According to Wikipedia, the Semi-Automatic Ground Environment system could automatically update the autopilot of the F-106 and the guidance system of the CIM-10 Bomarc. Presumably this would send either a destination or a vector to the asset in flight, allowing it to intercept a target that had changed course after the asset had taken off.
How was this upload of data to the in flight asset performed? Were there any provisions to prevent a malicious enemy from sending messages that steered the asset off course?
It was most likely a radio frequency system, so I am specifically asking for details of the radio unit and the nature of the communications. For example, the designation of the ground based transmitter and the airborne receiver.
Wikipedia link: https://en.wikipedia.org/wiki/Semi-Automatic_Ground_Environment