1-49. What device provides looping
current for the tty?
1. A solid state power supply
2. A generator
3. An alternator
4.
The tty battery
1-50. What is/are used to interconnect
all the tty equipment in any
configuration needed?
1. Multiple cabling
2. Wire runs
3.
TTY panel
4.
Switching resistors
1-51. Which of the following methods
is/are used to reduce fading and
interference in long-range
communications?
1.
Frequency diversity
2.
Space diversity
3.
Both 1 and 2 above
4.
Ionospheric inversion
1-53. During unpatching, pulling which
plug from its tty panel jack
first will produce a dangerous
dc voltage on the exposed plug?
1.
Looping
2.
Set
1-54. How many rotary switch positions
will you find on a remote
transmitter control unit?
1. One
2. Two
3. Three
4. Four
1-55.
In AFTS, to what does the term
“half-duplex” refer?
1.
“Send only”
2.
“Receive only”
3.
“Send or receive”
4.
All of the above
1-52. What type of frequency diversity
is used for multichannel
broadcasts?
1.
Signal
2.
Space
3.
Triple
4.
Tone
5
