And 150 metres is a long way to run a satellite IF signal,(the signal that comes down from the LNB to the satellite receiver) you may have signal problems at the far end.
Analog mentioned the use of fibre, there are some fibre optic satellite LNB's and fibre transmitter and receivers out there, this would solve any signal loss problems.
If you go with the fibre option then I would suggest the use of some PVC electrical conduit to protect it, this will also let you run some AC power out to the dish location as the fibre optic LNB and its transmitter needs local power to run.
A bit more expensive then coax but well worth it, the only drawback is that it only runs one LNB, and you can't use a motorized system.(not without tripling your costs)
Here is some info on this option.
Code:
https://www.satellitesuperstore.com/optical_lnb.htm