The STLP 9129 from Schwarzbeck Mess – Elektronik is a Stacked Log-Periodic Antenna that operates from 70 MHz to 10 GHz. This linearly polarized antenna has a directional radiation pattern and provides an isotropic far-field gain of 8.6 dBi. It is equipped with fast links for the rear radiating elements that allow quick disassembly of the antenna within less than a minute into five handling-friendly parts. The rear radiating elements can be omitted if there is no need to cover the frequency range from 70 MHz to 180 MHz. This 50-ohm antenna has a VSWR of less than 2.3:1 and ripples of ±2.3 dB. It is available in a housing that measures 1.69 x 1.64 x 2.02 m with N-type or 7/16 connector options and weighs 10.2 kg.

The STLP 9129 antenna's main structure comes with support rods on rubber feet for safe placement on the ground when not in use. It is ideal for generating defined field strength levels for radiated immunity testing.