"Advanced Extremely High Frequency#AEHF-6 (USA-298)" . . . . "AEHF 3" . "Advanced Extremely High Frequency program" . "Advanced Extremely High Frequency" . "AEHF 1" . "Advanced Extremely High Frequency system" . "AEHF-4" . . "AEHF-3" . "AEHF-5" . . . . "AEHF-6" . "AEHF 4" . . . "AEHF 5" . "(AEHF-6)" . "Advanced Extremely High Frequency (AEHF)" . "Advanced Extremely High Frequency" . . "Advanced Extremely High Frequency (AEHF-6)" . . . . . . "AEHF" . . "AEHF 6" . . "AEHF-1" . "AEHF 2" . "AEHF-2" .