Which communication method uses a 10-foot bamboo antenna?

The PRC 150 is known for its capability to operate using various antennas, including a 10-foot bamboo antenna. This type of antenna is used primarily to enhance the radio's range and transmission effectiveness in difficult terrain or remote areas where traditional antenna setups may not be feasible. The PRC 150, designed for secure voice and data communications, often relies on such flexible and lightweight antenna solutions for effective long-range operation.

In contrast, the other selected options, such as the PRC 152, XTS 5000, and IRIDIUM, utilize different types of communication technologies and antennas better suited to their specifications. The PRC 152 is a newer, more sophisticated radio that incorporates advanced features like wideband and narrowband capabilities, while the XTS 5000 is primarily designed for law enforcement and emergency services with a robust communication network. The IRIDIUM system leverages satellite technology for global communication but does not typically utilize a bamboo antenna for its operations.

Thus, the specificity of the PRC 150's operational capability with a 10-foot bamboo antenna makes it the correct answer to the question regarding communication methods.