Using this cable is easy. Just connect the Hirose HFL female end to the appropriate port on your Lassen iQ device and the SMA female bulkhead end to the corresponding connector. When using, make sure the connection is secure to avoid signal loss. Also, remember this cable won't work with the UFL connector on the UV40. For maintenance, keep it in a dry and clean place. Avoid bending it too sharply or pulling it forcefully, as this could damage the internal wiring. With proper care, this cable will serve you well for a long time.