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BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL
Overview
This chapter covers all types of Selcall available on the Barrett PRC-4090 trans-
ceiver. All of these options are not available in all countries and may need to be
purchased separately.
Selcall or Selective calling is a type of digital signal for HF networks. It utilises a
type of squelch protocol where the transmission begins with a brief sequence
of audio tones.
There are several different types of Selective Calling Systems available in addi-
tion to simple point-to-point HF communications.
The calling systems available for the transceiver are listed below:
• International (INT) - A four and six digit Selective Call system, fully interop-
erable with the UN format published in September 2004 and fully back-
wards compatible with all previous Barrett four and six digit Selcall pro-
tocols.
• OEM - A four and six digit Selective Call system compatible with other
major HF manufacturers including those using encryption. Includes Selcall,
Telcall, Beacon Call, Emergency call, Pagecall and GPS call.
• CCIR - A four digit Selective Call system as specied by CCIR-493.
• RFDS - Royal Flying Doctor Service (Australia Only)
• ARINC - Aeronautical Radio INC.
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