Online courses for the ham radio license exams.

Technician Class Exam Question Pool

effective 7/01/2014 thru 6/30/2018

    Unseen questions
    Weak questions
    Review questions
    Learned questions
    Incorrect answer choices  

T3A-2014: Radio wave characteristics: how a radio signal travels; fading; multipath; wavelength vs. penetration; antenna orientation

T3A01-2014: What should you do if another operator reports that your station’s 2 meter signals were strong just a moment ago, but now they are weak or distorted?

Try moving a few feet or changing the direction of your antenna if possible, as reflections may be causing multi-path distortion

Change the batteries in your radio to a different type

Turn on the CTCSS tone

Ask the other operator to adjust his squelch control

T3A02-2014: Why are UHF signals often more effective from inside buildings than VHF signals?

The shorter wavelength allows them to more easily penetrate the structure of buildings

VHF signals lose power faster over distance

This is incorrect; VHF works better than UHF inside buildings

UHF antennas are more efficient than VHF antennas

T3A03-2014: What antenna polarization is normally used for long-distance weak-signal CW and SSB contacts using the VHF and UHF bands?


Right-hand circular

Left-hand circular


T3A04-2014: What can happen if the antennas at opposite ends of a VHF or UHF line of sight radio link are not using the same polarization?

Signals could be significantly weaker

The modulation sidebands might become inverted

Signals have an echo effect on voices

Nothing significant will happen

T3A05-2014: When using a directional antenna, how might your station be able to access a distant repeater if buildings or obstructions are blocking the direct line of sight path?

Try to find a path that reflects signals to the repeater

Change from vertical to horizontal polarization

Try the long path

Increase the antenna SWR

T3A06-2014: What term is commonly used to describe the rapid fluttering sound sometimes heard from mobile stations that are moving while transmitting?

Picket fencing


Frequency shifting


T3A07-2014: What type of wave carries radio signals between transmitting and receiving stations?



Surface acoustic


T3A08-2014: Which of the following is a likely cause of irregular fading of signals received by ionospheric reflection?

Random combining of signals arriving via different paths

Frequency shift due to Faraday rotation

Interference from thunderstorms

Intermodulation distortion

T3A09-2014: Which of the following results from the fact that skip signals refracted from the ionosphere are elliptically polarized?

Either vertically or horizontally polarized antennas may be used for transmission or reception

Digital modes are unusable

FM voice is unusable

Both the transmitting and receiving antennas must be of the same polarization

T3A10-2014: What may occur if data signals propagate over multiple paths?

Error rates are likely to increase

Transmission rates can be increased by a factor equal to the number of separate paths observed

Transmission rates must be decreased by a factor equal to the number of separate paths observed

No significant changes will occur if the signals are transmitting using FM

T3A11-2014: Which part of the atmosphere enables the propagation of radio signals around the world?

The ionosphere

The stratosphere

The troposphere

The magnetosphere

Color key:
● = Unseen
● = Weak
● = Review
● = Learned
● = Incorrect answer
Previous group:
T2C-2014: Public service: emergency and non-emergency operations; applicability of FCC rules; RACES and ARES; net and traffic procedures; emergency restrictions
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Technician Class Exam Question Pool
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T3B-2014: Radio and electromagnetic wave properties: the electromagnetic spectrum; wavelength vs. frequency; velocity of electromagnetic waves; calculating wavelength
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