Results
Q1. [U] When a radio frequency (RF) of 2600 kHz is amplitude modulated with an audio frequency (AF) of 10 kHz, the frequency band will be.
2610 kHz to 2590 KHz
Q2. The bandwidth produced when a radio frequency (RF) of 3000 kHz is amplitude modulated with an audio frequency (AF) of 5 kHz is:
10 kHz
Q3. Which of the following is an advantage of single sideband (SSB) emissions?
All of the above
Q4. [U] %*The bandwidth produced when a radio frequency (RF) of 5000 kHz is amplitude modulated with an audio frequency (AF) of 12 kHz is:
24 kHz
Q5. A radio frequency (RF) of 2800 kHz (200 W) is amplitude modulated with an audio frequency (AF) of 120 kHz (20 W). By removing one sideband you can save ________ power.
10 W
Q6. The bandwidth produced when a radio frequency (RF) of 3000 kHz is amplitude modulated with an audio frequency (AF) of 3 kHz is:
6 kHz
Q7. Amplitude modulation is used in______
VOR and NDB
Q8. When a radio frequency (RF) of 2600 kHz is amplitude modulated with an audio frequency (AF) of 50 kHz, the frequency band will be.
2650 kHz to 2550 KHz
Q9. The bandwidth produced when a radio frequency (RF) of 4716 kHz is amplitude modulated with an audio frequency (AF) of 6 kHz is:
12 kHz
Q10. [M] Which of the following statements concerning FM is correct?
The frequency of the RF is modified by the amplitude of the AF
Q11. [M] #Which of the following statements concerning AM is correct?
The amplitude of the RF is modified by the amplitude of the AF
Q12. A radio frequency (RF) of 2000 kHz (200 W) is amplitude modulated with an audio frequency (AF) of 100 kHz (40 W). By removing one sideband you can save ________ power being utilised by that side band.
20 W
Q13. [M] Pulse modulation is used in______
SSR
Q14. [U] A radio transmitter modulator?
Superimposes an audio frequency signal (AF) onto a radio frequency signal (RF)
Q15. XX The emission characteristics A3E describe?
VHF communications
Q16. The emission characteristics A1A describe?
VHF communications
