It is a transmission line for transmitting the RF signal to the destination.

Especially in a vehicle, it can efficiently transmit various electrical signals (Radio, TDMB, GPS, SDARS, HSDPA etc.) received from an antenna to a receiving end. 

It transmits GPS + Satellite (XM, Sirius) signals for use in domestic AVN systems. In order to minimize loss rate according to frequency, we usually use RG316 series.