FREE Ham Radio Technician General Questions and Answers

Question 1

When transmitting AFSK signals via a radio in single sideband mode, what is likely to happen if the ALC system on the transceiver is not properly configured?

Accepted Answer

Improper action of ALC distorts the signal and can cause spurious emissions

Answer

All these choices are correct

Answer

ALC will invert the modulation of the AFSK mode

Answer

When using digital modes, too much ALC activity can cause the transmitter to overheat

Question 2

What should you do as soon as you hear a difficult station break in while conversing with another amateur station?

Accepted Answer

Acknowledge the station in distress and determine what assistance may be needed

Answer

Change to a different frequency

Answer

Continue your communication because you were on the frequency first

Answer

Immediately cease all transmissions

Question 3

How does the receiving station react to an error-filled packet in ARQ data mode?

Accepted Answer

It requests the packet be retransmitted

Answer

It requests a change in transmitting protocol

Answer

It sends the packet back to the transmitting station

Answer

It terminates the contact

Question 4

When memory is described as non-volatile, what does that mean?

Accepted Answer

The stored information is maintained even if power is removed

Answer

The stored information cannot be changed once written

Answer

It is resistant to high temperatures

Answer

It is resistant to radiation damage

Question 5

How is an RF power amplifier's effectiveness assessed?

Accepted Answer

Divide the RF output power by the DC input power

Answer

Multiply the RF input power by the reciprocal of the RF output power

Answer

Add the RF input power to the DC output power

Answer

Divide the DC input power by the DC output power

Question 6

Which of the following best sums up a MOSFET's design?

Accepted Answer

The gate is separated from the channel with a thin insulating layer

Answer

The source is separated from the drain by a thin insulating layer

Answer

The gate is formed by a back-biased junction

Answer

The source is formed by depositing metal on silicon

Question 7

What is a property of skywave signals traveling both short and long paths to reach your location?

Accepted Answer

A slightly delayed echo might be heard

Answer

Periodic fading approximately every 10 seconds

Answer

The signal might be cancelled causing severe attenuation

Answer

Signal strength increased by 3 dB

Question 8

What qualifies as a QPSK31 characteristic?

Accepted Answer

All these choices are correct

Answer

Its bandwidth is approximately the same as BPSK31

Answer

Its encoding provides error correction

Answer

It is sideband sensitive

Question 9

What safety measures must to be taken before installing an interior transmitting antenna?

Accepted Answer

Make sure that MPE limits are not exceeded in occupied areas

Answer

Make sure the antenna is properly shielded

Answer

Locate the antenna close to your operating position to minimize feed line radiation

Answer

Position the antenna the edge of a wall to reduce parasitic radiation

Question 10

Between what two frequencies is a band-pass filter's bandwidth measured?

Accepted Answer

Upper and lower half-power

Answer

Cutoff and rolloff

Answer

Image and harmonic

Answer

Pole and zero