You would be able to purchase tomtom GPS antennas at radio shack, best buy, target and other electronic stores. You may also be able to find a tomtom GPS antenna at www.amazon.com/tomtom
I would say yes that you probably do need a TomTom receiver with every TomTom GPS, however to be sure i would maybe go to the TomTom's website and see what it says.
If you are planning a family vacation and need a GPS to guide you on your way, then I would suggest the brand TOMTOM since it provides cheap and effective GPS systems.
The best place to find cheap GPS devices is on eBay. You can also check out Tigerdirect, which often has great weekly sales on GPS devices. Overtock.com will occasionally have good deals on TomToms as well.
I looked into this and found the cheapest Tomtoms can be found at Walmart. If you do anything on ebay, or want to give it a try, I would look there too. You may just find a better deal there.
The Tomtom company is a Dutch-based manufacturer. Their Tomtom GPS antenna's are not made in America. You can find more information on this company, their products and where they are produced on the link provided. http://en.wikipedia.org/wiki/TomTom
to find the answer to your question: How are TomTom Rider GPS systems different from regular GPS systems? please see the following website to learn more: www.tomtom.com/
"Now that the gps systems have been around for a few years, you can find a number of them for less than one hundred dollars. Some of these brands are TomTom, Arkon, and Igo."
tomtom is the best GPS brand. tomtom is pretty dam strong and is stronger than most other GPS's out there
A TomTom GPS has features similar to every other GPS on the market. It has the main directions function, but one can also search to find interesting places, restaurants or gas stations as well.
A Tomtom antenna is an external unit to be used with Tomtom GPS navigational units to give a wider range for your GPS needs.
You can put the tomtom car mount anywhere there is physical space. However, the ideal location would find the sweet spot of stability of the GPS device and visibility of the GPS's screen. The center of your dashboard is one such space.