The new R&S®ADD557SR direction finding and monitoring antenna system covers the frequency range from 20 MHz to 6 GHz/8.5 GHz (direction finding/monitoring) for both vertical and horizontal polarization in fixed, mobile and transportable applications.

The R&S®ADD557SR direction finding and monitoring antenna system covers the frequency range from 20 MHz to 6 GHz (direction finding) and 20 MHz to 8.5 GHz (monitoring) with both vertical and horizontal polarization for fixed, mobile and transportable applications. The system contains an omnidirectional monitoring antenna output for both polarizations (switchable).

R&S®ADD557SR测向和监测天线系统的频率范围介于20 MHz至6 GHz（测向）和20 MHz至8.5 GHz（监测），并支持垂直和水平极化，适用于固定、移动和可搬移式应用。系统还集成有全向监测天线并支持两种极化方式（可切换）。

R&S®DDF550 快速宽带测向机具有出色的实时带宽和测向扫描速度，以及一流的测向精度、灵敏度和抗扰性。

R&S®DDF5GTS 高速扫描测向机具有出色的实时带宽和测向扫描速度，以及一流的测向精度、灵敏度和抗反射性能。