Quote:
|
Originally Posted by M3newbie
I suppose the only way to tell if one is better than the other is to plug in each type, and read off the s/n ratio. Is that correct?
|
Correct - the higher the S/N, the stronger the signal.
Make sure you swap antenna leads quickly (within 5min), and always observe the same satellite number (check the PRN).
The GPS satellites are orbiting the earth and their position is always changing as they fly overhead.
So you cannot use one antenna one day, then compare with another antenna another day, because the satellites have changed location, and it is possible that local obstructions (trees, buildings, etc) weaken the signal.