Frequency Range: 500 MHz – 9GHz (18 GHz)

The Model 3181 is a broadband 500 MHz – 9GHz (18 GHz) omnidirectional antenna with a radiation pattern that conforms to the CISPR-16 specifications. The Model 3181’s frequency range covers most wireless bands world-wide, it can also be used for surveying or spectrum monitoring when used with a portable spectrum analyser.

The Model 3181 as designed to have the lowest possible VSWR across its range of operation. The antenna exhibits better than 2:1 VSWR for most of its range, and never exceeds 4:1 above 1 GHz.

The radiation pattern of the Model 3181 is omnidirectional in the H-plane. This means the antenna can receive signals from every direction around its axis.

The Model 3181 can be used for EM Field surveying and spectrum monitoring. Its low weight design allows for use as a surveying tool, when connected to a portable spectrum analyser. Optional weatherproofing is available for long term monitoring outdoors.