New to GPS

[JeffreyG]

I have a question regarding gps units or modules and I was hoping someone here could help me.

How do signals not get crossed if there is multiple gps modules in the same area or is this even possible and when I say multiple I mean if I was to have 200 of the same modules in the same we'll say 5mile area would signals interfere with one another?

I would really appreciate any help thanks

 

[Phantom]

Just like how cell phones do not get crossed. Differences in for lack of a better term "area codes" rout the signal to that gps, all others ignore it more or less.

Same with cell phones.

 

[mbavaro77]

IMHO the association with cellular phones is not really appropriate... try having lots of cell phones in the same area trying to establish a phone call and you'll see what I mean.

A GPS receiver is by definition receiver only.
GPS satellites (the transmitters) broadcast the signal at 20000+ Km from the Earth surface and serve more or less half globe, regardless of how many users there are.

Perhaps a more reasonable comparison is satellite TV?


Ciao,
Mic