GPS+GNSS signal option


this a general question about signal procesing.
I´m using L86 module.
my application makes simple calculations in 2D. I always been use just GPS signal from L80 module.
Now I have GPS AND GNSS.
So, what’s the best practice?
1- a mean from GPS and GNSS location?
2- to look at HDOP from both signals and use the best one?
3- any other approach?


L86 is a GNSS module. In addition to GPS, it also contains other types of satellites, such as Galileo and Glonass. More satellites are used for positioning, and the positioning effect is better. L86 is recommended.