FCCライセンス General 6月 25 2024 SUBELEMENT G2A SUBELEMENT G2A G2A – Phone operating procedures: USB/LSB conventions, breaking into a contact, transmitter setup for voice operation; answering DX stations 1 / 12 G2A01Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher? A. Upper sideband B. Lower sideband C. Suppressed sideband D. Double sideband 2 / 12 G2A02Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands? A. Upper sideband B. Lower sideband C. Suppressed sideband D. Double sideband 3 / 12 G2A03Which mode is most commonly used for SSB voice communications in the VHF and UHF bands? A. Upper sideband B. Lower sideband C. Suppressed sideband D. Double sideband 4 / 12 G2A04Which mode is most commonly used for voice communications on the 17- and 12-meter bands? A. Upper sideband B. Lower sideband C. Suppressed sideband D. Double sideband 5 / 12 G2A12What control is typically adjusted for proper ALC setting on a single sideband transceiver? A. RF clipping level B. Transmit audio or microphone gain C. Antenna inductance or capacitance D. Attenuator level 6 / 12 G2A05Which mode of voice communication is most commonly used on the HF amateur bands? A. Frequency modulation B. Double sideband C. Single sideband D. Single phase modulation 7 / 12 G2A08What is the recommended way to break into a phone contact? A. Say “QRZ” several times, followed by your call sign B. Say your call sign once C. Say “Breaker Breaker” D. Say “CQ” followed by the call sign of either station 8 / 12 G2A07Which of the following statements is true of single sideband (SSB)? A. Only one sideband and the carrier are transmitted; the other sideband is suppressed B. Only one sideband is transmitted; the other sideband and carrier are suppressed C. SSB is the only voice mode authorized on the 20-, 15-, and 10-meter amateur bands D. SSB is the only voice mode authorized on the 160-, 75-, and 40-meter amateur bands 9 / 12 G2A06Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands? A. Very high-fidelity voice modulation B. Less subject to interference from atmospheric static crashes C. Ease of tuning on receive and immunity to impulse noise D. Less bandwidth used and greater power efficiency 10 / 12 G2A09Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands? A. Lower sideband is more efficient than upper sideband at these frequencies B. Lower sideband is the only sideband legal on these frequency bands C. Because it is fully compatible with an AM detector D. It is commonly accepted amateur practice 11 / 12 G2A10Which of the following statements is true of VOX operation versus PTT operation? A. The received signal is more natural sounding B. It allows “hands free” operation C. It occupies less bandwidth D. It provides more power output 12 / 12 G2A11Generally, who should respond to a station in the contiguous 48 states calling “CQ DX”? A. Any caller is welcome to respond B. Only stations in Germany C. Any stations outside the lower 48 states D. Only contest stations Your score isThe average score is 0% 0% Restart quiz Ed 0 コメント
