COMMS SYSTEM OPERATIONS Flashcards
1
Q
Line of sight limits the range of radiotelephone how many miles?
A
20 to 25 miles ( the range)
2
Q
How many words/min can a radio teletypewriter transmit?
A
100
3
Q
How do we transmit pictures or charts?
A
FAX (facsimile)
4
Q
What is the freq range for EHF?
A
30GHZ-300GHZ
5
Q
SHF freq range?
A
3GHZ-30GHZ
6
Q
What order do the freq go in?
A
EVLHVUSE
7
Q
300MHZ- 3GHZ freq name?
A
UHF
8
Q
30MHZ0 300MHZ freq name?
A
VHF
9
Q
What is the range for HF?
A
3MHZ-30MHZ
10
Q
What is the range for MF? (med freq)
A
300KHZ- 3MHZ
11
Q
30KHZ- 300KHZ freq range?
A
LF
12
Q
What order do the HZ go in?
A
hz,khz, mhz, ghz HKMG
13
Q
3KHZ- 30KHZ freq range?
A
VLF
14
Q
What starts the freq range?
A
ELF, up 300HZ
15
Q
What does not lose much of its signal 100s of feet below water?
A
ELF ( the elf likes to swim)
