User Guide

In most cases, external antennas are not needed with the FX4100. The integrated internal antennas provide an average 4 dBi peak gain across all frequency ranges. If you are getting 4-5 bars signal strength, external antennas will not add to performance. In fact, adding the wrong external antennas (less than 4 dBi, including cable loss) will decrease your router’s performance.

Situations where external antennas are needed are rare, and may include:

• Poor signal quality
• Challenging location (basement, thick building walls, scenarios where there is a strong 5G signal outside, but only 4G inside, etc.)
• The need to boost higher frequency bands

When using external antennas, consider the reliability of the manufacturer, correct connectors, bands/frequencies, and cable loss.

Contact your Account team for more information about external antennas.