Gear up for the 8.1.3 Measurements Practice Exam, an essential segment of the hamshack.ca QSL Advanced Amateur Radio course material. This targeted exam assesses your proficiency in various measurement techniques and tools crucial for any advanced-level amateur radio operator. The exam encompasses a variety of topics, which include:

  1. AC Measurements: Knowledge of alternating current characteristics such as peak, peak-to-peak, average, and RMS values.
  2. Power Measurements: Understanding of Peak Envelope Power (PEP), comparisons of PEP to average power, and calculations related to the voltage across the load.
  3. Radio Testing Equipment: Familiarity with the use of dip meters and signal generators in radio tuning and testing.
  4. Calibration and Frequency Measurement: Proficiency with crystal calibrators, marking generators, and frequency counters for accurate signal processing.
  5. Oscilloscope: Skills in using an oscilloscope for visualizing waveforms and signal analysis.
  6. Meters and Measurement Devices: Competence in utilizing meters, multimeters, and power meters for various electrical and radio frequency measurements.

Structured with 25 questions selected from a comprehensive pool, the 8.1.3 Measurements Practice Exam is designed to test and reinforce your understanding of these measurement concepts and tools. It allows multiple attempts, ensuring you can measure your progress and achieve a deep understanding of the content.

After completing the 8.1.3 Measurements Practice Exam, you’ve demonstrated your ability to navigate the technicalities of radio measurements, a vital skill set for advanced amateur radio operation. You’ve engaged with AC measurement techniques, understood the nuances of power measurement in radio systems, and gained hands-on knowledge about crucial radio testing equipment.

With this practice under your belt, you’re better equipped to handle the practical aspects of radio measurements and continue your preparation for the Spectrum Management and Telecommunications Advanced Amateur Radio Exam. The next step is to proceed with the rest of the hamshack.ca QSL Advanced Amateur Radio course material, armed with the confidence and understanding you’ve gained from this exam.

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8.1.3 Measurements Exam

Advanced Amateur Radio – Measurements Exam

Step into the 8.1.3 Measurements Practice Exam, a crucial segment of the hamshack.ca QSL Advanced Amateur Radio courses. This exam challenges your knowledge across a spectrum of measurement techniques and instruments integral to advanced amateur radio practices. Test your skills on AC and power measurements, radio testing equipment, calibration methods, oscilloscope functionality, and the proper use of various meters. You’re encouraged to take multiple practice exams and click on the links provided below to review each course thoroughly. Continue to refine your understanding until you’re fully prepared to ace the exam.

3.1 AC – peak, peak-to-peak, average, RMS
3.2 PEP, PEP relative to average power, PEP relative to the voltage across the load
3.3 dip meters, signal generator
3.4 crystal calibrator, marking generator, frequency counter
3.5 Oscilloscope
3.6 meters, multimeter, power meter

1 / 25

Category: Meters, multimeter, power meter

A-003-006-006: The sensitivity of a voltmeter, whose resistance is 150 000 ohms on the 150-volt range, is:

2 / 25

Category: Dip meters, signal generator

A-003-003-007: What is a signal generator?

3 / 25

Category: crystal calibrator, marking generator, frequency counter

A-003-004-007: The frequency accuracy of a frequency counter is determined by:

4 / 25

Category: AC – peak, peak-to-peak, average, RMS

A-003-001-003: What is the equivalent to the RMS value of an AC voltage?

5 / 25

Category: AC – peak, peak-to-peak, average, RMS

A-003-001-010: What is the peak-to-peak voltage of a sine wave that has an RMS voltage of 120 volts?

6 / 25

Category: PEP, PEP relative to average power, PEP relative to the voltage across the load

A-003-002-010: What is the output PEP from a transmitter, if an oscilloscope measures 800 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output?

7 / 25

Category: Oscilloscope

A-003-005-002: What factors limit the accuracy, frequency response and stability of an oscilloscope?

8 / 25

Category: PEP, PEP relative to average power, PEP relative to the voltage across the load

A-003-002-002: To compute one of the following, multiply the peak-envelope voltage by 0.707 to obtain the RMS value, square the result and divide by the load resistance. Which is the correct answer?

9 / 25

Category: Meters, multimeter, power meter

A-003-006-008: What happens inside a multimeter when you switch it from a lower to a higher voltage range?

10 / 25

Category: AC – peak, peak-to-peak, average, RMS

A-003-001-009: Which AC voltage value will produce the same amount of heat as a DC voltage, when applied to the same resistance?

11 / 25

Category: PEP, PEP relative to average power, PEP relative to the voltage across the load

A-003-002-006: What is the output PEP from a transmitter if an oscilloscope measures 200 volts peak-to-peak across a 50-ohm dummy load connected to the transmitter output?

12 / 25

Category: Dip meters, signal generator

A-003-003-006: The dial calibration on the output attenuator of a signal generator:

13 / 25

Category: PEP, PEP relative to average power, PEP relative to the voltage across the load

A-003-002-007: What is the output PEP from a transmitter if an oscilloscope measures 500 volts peak-to-peak across a 50-ohm dummy load connected to the transmitter output?

14 / 25

Category: Meters, multimeter, power meter

A-003-006-005: Voltmeter sensitivity is usually expressed in ohms per volt. This means that a voltmeter with a sensitivity of 20 kilohms per volt would be a:

15 / 25

Category: Dip meters, signal generator

A-003-003-009: Which two instruments are needed to measure FM receiver sensitivity for a 12 dB SINAD ratio (signal + noise + distortion over noise + distortion)?

16 / 25

Category: crystal calibrator, marking generator, frequency counter

A-003-004-006: The clock in a frequency counter normally uses a:

17 / 25

Category: Meters, multimeter, power meter

A-003-006-011: At what line impedance do most RF wattmeters usually operate?

18 / 25

Category: Meters, multimeter, power meter

A-003-006-010: Where should an RF wattmeter be connected for the most accurate readings of transmitter output power?

19 / 25

Category: Dip meters, signal generator

A-003-003-002: What does a dip meter do?

20 / 25

Category: Dip meters, signal generator

A-003-003-001: What is a dip meter?

21 / 25

Category: Meters, multimeter, power meter

A-003-006-002: A moving-coil milliammeter having a full-scale deflection of 1 mA and an internal resistance of 0.5 ohms is to be converted to a voltmeter of 20 volts full-scale deflection. It would be necessary to insert a:

22 / 25

Category: AC – peak, peak-to-peak, average, RMS

A-003-001-007: AC voltmeter scales are usually calibrated to read:

23 / 25

Category: Oscilloscope

A-003-005-010: What is the best instrument to use to check the signal quality of a CW or single-sideband phone transmitter?

24 / 25

Category: PEP, PEP relative to average power, PEP relative to the voltage across the load

A-003-002-001: The power supplied to the antenna transmission line by a transmitter during an RF cycle at the highest crest of the modulation envelope is known as:

25 / 25

Category: crystal calibrator, marking generator, frequency counter

A-003-004-002: What factors limit the accuracy, frequency response and stability of a frequency counter?

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