Post by KatePost by Andrew RichAnyone heard VDL4 in Australia ?
Freq ?
I have no idea. What is it?
Neither did I... I assume it is this:
"VDL Mode 4 (VDL4) is a digital data link designed to operate in the VHF
frequency band using one or more standard 25 KHz VHF communications
channels. It is capable of providing digital communications and
surveillance services between a combination of mobile stations (aircraft
or ground vehicles), as well as between mobiles and ground stations. It
is characterised by its ability to exchange short repetitive messages
with the exchange managed by a number of protocols."
From:
www.eurocontrol.int/vdl4/public/standard_page/systemdescription.html