What is the fine-grained topic of the following text: In Addition to our FC29F-FC26F-8 1.85mm Adapters Field Components stocks additional high frequency precision grade adapters, RF connectors and test grade RF Cable jumpers for wireless telecommunications applications, including WiFi, PCS, radio, computer networks, test instruments, Distribution Antenna Systems (DAS) and antenna devices. Only return the topic.
High Frequency Precision Adapters and RF Components for Wireless Telecommunications Applications