You need to repair the new radar towers. There are three, one by the lake, one near dishes G and H (I think) and one north of the hole/work trailers almost close to dish R. They can be given fuses to protect them but once they go down you have to play a game of clicking the lights to make them all turn green before you can restart the equipment and get your coordinates working again.
They are a bit too high maintenance currently. I think fuses really need the price lowered, it's too many systems to maintain with too high a cost barrier to protect them. Either they need to be given some "plot armor" for the first week or two so they're not am extra burden on top of everything else players are trying to keep going or they need their protections made more accessible.
That or let us sell broken fuses for more to offset the cost, they only sell for 1 point and have no value as crafting scrap as far as I know.