Technician Licensing Class

Your First Radio

Section 11

Valid July 1, 2014

Through

June 30, 2018

Your First Radio

• T4B04 Quick access to a favorite frequency on your transceiver can be done by storing the frequency in a

memory channel.

T9A04 A disadvantage of the "rubber duck" antenna supplied with most handheld radio transceivers is that it does not transmit or receive as effectively as a full-sized antenna.

Your First Radio

• T9A07 A good reason not to use a "rubber duck" antenna inside your car is that signals can be significantly weaker than when it is outside of the vehicle.

• T7A10 An RF power amplifier increases the low-power output from a handheld transceiver.

VHF/UHF Power Amplifier

Your First Radio

• T7A07 PTT is the term used for the push to talk function /button which switches between receive and transmit.

• T8A04 FM is the type of modulation most commonly used for VHF and UHF voice repeaters.

• T8A09 The approximate bandwidth of a VHF repeater FM phone signal is between 10 and 15 kHz.

• T8A02 FM is the type of modulation most commonly used for VHF packet radio transmissions. (Packet is wireless data transmission)

Your First Radio

• T2B05 The amount of deviation of an FM (as opposed to PM) signal is determined by the amplitude of the modulating signal

• T2B06 When the deviation of an FM transmitter is increased, Its signal occupies more bandwidth.

• T4A02 A computer can be used as part of an amateur radio station for:

Logging contacts and contact informationSending and/or receiving CWGenerating and decoding digital signals.

Take Aways

Take Aways

PTT is the term used for the push to talk function /button which switches between receive and transmit.

A way to enable quick access to a favorite frequency on your transceiver is to store the frequency in a memory channel.

A disadvantage of the "rubber duck" antenna supplied with most handheld radio transceivers is it does not transmit or receive as effectively as a full-sized antenna.

A good reason NOT to use a "rubber duck" antenna inside your car is that signals can be significantly weaker than when it is outside of the vehicle.

Take Aways

An RF power amplifier increases the low-power output from a handheld transceiver.

FM is most commonly used for VHF and UHF voice repeaters.

The approximate bandwidth of a VHF repeater FM phone signal is between 10 and 15 kHz.

Frequency modulation (FM) is most commonly used for VHF packet radio transmissions.

Take Aways

The amount of deviation of an FM (as opposed to PM) signal is determined by the amplitude of the modulating signal

When the deviation of an FM transmitter is increased, Its signal occupies more bandwidth.

A computer can be used as part of an amateur radio station for all of these tasks Logging contacts and contact information Sending and/or receiving CW Generating and decoding digital signals.

Valid July 1, 2014

Through

June 30, 2018

Your First Radio

Element 2 Technician Class Question Pool

Element 2 Technician Class Question Pool

11

T7A07 What is meant by the term “PTT”?

A. Pre-transmission tuning to reduce transmitter harmonic emission

B. Precise tone transmissions used to limit repeater access to only certain signals

C. A primary transformer tuner use to match antennas

D. The push to talk function which switches between receive and transmit

12

T4B04 What is a way to enable quick access to a favorite frequency on your transceiver?

A. Enable the CTCSS tones

B. Store the frequency in a memory channel

C. Disable the CTCSS tones

D. Use the scan mode to select the desired frequency

13

T9A04 What is a disadvantage of the "rubber duck" antenna supplied with most handheld radio transceivers?

A. It does not transmit or receive as effectively as a full-sized antenna

B. It transmits a circularly polarized signal

C. If the rubber end cap is lost it will unravel very quickly

D. All of these choices are correct

14

T9A07 What is a good reason not to use a "rubber duck" antenna inside your car?

A. Signals can be significantly weaker than when it is outside of the vehicle

B. It might cause your radio to overheat

C. The SWR might decrease, decreasing the signal strength

D. All of these choices are correct

15

T7A10 What device increases the low-power output from a handheld transceiver?

A. A voltage divider

B. An RF power amplifier

C. An impedance network

D. All of these choices is correct

16

T8A04 Which type of modulation is most commonly used for VHF and UHF voice repeaters?

A. AM

B. SSB

C. PSK

D. FM

17

T8A09 What is the approximate bandwidth of a VHF repeater FM phone signal?

A. Less than 500 Hz

B. About 150 kHz

C. Between 10 and 15 kHz

D. Between 50 and 125 kHz

18

T2B05 What determines the amount of deviation of an FM (as opposed to PM) signal?

A. Both the frequency and amplitude of the modulating signal

B. The frequency of the modulating signal

C. The amplitude of the modulating signal

D. The relative phase of the modulating signal and the carrier

19

T2B06 What happens when the deviation of an FM transmitter is increased?

A. Its signal occupies more bandwidth

B. Its output power increases

C. Its output power and bandwidth increases

D. Asymmetric modulation occurs

20

T8A02 What type of modulation is most commonly used for VHF packet radio transmissions?

A. FM

B. SSB

C. AM

D. Spread Spectrum

21

T4A02 How might a computer be used as part of an amateur radio station?

A. For logging contacts and contact information

B. For sending and/or receiving CW

C. For generating and decoding digital signals

D. All of these choices are correct