u-blox, GPS, models:

AMY-5M	Hardware Manual Hardware Integration Manual
ANTARIS 4	System Integration Manual
LEA-4R	System Integration Manual And Reference Design
LEA-5 Series	Hardware Manual
LEA-6 series	Hardware Integration Manual
LEA-7 Series	Hardware Integration Manual
MAX-7 Series	Hardware Integration Manual
NEO-5 Series	Hardware Integration Manual
UBX-G7020	Hardware Integration Manual