If it doesn't lock on straight away, it also asks you if the clock is set correctly.
I think those older GPS chips might only use the US-operated GPS system while modern ones can consider other positioning satellites as well. And they also can't download AGPS data of satellite drift from the internet, so they need to get it from the satellites themselves.
I think those older GPS chips might only use the US-operated GPS system while modern ones can consider other positioning satellites as well. And they also can't download AGPS data of satellite drift from the internet, so they need to get it from the satellites themselves.