Jamming code

Jaming codes are a counter measure to Asgard transporters made by the Wraith. Developed quickly after the arrival of the Daedalus in the Pegasus galaxy, the jaming codes prevent a transporter lock, which effectively neutralizes the transporters as a weapons delivery system into hive ships. Even with the advent of the Wraith civil war, the codes are still used unchanged. During their brief alliance with the Atlantis expedition, the hive of Michael Kenmore sent their jamming codes to the Tau'ri, but they proved ineffective against when the hive ship broke the alliance.