quiktrak announcement, page-44

UNW are an internet service provider. They use 2.4Ghz and 5.7ghz domestic links and rely on telstra fibe optics as a backbone. Yes it is a glorified Bluetooth system and is nothing like QTK's unjammable system.

UNW can be easily jammed by commonly available spectrum jammers. I would never use it as a basis for security.

You cannot jam DSSS that QTK use.