The Cel-Fi Trucker Antenna (A21-V31-100) is a high-performance wideband antenna option for over-the-road (OTR) users. It is designed to be used as an outside (donor) antenna on trucks, semis, RVs, and any other large vehicles.

It is a 50 ohm impedance antenna with up to 4 dBi of gain. It comes with 4 meters of cable attached. It has SMA-Male connectors.

The trucker antenna has a heavy-duty spring base and includes a mirror-mount for easy installation.