The Application of APRS in Real-Time Tactical Communications
Which of the following is an application of APRS? T8D05 2022-2026
Understanding Data Transmission in APRS
What kind of data can be transmitted by APRS? T8D03 2022-2026
Digital Communications Modes in Amateur Radio
Which of the following is a digital communications mode? T8D01 2022-2026
Understanding Horizontal Polarization in Simple Dipole Antennas
Which of the following describes a simple dipole oriented parallel to Earth’s surface? T9A03 2022-2026
Disadvantage of Short Flexible Antennas in Handheld Transceivers
What is a disadvantage of the short, flexible antenna supplied with most handheld radio transceivers, compared to a full-sized quarter-wave antenna? T9A04 2022-2026
Calculating Quarter-Wavelength Antennas for 146 MHz
What is the approximate length, in inches, of a quarter-wavelength vertical antenna for 146 MHz? T9A08 2022-2026
Radiation Pattern of a Half-Wave Dipole Antenna
In which direction does a half-wave dipole antenna radiate the strongest signal? T9A10 2022-2026
Calculating the Length of a Half-Wavelength 6-Meter Dipole Antenna
What is the approximate length, in inches, of a half-wavelength 6 meter dipole antenna? T9A09 2022-2026