Technician License #1

Which of the following are provided by satellite tracking programs?

• All these choices are correct

• Maps showing the real-time position of the satellite track over Earth

• The apparent frequency of the satellite transmission, including effects of Doppler shift

• The time, azimuth, and elevation of the start, maximum altitude, and end of a pass

Tags

NGSS.HS-PS4-1

How many milliamperes is 1.5 amperes?

• 15 milliamperes

• 15,000 milliamperes

• 150 milliamperes

• 1500 milliamperes

Which of the following describes DMR?

• An automatic position tracking mode for FM mobiles communicating through repeaters

• A technique for time-multiplexing two digital voice signals on a single 12.5 kHz repeater channel

• A digital technique for transmitting on two repeater inputs simultaneously for automatic error correction

• An automatic computer logging technique for hands-off logging when communicating while operating a vehicle

Tags

NGSS.HS-PS4-5

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

• SSB

• FM or PM

• AM

• PSK

What is the Amateur Radio Emergency Service (ARES)?

• A training program that certifies amateur operators for membership in the Radio Amateur Civil Emergency Service

• A group of licensed amateurs who are members of the military and who voluntarily agreed to provide message handling services in the case of an emergency

• A training program that provides licensing courses for those interested in obtaining an amateur license to use during emergencies

• A group of licensed amateurs who have voluntarily registered their qualifications and equipment for communications duty in the public service

Tags

NGSS.HS-PS4-5

Which of the following is a safety hazard of a 12-volt storage battery?

• Touching both terminals with the hands can cause electrical shock

• Shorting the terminals can cause burns, fire, or an explosion

• All these choices are correct

• RF emissions from a nearby transmitter can cause the electrolyte to emit poison gas

What is the function of a transceiver's PTT input?

• Input for a preamplifier tuning tone

• Input for a key used to send CW

• Provides a transmit tuning tone when grounded

• Switches transceiver from receive to transmit when grounded

What is generally the best time for long-distance 10 meter band propagation via the F region?

• From dawn to shortly after sunset during periods of high sunspot activity

• From shortly after sunset to dawn during periods of high sunspot activity

• From dawn to shortly after sunset during periods of low sunspot activity

• From shortly after sunset to dawn during periods of low sunspot activity

Tags

NGSS.HS-PS4-1

What would cause a broadcast AM or FM radio to receive an amateur radio transmission unintentionally?

• The deviation of an FM transmitter is set too low

• The receiver is unable to reject strong signals outside the AM or FM band

• The audio amplifier of the transmitter is overloaded

• The microphone gain of the transmitter is turned up too high

Tags

NGSS.HS-PS4-5

Where should an RF power meter be installed?

• In parallel with the push-to-talk line and the antenna

• In the feed line, between the transmitter and antenna

• At the power supply output

• In the power supply cable, as close as possible to the radio

Tags

NGSS.HS-ETS1-3