[Laser] How ??

[Pe1nms]

for serverl months I'm planning to make a audio/computer network between 3
locations

All the locations are free visable from my location.

The distanses are not furter dan 200 meters.

My questions:

Do you use analogue techniques, or digital.
Wat is easyer to use (esspecialy for comuter signals) IR Leds or Laser.
(I will need 6 transmitters / Receivers)

how big is the bandwith (for computer and audio signal at the same time)

thanks in advance

73'rs

PE1NMS