Also called PTT. The term given to the act by the controller of pressing a button that activates the control radio frequency for the purpose of making a transmission. In the VV Simulator, the PTT button is the keyboard CTRL key. This key must be held down whilst making transmissions.
A procedural SID is a departure procedure that terminates in when the outbound route is intersected. That is, the pilot flies the entire procedure without intervention from air traffic control. Commonly, a minimum navigational capability (INS/IRS, GPS or VOR) is required. These requirements will be stipulated on the SID plate.