Practice Questions Flashcards
7 cards from real HAM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Practice Questions flashcards as text
What is the maximum power output permitted for an Amateur Extra class licensee operating on 160 meters?
Answer: 1500 watts PEP
FCC Part 97 allows a maximum of 1500 watts PEP output for Amateur Extra class licensees on 160 meters.
Which ITU region includes the contiguous United States?
Answer: ITU Region 2
The contiguous United States is located in ITU Region 2, which covers the Americas.
What term describes a reduction in the ionosphere's ability to refract signals during a solar event?
Answer: Ionospheric absorption
Ionospheric absorption occurs when X-ray and UV radiation from solar flares increases D-layer electron density, attenuating HF signals.
What is the name of the effect where a signal's polarization rotates as it passes through the ionosphere?
Answer: Faraday rotation
Faraday rotation is the rotation of the polarization plane of an electromagnetic wave as it travels through the ionosphere in the presence of Earth's magnetic field.
Which type of emission is designated by FCC as J3E?
Answer: Single sideband suppressed carrier voice
J3E designates single sideband suppressed carrier (SSB) telephony, the standard voice mode used on HF amateur bands.
What is the primary purpose of a PTT (Push-To-Talk) delay in a linear amplifier?
Answer: To sequence keying so the transceiver is muted before high voltage is applied
PTT delay ensures the transceiver switches to transmit before the amplifier's high voltage is applied to the output stage, preventing RF arc damage.
In a G5RV antenna, what is the primary purpose of the open-wire transmission line section?
Answer: To act as a matching transformer to the coaxial feedline
The open-wire ladder-line section of a G5RV acts as an impedance transformer, matching the antenna's feed impedance to 50-ohm coax across multiple bands.