 Vertical bandwidth: 4kHz Horizontal duration: 10 seconds Center frequency = 1800 Hz ACF: PreAmble/PostAmble: 60, Body: 20 Interleaving: 0.6 or 4.8 sec |
 Vertical bandwidth: 4kHz Horizontal duration: 40 seconds MIL-STD-188-110A serial tone and closing link with MIL-STD-188-141A ALE |
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