Rohde & Schwarz provides lightweight, rugged handheld tools to help network operators with the installation, maintenance, and troubleshooting of antenna and transmitter systems. Their portfolio includes the R&S ZVH cable and antenna analyzer for measurements on antenna systems from 100 kHz to 3.6/8 GHz, the R&S FSH spectrum analyzer for tasks related to transmitter stations from 9 kHz to 3.6/8 GHz, and the R&S PR100 portable receiver for detecting and locating interference from 9 kHz to 7.5 GHz.