How can i power my Here+ RTK Base with a batery

i will train my rtk and the computer will stay inside and rtk will stay outside
i couldn’t afford a cable that long so i will connect them with a remote communication module

i have connected cables to RX,TX and GND pins


There is no vin cables and the only ports i have are

these upper one is for connecting the antenna to RTK module so i have to use the bottom one
but i didn’t wanted to connect a arduino nano and RTK Base to my computer while i am connecting them between already

my electrical knowledge is very low
please help me out!

(also if i have to connect them with usb how will i be able to connect them to a 12V battery with an usb cable)

Thank you!