Sussex ACO Communications

HF Listener

Training Objective:

The cadet should demonstrate an understanding of the principles and practical aspects of HF Communications to the satisfaction of the Squadron Communications Instructor.

Enabling Objectives:

Either
    A minimum of 6 hours listening to the Air
        Cadet HF Network, supported by a
        listener log
or
    Short Wave Listening experience of HF
        broadcasts over a minimum of 6 hours
        using a domestic/commercial HF receiver
This option may include reception of commercial international broadcasting, amateur radio operators, HF air traffic control, VOLMET transmissions etc, again supported by a listener log.

Whichever option is used, the cadet must show a working knowledge of HF operating, aerials, frequency spectrum and propagation.

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This is an optional module.   When a cadet is also using the HF Operator module as part of the Communicator Badge then hours logged as an HF Operator may not be used for this module nor may hours logged as a listener be used to support an application for the HF Operator module.

Some units don't have access to HF transmitting equipment or  instructors licensed to use it.  This module was introduced to enable cadets in these circumstance to get involved with HF work in spite of this.

The High Frequency (HF) radio system is generally used for long distance communication.  Even on relatively low powers it is possible to speak to other operators over hundreds and thousands of miles.  Because of this, access to the HF bands is very tightly controlled and licensed worldwide by government agencies.  Listening to the HF frequencies, in most circumstances, perfectly legal even without a licence but some communications are protected by law.