Thread: Using TMC in Garmin nuvi for free

Friends , makes sense the TA-20 cable also serve as antenna, but would make more sense if there was at least a small antenna embedded in the body of the gps, as exists in much smaller devices like mobile phones ( that have GPS antennas and others.. ), that is, would have felt the traffic work without the cable connected, even if partially. The fact is that the traffic receiver built-in GPS does not work without the cable, then it's likely that it also have some power line specifies in the cable to the receiver traffic. It is also worth remembering that, as already mentioned, a user received of garmin a report that another cable with a different part number manufactured for years (I think ), would also serve as a substitute for the TA- 20 [Only registered and activated users can see links. ] post # 13. It seems so strange that a power cable produced at long ago has embedded antenna and serve to activate the GPS receiver traffic of recent gps, ie, I suspect about the veracity that the function of the cable is only to serve as an antenna .
A likely need of extra power supply to the receiver could be the major energy consumption that would degrade the battery, or Garmin's strategy to force the use of its accessories (cables). To solve the question only opening the other mentioned cable (and a TA- 20) and to see if in fact they have built-in antenna. By the way, the GTMxx cables are divided into two parallel parts visible externally, where a corresponds to power transmission and other for antenna (I've opened some to check out as well). As the receiver is in the cable has felt the main antenna, and connector for an auxiliary, stand in the cable also.