The Model 3115 Double-Ridged Guide Horn Antenna has been an industry standard for many years with its excellent gain and VSWR characteristics. It is small and portable with a width of 24.4 cm (9.6 in) and calibrated from 750 MHz to 18 GHz.

The 3115 is ideal for automated testing and has the widest usable frequency range of any other antenna in its class, with no performance degradation.