Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?

1. A Upper sideband
2. B Lower sideband
3. C Suppressed sideband
4. D Double sideband

Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?

1. A Upper sideband
2. B Lower sideband
3. C Suppressed sideband
4. D Double sideband

Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?

1. A Upper sideband
2. B Lower sideband
3. C Suppressed sideband
4. D Double sideband

Which mode is most commonly used for voice communications on the 17- and 12-meter bands?

1. A Upper sideband
2. B Lower sideband
3. C Suppressed sideband
4. D Double sideband

Which mode of voice communication is most commonly used on the HF amateur bands?

1. A Frequency modulation
2. B Double sideband
3. C Single sideband
4. D Single phase modulation

Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?

1. A Very high-fidelity voice modulation
2. B Less subject to interference from atmospheric static crashes
3. C Ease of tuning on receive and immunity to impulse noise
4. D Less bandwidth used and greater power efficiency

Which of the following statements is true of single sideband (SSB)?

1. A Only one sideband and the carrier are transmitted; the other sideband is suppressed
2. B Only one sideband is transmitted; the other sideband and carrier are suppressed
3. C SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands
4. D SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands

What is the recommended way to break into a phone contact?

1. A Say "QRZ" several times, followed by your call sign
2. B Say your call sign once
3. C Say "Breaker Breaker"
4. D Say "CQ" followed by the call sign of either station

Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?

1. A Lower sideband is more efficient than upper sideband at these frequencies
2. B Lower sideband is the only sideband legal on these frequency bands
3. C Because it is fully compatible with an AM detector
4. D It is commonly accepted amateur practice

Which of the following statements is true of VOX operation versus PTT operation?

1. A The received signal is more natural sounding
2. B It allows "hands free" operation
3. C It occupies less bandwidth
4. D It provides more power output

Generally, who should respond to a station in the contiguous 48 states calling "CQ DX"?

1. A Any caller is welcome to respond
2. B Only stations in Germany
3. C Any stations outside the lower 48 states
4. D Only contest stations

What control is typically adjusted for proper ALC setting on a single sideband transceiver?

1. A RF clipping level
2. B Transmit audio or microphone gain
3. C Antenna inductance or capacitance
4. D Attenuator level