GPS channels
GPS channels are the elements that make up a GPS receiver and allow the acquisition of satellites. Be aware, however, that the accuracy and speed of such an action depends mainly on the number of GPS channels of a receiver. The more they are, the faster and more accurate the acquisition.
Nowadays, we can find 15-channel GPS receivers. Even if the performance of a gps receiver type mini camera, depending on the number of channels it contains, the type of receiver can also influence this performance. Indeed, there are 3 types of GPS receivers. The first is the parallel receiver, which, with chips, simultaneously receives each of the satellites. It is the best performance known to date. It uses at least 5 channels to allow 3-dimensional positioning. Then there is the multiplex receiver that dynamically allocates a slice of time to each of the satellites and gives the impression of following them simultaneously. Finally, there is the sequential receiver that takes care of receiving all the information from one satellite after another. Its performance is poor and requires at least 3 channels.
As a general rule, 4 channels are enough to find the position using the 4 best satellites. The advantage of having more channels is that when these satellites are unavailable, the receiver can continue to provide a position. Devices such as spy camera or the USB camera key they use a GPS beacon of 2 to 12 channels.
