Ham Radio Exam Prep
Current Ham Radio Test Pools
Technician License 2018-2022
Free Practice Test: Technician
General License 2019-2023
Free Practice Test: General
Amateur Extra License 2020-2024
Free Practice Test: Amateur Extra
Gallery
Resources
LIVE
Amateur Extra Class: 2020–2024
Today
Sections
E1: Commission's Rules
E2: Operating Procedures
E3: Radio Wave Propagation
E4: Amateur Practices
E5: Electrical Principles
E6: Circuit Components
E7: Practical Circuits
E8: Signals and Emissions
E9: Antennas and Transmission Lines
E0: Safety
Quick Index
Practice Test
Help support WaveTalkers using
Buy Me A Coffee!
Element 4
E4
E4A
E4A05
E4A05:
What is the purpose of the prescaler function on a frequency counter?
It amplifies low-level signals for more accurate counting
It multiplies a higher frequency signal so a low-frequency counter can display the operating frequency
It prevents oscillation in a low-frequency counter circuit
It divides a higher frequency signal so a low-frequency counter can display the input frequency
E4A01
E4A02
E4A03
E4A04
E4A05
E4A06
E4A07
E4A08
E4A09
E4A10
E4A11