Following are the best practices for connecting antenna cables to the Cradlepoint ports:
Ensure cable ends are connected to the correct ports.
LTE and GPS ports use SMA connectors and Wi-Fi ports use RP-SMA. Check cable ends to ensure they are the appropriate connection type for the port to which you are attaching them.
GPS/GNSS connectors can be either active or passive. An active antenna requires an active port with suitable ratings to work. A passive antenna may be used on a passive port and can often be used on an active port, if the antenna is not a DC short-circuit type (for example, Loop and PIFA antennas are typically DC short circuit).
Do not over-torque the SMA connector on the modem. Finger-tight is sufficient (maximum torque is 4 in-lbs/ .45 Nm).
Plan cable runs to minimize signal loss. Use the fewest number of coax cable fittings to avoid unnecessary signal loss.
Coax cable has signal loss, especially for higher frequencies. For cable runs 4.6 m (15 ft) or longer, use low loss LMR400. They generally connect using a larger, N-type connector, which requires a convertor to connect to the smaller SMA connectors on Cradlepoint endpoints.
Use cable clamps or other cable-holding mechanisms to secure low-loss cables against a wall or pole.
Use at least two clamps on the cable near the Cradlepoint endpoint. This construction helps reduce stress on the cable/modem connection and increases product reliability.
Use lightning protection.