Hello,
I would like to ask you, is it possible to increase the range in the Airbox LTE MW40V router? The router I can see that it has a socket, but nowhere I can find information whether it is an antenna socket or not. I mean exactly this place:

In general, I have about 3 km in a straight line to the mast. The router is right next to the window from which I can see without any obstacles. There are no trees, no chimneys, nothing. Phones that are not next to the window have LTE full coverage. The router has a max of 1 bar and this is a miracle as it is because it usually receives LTE but the range is 0 bars. It often jumps to 3G. Before I buy a new router, I thought that maybe an antenna could be connected to this socket. It just so happens that I am playing with Arduino a bit and I have a few such entenki exactly with this input, but I don't know if this socket is for this purpose.
I would like to ask you, is it possible to increase the range in the Airbox LTE MW40V router? The router I can see that it has a socket, but nowhere I can find information whether it is an antenna socket or not. I mean exactly this place:

In general, I have about 3 km in a straight line to the mast. The router is right next to the window from which I can see without any obstacles. There are no trees, no chimneys, nothing. Phones that are not next to the window have LTE full coverage. The router has a max of 1 bar and this is a miracle as it is because it usually receives LTE but the range is 0 bars. It often jumps to 3G. Before I buy a new router, I thought that maybe an antenna could be connected to this socket. It just so happens that I am playing with Arduino a bit and I have a few such entenki exactly with this input, but I don't know if this socket is for this purpose.