I have to solder an active gps antenna on a pcb. But I don’t know how to choose components.
In my case antenna will be used outdoor on a pet collar.
First of all there are a lot of different ceramic antennas, what are they differences? Mainly they have various sizes but other parameters are the same. I’ve read on one forum that smaller ones are much worse.
And amplifiers, I want to use some cheap circuit like here - https://www.arrow.com/en/categories/amplifiers/gps/gps-amplifiers
But most of them have very poor datasheets. How to choose such ones? Could They be connected to passive ceramic antenna directly? Are other components needed ? Like filters or so?
What would be main differences between such antenna and for e.g. topgnss active one?