Codan 8525B Series - Using selective call

Outback HF Radiophone 5-1
5. Using selective call
Selective call allows you to call Radiophones or equivalent
transceivers. This can be best likened to a normal telephone
system where the called station has a unique calling address or
number. However, the operator can also call a group of stations
if desired.
Each Radiophone has its own identification number. The
identification number is a four digit code that is self
programmed into the Radiophone using the control head front
panel buttons.
The selective call feature operates by the transmission and
reception of coded signals. These signals contain the
identification number of the Radiophone or transceiver being
called (the called address) and the number of your Radiophone
making the call (the self-identification).
All displays in this section show examples of channel and
frequency numbers. You must insert your selected channel and
frequency numbers.