At what height above ground is an NVIS antenna typically installed? [G9D03] A. As close to 1/2 wavelength as possible B. As close to one wavelength as possible C. Height…

Where should an in-line SWR meter be connected to monitor the standing wave ratio of the station antenna system? [T4A05] A. In series with the feed line, between the transmitter…

What is the advantage of including a parity bit with an ASCII character stream? [E8C12] A. Faster transmission rate B. The signal can overpower interfering signals C. Foreign language characters…

Which of the following is an effect of overmodulation? [G8A08] A. Insufficient audio B. Insufficient bandwidth C. Frequency drift D. Excessive bandwidth The answer is D. Excessive bandwidth.  Now, for…

Which of these components can be used as an electronic switch or amplifier? [T6B03] A. Oscillator B. Potentiometer C. Transistor D. Voltmeter Piece of cake this one is….  Lets go…

Which of the following digital modes is especially useful for EME communications? [E2D03] A. FSK441 B. PACTOR III C. Olivia D. JT65 Due to the time it takes for signals…

Which of the following frequencies is within the General Class portion of the 80-meter band? [G1A08, 97.301(d)] A. 1855 kHz B. 2560 kHz C. 3560 kHz D. 3650 kHz Well,…

What causes spin fading when referring to satellite signals? [T8B09] A. Circular polarized noise interference radiated from the sun B. Rotation of the satellite and its antennas C. Doppler shift…