G1000® - Garmin Garmin AT, Inc., 2345 Turner Road SE, Salem, OR 97302, U.S.A. ... However, the pilot must recognize that providing monitoring and/or self-test capability for ... pressing the COM2 Key, or COM1 can be added by pressing the COM1 Key. 4 ... The ETA is calculated by adding to the current time the ETEs of the current leg up to.