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BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL
Summary of Calling Systems
Call Type International OEM
Emergency Call Yes Yes
Beacon Call Yes Yes
Selcall Yes Yes
Telcall Yes Yes
ARINC Call Yes Yes
Page Call (SMS) Yes Yes
GPS Call (Data & Request) Yes Yes
Secure Call Yes No
Status Request Call Yes Yes
Selective Call - Selcall
Selcall is a signalling system based on standard CCIR-493 for use on HF net-
works. Each station in a HF network can be assigned up to 14 Self IDs of which
there can be a mixture of four and six digit IDs. The station can be called using
any of these self IDs.
It functions as a hailing or alert system i.e. a HF transceiver (Station A) can send
a Selcall to another transceiver (Station B). This will alert the operator at Station
B that Station A is contacting them.
Selective Call - Telcall
Telcall uses this Selective Call system to transport a telephone number from a
station on a HF network to a base station equipped with a telephone intercon-
nect unit to initiate phone calls onto the international telephone network.
Note: For Selcall and Telcall functions to operate, the channels being
used must be enabled for Selcall operation.
The three most commonly used calls are Beacon Call, Selcall and Telcall. The
other calls are more advanced and can be found in the Advanced Selcall Func-
tions section of this chapter on page 47.
Selective Call - Beacon Call
Beacon Call allows the Operator to determine the signal quality between their
station and the station they want to call on a particular channel, but without
actually alerting the station they are doing so.
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