T8A – Basic characteristics of FM and SSB; Bandwidth of various modulation modes: CW, SSB, FM, fast-scan TV; Choice of emission type: selection of USB vs LSB, use of SSB for weak signal work, use of FM for VHF packet and repeaters 

- [[T8A01]] (C)
Which of the following is a form of amplitude modulation? #card
	- A. Spread spectrum
	- B. Packet radio
	- C. Single sideband
	- D. Phase shift keying (PSK)

- [[T8A02]] (A)
What type of modulation is commonly used for VHF packet radio transmissions? #card
	- A. FM or PM
	- B. SSB
	- C. AM
	- D. PSK

- [[T8A03]] (C)
Which type of voice mode is often used for long-distance (weak signal) contacts on the VHF and UHF bands? #card
	- A. FM
	- B. DRM
	- C. SSB
	- D. PM

- [[T8A04]] (D)
Which type of modulation is commonly used for VHF and UHF voice repeaters? #card
	- A. AM
	- B. SSB
	- C. PSK
	- D. FM or PM

- [[T8A05]] (C)
Which of the following types of signal has the narrowest bandwidth? #card
	- A. FM voice
	- B. SSB voice
	- C. CW
	- D. Slow-scan TV

- [[T8A06]] (A)
Which sideband is normally used for 10 meter HF, VHF, and UHF single-sideband communications? #card
	- A. Upper sideband
	- B. Lower sideband
	- C. Suppressed sideband
	- D. Inverted sideband

- [[T8A07]] (C)
What is a characteristic of single sideband (SSB) compared to FM? #card
	- A. SSB signals are easier to tune in correctly
	- B. SSB signals are less susceptible to interference
	- C. SSB signals have narrower bandwidth
	- D. All these choices are correct

- [[T8A08]] (B)
What is the approximate bandwidth of a typical single sideband (SSB) voice signal? #card
	- A. 1 kHz
	- B. 3 kHz
	- C. 6 kHz
	- D. 15 kHz

- [[T8A09]] (C)
What is the approximate bandwidth of a VHF repeater FM voice signal? #card
	- A. Less than 500 Hz 
	- B. About 150 kHz
	- C. Between 10 and 15 kHz
	- D. Between 50 and 125 kHz

- [[T8A10]] (B)
What is the approximate bandwidth of AM fast-scan TV transmissions? #card
	- A. More than 10 MHz
	- B. About 6 MHz
	- C. About 3 MHz
	- D. About 1 MHz

- [[T8A11]] (B)
What is the approximate bandwidth required to transmit a CW signal? #card
	- A. 2.4 kHz
	- B. 150 Hz
	- C. 1000 Hz
	- D. 15 kHz

- [[T8A12]] (B)
Which of the following is a disadvantage of FM compared with single sideband? #card
	- A. Voice quality is poorer
	- B. Only one signal can be received at a time
	- C. FM signals are harder to tune
	- D. All these choices are correct