Curious to find out if you used multiple GPS modules (lets say 5x 1hz units) do the GPS modules (INTERNALLY) update at the same time, randomly or can it be set?
Being able to set when it updates would be preferable (ie: you could set each to sync 1/5 phase from each other).
Really bad idea. The GPS units will all have their own solution to the current position. So you will be jittering back and forth at 5Hz. Even if the antennas are adjacent, they will get different data.