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Chapter 8
Procedures for Calling and Answering
The procedures outlined below are very important for effective communications on
both VHF and HF networks. It is imperative these basic steps are learnt well.
REMEMBER to always identify yourself with your callsign when using the radio
networks.
There is a slight difference between VHF and HF callsign use. If in doubt use the
complete station callsign.
VHF
VHF is line of sight and usually restricted to short distances of between 3km – 100km
(with repeaters). Therefore a radio room in Baghdad could be, “Bravo Foxtrot Base”
(including the word Base on the end of a VHF base station callsign is accepted
practice). Users of handheld VHF radios should always use full callsign i.e., Bravo
Foxtrot Eight Nine Three (BF893). Always pronounce the numbers in a callsign as
single digits. Do not say “eight hundred and ninety three”.
Example:
Bravo Foxtrot Base this is Bravo Foxtrot Eight Niner Three over
HF
As HF transmissions travel many thousands of miles and cross international borders,
it is important to use the full callsign (country indicator included) so anyone listening
in another region and/or country can identify the caller. Remember cross border
operations can occur and therefore the above should be applied to prevent confusion.
Example:
India Bravo Sierra Base this is India Sierra Mobile Four Nine Zero One over
When using VHF or HF communications it is IMPORTANT to remember that
someone somewhere will ALWAYS be listening to your conversation. Be very
careful what is said at all times
Radio Operators Training Manual
Version 27/11/2007
46