1. Geodnet Knowledge Base
  2. GPS/GNSS Tech, Mining Hardware, Installation

Is the receiver/antenna susceptible to interference? (If you install these in exposed places, it is not so easy to get to the device)

Generally, one source of interference documented by GNSS community is with nearby LTE towers.  I have seen a lot of recommendations not to install a GNSS base within 1km of cell tower.  This does not seem to be a hard and fast rule.