TE Connectivity’s Hirschmann Mobility CR 8521 RD S CELLULAR (2G/3G) / AM/FM (LW/MW/SW/Bandll) Antenna is a screw mount, road vehicle roof antenna. The antenna has an amplifier and duplexer integrated into the base and features a detachable anti-noise rod. TE Connectivity / Hirschmann Mobility CR 8521 RD S CELLULAR (2G/3G) / AM/FM (LW/MW/SW/Bandll) Antenna has a FME male connector and RG 174 cable type.