This subject is one of the optional modules. This option is similar to the VHF Operator module but is oriented towards the HF side of radio. An HF aerial has now been erected at the Sqn in the form of an ‘inverted V’ aerial allowing the Cadets to monitor and transmit HF around the world.
Similar to the HF Listener module, the Cadets must also show a working knowledge of HF, aerials, frequency spectrum and propagation. As the HF Operator transmits as well as listens, log keeping is required with a more in-depth knowledge of HF regarding transmitting and electrical interference. Once again, some of the theory aspects overlap into other modules of the Communicator Badge scheme such as the Amateur Radio Foundation Course where the subjects are discussed more in depth.