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Which of the following frequencies is within the General Class portion of the 80 meter band?
When is an amateur station permitted to transmit secret codes?
What is the maximum symbol rate permitted for RTTY or data emission transmissions on the 6 and 2 meter bands?
What is the proper way to identify when transmitting on General class frequencies if you have a CSCE for the required elements but your upgrade from Technician has not appeared in the ULS database?
Which of the following is a requirement for a non-licensed person to communicate with a foreign amateur radio station from a US amateur station at which a licensed control operator is present?
Which mode of voice communication is most commonly used on the High Frequency Amateur bands?
What should you do to comply with good amateur practice when choosing a frequency for radio-teletype (RTTY) operation?
When normal communications systems are not available, what means may an amateur station use to provide essential communications when there is an immediate threat to the safety of human life or the protection of property?
What skills learned during "Fox Hunts" are of help to the Amateur Auxiliary?
What is a major advantage of MFSK16 compared to other digital modes?
What does the Q signal "QRV" mean when operating CW?
How long does it take charged particles from Coronal Mass Ejections to affect radio- wave propagation on the Earth?
What usually happens to radio waves with frequencies below the maximum usable frequency (MUF) when they are sent into the ionosphere?
Why is long distance communication on the 40, 60, 80 and 160 meter bands more difficult during the day?
Which of the following is an advantage of a receiver IF filter created with a DSP as compared to an analog filter?
Which of the following can be measured with a directional wattmeter?
What is one good way to avoid stray RF energy in an amateur station?
What does an S-meter measure?
Which of the following is a disadvantage to using wind power as the primary source of power for an emergency station?
What is one reason to use an impedance matching transformer?
What is the peak-to-peak voltage of a sine wave that has an RMS voltage of 120 volts?
What component should be added to an existing resistor in a circuit to increase circuit resistance?
Which of the following is an advantage of an electrolytic capacitor?
When is it acceptable to recharge a carbon-zinc primary cell?
Which of the following is most often provided as an analog integrated circuit?
What type of receiver is suitable for CW and SSB reception but does not require a mixer stage or an IF amplifier?
How many states are there in a 3-bit binary counter?
What happens to the RF carrier signal when a modulating audio signal is applied to an FM transmitter?
How is frequency shift related to keying speed in an FSK signal?
What would be the SWR if you feed a folded dipole antenna that has a 300-ohm feed- point impedance with 50-ohm coaxial cable?
What is one disadvantage of a directly fed random-wire antenna?
Which statement about a Yagi antenna is true?
Which of the following is a disadvantage of multiband antennas?
What is one way that RF energy can affect human body tissue?
Which of the following conditions will cause a Ground Fault Circuit Interrupter (GFCI) to disconnect the 120 or 240 Volt AC line power to a device?