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G2A04
Which mode is most commonly used for voice communications on the 17- and 12-meter bands?
Pick an answer to check it.
Answer: A. Upper sideband
17 meters (18 MHz) and 12 meters (24 MHz) are above 10 MHz, so voice uses upper sideband. 60 meters is the only band below 10 MHz that also uses USB.
Tip: 17m and 12m: above 10 MHz, so USB.