There are many advantages and disadvantages to owning a homemade GPS receiver.
Before you decide whether or not to make use of one of these home grown solutions, you should familiarize yourself with both. First, the advantages to owning one of these systems lies in the fact that you will save money.
The entire system as a whole will be less of an investment, while rendering many of the benefits of the store bought systems.
However, if you want an advanced GPS system, you may not want to make a homemade one for yourself. The primary advantage of a home grown system lies not only in money, but the fact you can customize the system to fit your exact needs.
The disadvantages to a homemade GPS receiver, however, are many. You cannot easily make talking GPS receivers, which is a useful feature to have if you are driving a lot. This disadvantage makes the systems less usable for the average person.
The second disadvantage is in the fact that you will have a very difficult time creating a high accuracy GPS receiver. This is due to the fact that companies that are making the receivers have a lot of other companies and development staff to help make certain the product is as accurate as possible.
Finally, you lose the ability to receive customer service when you build your own system. If your system breaks while you are on the road, you will not be able to receive any assistance from the company that you bought the device from. Before you purchase the parts to make your own device, you should ensure you have considered all of these angles.