The ALFA ASP-NF-NF is a spring-style antenna adapter with N-female connectors at both ends. The connecting thread of the adapter is specially made longer so that it can be passed through the mount.

The antenna spring is designed for use on RVs/ trucks/ cars/ marines. The antenna adapter is extremely durable and reduces the vibrations, resistance and shocks that are inevitably encountered when driving, thus protecting the antenna from mechanical damage.