WorksheetsWeek 6 Quiz Wireless
Total questions: 12
Worksheet time: 14mins
HF signals are also called (a)
TV (channels 2 to 13) and FM broadcasting is in the (a) part of the spectrum.
Frequencies above 1 GHz are called (a) .
One micron is the same as
1 x 10 −6
1x 10−9
1 x 106
1 x 109
(a) refers to radiation generally associated with heat.
Part of the electromagnetic spectrum with frequency range between 300-3000 MHz
VHF
UHF
SHF
EHF
Voice Frequency range is between
30-300 Hz
300-3,000 Hz
3-30 kHz
30-300 KHz
It is used to minimize the attenuation of sea water.
ELF
LF
HF
VHF
Surface wave propagation uses what type of antenna?
Horizontally polarized
Vertically polarized
Loop antenna
Yagi uda antenna
This wave uses LOS or in-horizon view.
Direct wave
Ground wave
Sky wave
Electromagnetic wave
This wave travels from the transmitting antenna and has the capability to strike the ionosphere, refract it to ground and reflect it back to the ionosphere.
Direct wave
Ground wave
Space wave
Sky wave
Calculate the radio horizon if a transmitting antenna is 1500 ft. above ground level and a receiving antenna is 70 ft. high. Round off your answer to the nearest whole number. Don't forget the unit of measure. (5 points)
(a)
