S.," commented Dan Bartel, Garmin's vice president of worldwide sales. "Our new Digital Traffic technology powered by NAVTEQ not only offers the highest quality map experience but can also tell drivers which areas to avoid and how to navigate around any congestion even faster than before.""The decision by Garmin to offer NAVTEQ Traffic data over the new HD Radio technology is a great step forward in meeting consumer demand in the industry today," commented Dave Dale, vice president North America sales, NAVTEQ. "We strive to bring enhanced navigation experiences to as many consumers as possible and with Garmin's capabilities, we are making it a reality."NAVTEQ Traffic over HD Radio™ is included with the Garmin nuvi 3490LMT, and is also compatible with other selected nuvi devices via the Garmin GTM 60 adapter (sold separately).