WorksheetsELEMENT 4 - REVIEWER
Total questions: 10
Worksheet time: 5mins
What reading on an SWR meter indicates perfect impedance match between the antenna and the feedline?
2 to 1
1 to 3
1 to 1
10 to 1
What is the source of a high-pitched whine that varies with engine speed in a mobile transceiver's receive audio?
The ignition system
The alternator
The electric fuel pump
Anti-lock braking system controllers
Where should a mobile transceiver's power negative connection be made
At the battery or engine block ground strap
At the antenna mount
To any metal part of the vehicle
Through the transceiver's mounting bracket
Which of the following frequencies is in the 12-meter band?
3.940 MHz
12.940 MHz
17.940 MHz
24.940 MHz
Which frequency is within the 6-meter band?
49.00 MHz
52.525 MHz
28.50 MHz
222.15 MHz
What should you do if you receive a report that your station's transmissions are causing splatter or interference on nearby frequencies?
Increase transmit power
Change mode of transmission
Report the interference to the equipment manufacturer
Check your transmitter for off-frequency operation or spurious emissions
What type of instrument can be used to accurately measure an RF field?
A receiver with an S meter
A calibrated field-strength meter with a calibrated antenna
A betascope with a dummy antenna calibrated at 50Ω
An oscilloscope with a high-stability crystal marker generator
Which of the following can be determined with a field strength meter?
The radiation resistance of an antenna
The radiation pattern of an antenna
The presence and amount of phase distortion of a transmitter
The presence and amount of amplitude distortion of a transmitter
Which of the following describes the common meaning of the term "repeater offset"?
The distance between the repeater's transmit and receive antennas
The time delay before the repeater timer resets
The difference between the repeater's transmit and receive frequencies
The maximum frequency deviation permitted on the repeater's input signal
What is an advantage of a digital voltmeter as compared to an analog voltmeter?
Better for measuring computer circuits
Better for RF measurements
Better precision for most uses
Faster response
