![Barrett 4090 HF SDR Operating And Installation Manual Download Page 88](http://html.mh-extra.com/html/barrett/4090-hf-sdr/4090-hf-sdr_operating-and-installation-manual_475730088.webp)
76
BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - ADVANCED OPERATION
ARINC Call
An ARINC call functions in much the same way
as a Selcall. It is a hailing or alert system used
exclusively to alert aircraft.
An ARINC ID is a sequence of two sets of 2 let-
ters. Each pair must be entered alphabetically
eg. AB-CD or CD-AB.
The interface does not allow invalid ARINC IDs
to be entered and blanks out invalid characters.