Air-ground-air involving a Mcdonnell Douglas Corp. F/A-18A, PIRATE and Mcdonnell Douglas Corp. F/A-18A, SHOGUN, Enroute Mudgee - Cowra, NSW on 28 July 1992

Shogun and Pirate sections [2 X FA 18] were operating at Flight Level 310 in the Mudgee/Cowra area when VHF communications became poor and, at times, impossible. As a result Sydney air traffic control were unable to pass traffic alerting information for the descent phase of the operation. Subsequent communications were established during the descent and there was no breakdown in separation.