What is the maximum height above ground for an antenna structure not near a public use airport without requiring notification to the FAA and registration with the FCC?
Under what conditions are state and local governments permitted to regulate amateur radio antenna structures?
Under no circumstances, FCC rules take priority (0% chose this)
At any time and to any extent necessary to accomplish a legitimate purpose of the state or local entity, provided that proper filings are made with the FCC (0% chose this)
Only when such structures exceed 50 feet in height and are clearly visible 1,000 feet from the structure (0% chose this)
Amateur Service communications must be reasonably accommodated, and regulations must constitute the minimum practical to accommodate a legitimate purpose of the state or local entity (0% chose this)
When is it permissible to communicate with amateur stations in countries outside the areas administered by the Federal Communications Commission?
Only when the foreign country has a formal third-party agreement filed with the FCC (0% chose this)
When the contact is with amateurs in any country except those whose administrations have notified the ITU that they object to such communications (0% chose this)
Only when the contact is with amateurs licensed by a country which is a member of the United Nations, or by a territory possessed by such a country (0% chose this)
Only when the contact is with amateurs licensed by a country which is a member of the International Amateur Radio Union, or by a territory possessed by such a country (0% chose this)
Who or what determines “good engineering and good amateur practice,” as applied to the operation of an amateur station in all respects not covered by the Part 97 rules?
Who may receive partial credit for the elements represented by an expired amateur radio license?
Any person who can demonstrate that they once held an FCC-issued General, Advanced, or Amateur Extra class license that was not revoked by the FCC (0% chose this)
Anyone who held an FCC-issued amateur radio license that expired not less than 5 and not more than 15 years ago (0% chose this)
Any person who previously held an amateur license issued by another country, but only if that country has a current reciprocal licensing agreement with the FCC (0% chose this)
Only persons who once held an FCC issued Novice, Technician, or Technician Plus license (0% chose this)
On which of the following band segments may you operate if you are a Technician class operator and have an unexpired Certificate of Successful Completion of Examination (CSCE) for General class privileges?
Only the Technician band segments until your upgrade is posted in the FCC database (0% chose this)
Only on the Technician band segments until you have a receipt for the FCC application fee payment (0% chose this)
On any General or Technician class band segment (0% chose this)
On any General or Technician class band segment except 30 meters and 60 meters (0% chose this)
Which of the following conditions require a licensed amateur radio operator to take specific steps to avoid harmful interference to other users or facilities?
When operating within one mile of an FCC Monitoring Station (0% chose this)
When using a band where the Amateur Service is secondary (0% chose this)
When a station is transmitting spread spectrum emissions (0% chose this)
Under what circumstances are messages that are sent via digital modes exempt from Part 97 third-party rules that apply to other modes of communication?
On what bands may automatically controlled stations transmitting RTTY or data emissions communicate with other automatically controlled digital stations?
On any band segment where digital operation is permitted (0% chose this)
Anywhere in the non-phone segments of the 10-meter or shorter wavelength bands (0% chose this)
Only in the non-phone Extra Class segments of the bands (0% chose this)
Anywhere in the 6-meter or shorter wavelength bands, and in limited segments of some of the HF bands (0% chose this)
When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?
Which of the following indicates that you are looking for an HF contact with any station?
Sign your call sign once, followed by the words “listening for a call” -- if no answer, change frequency and repeat (0% chose this)
Say “QTC” followed by “this is” and your call sign -- if no answer, change frequency and repeat (0% chose this)
Repeat “CQ” a few times, followed by “this is,” then your call sign a few times, then pause to listen, repeat as necessary (0% chose this)
Transmit an unmodulated carried for approximately 10 seconds, followed by “this is” and your call sign, and pause to listen -- repeat as necessary (0% chose this)
What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?
The input voltage is multiplied by 4 (0% chose this)
The input voltage is divided by 4 (0% chose this)
Additional resistance must be added in series with the primary to prevent overload (0% chose this)
Additional resistance must be added in parallel with the secondary to prevent overload (0% chose this)
Modulation using quasi-parallel to serial conversion to reduce bandwidth (0% chose this)
Modulation using quadra-pole sideband keying to generate spread spectrum signals (0% chose this)
Modulation using Fast Fourier Transforms to generate frequencies at the first, second, third, and fourth harmonics of the carrier frequency to improve noise immunity (0% chose this)
Modulation in which digital data is transmitted using 0-, 90-, 180- and 270-degrees phase shift to represent pairs of bits (0% chose this)
If the SWR on an antenna feed line is 5:1, and a matching network at the transmitter end of the feed line is adjusted to present a 1:1 SWR to the transmitter, what is the resulting SWR on the feed line?
1:1 (0% chose this)
5:1 (0% chose this)
Between 1:1 and 5:1 depending on the characteristic impedance of the line (0% chose this)
Between 1:1 and 5:1 depending on the reflected power at the transmitter (0% chose this)
Which of the following is a common way to adjust the feed point impedance of an elevated quarter-wave ground-plane vertical antenna to be approximately 50 ohms?
Slope the radials upward (0% chose this)
Slope the radials downward (0% chose this)
Lengthen the radials beyond one wavelength (0% chose this)
In free space, how does the gain of two three-element, horizontally polarized Yagi antennas spaced vertically 1/2 wavelength apart typically compare to the gain of a single three-element Yagi?
Which of the following antenna types will be most effective as a near vertical incidence skywave (NVIS) antenna for short-skip communications on 40 meters during the day?
A horizontal dipole placed between 1/10 and 1/4 wavelength above the ground (0% chose this)
A vertical antenna placed between 1/4 and 1/2 wavelength above the ground (0% chose this)
horizontal dipole placed at approximately 1/2 wavelength above the ground (0% chose this)
A vertical dipole placed at approximately 1/2 wavelength above the ground (0% chose this)
What must you do if an evaluation of your station shows that the RF energy radiated by your station exceeds permissible limits for possible human absorption?
Take action to prevent human exposure to the excessive RF fields (0% chose this)
File an Environmental Impact Statement (EIS-97) with the FCC (0% chose this)
Secure written permission from your neighbors to operate above the controlled MPE limits (0% chose this)
What should be done if evaluation shows that a neighbor might experience more than the allowable limit of RF exposure from the main lobe of a directional antenna?
Change to a non-polarized antenna with higher gain (0% chose this)
Use an antenna with a higher front-to-back ratio (0% chose this)
Take precautions to ensure that the antenna cannot be pointed in their direction when they are present (0% chose this)