T4A_Ham Radio/Amateur Radio Technician License Question Pool

Описание: Group T4A - - Station setup: connecting a microphone, a power source, a computer, digital equipment, an SWR meter; bonding; Mobile radio installation
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T4A01
Which of the following is an appropriate power supply rating for a typical 50 watt output mobile FM transceiver?

13.8 volts at 12 amperes
T4A02
Which of the following should be considered when selecting an accessory SWR meter?

The frequency and power level at which the measurements will be made
T4A03
Why are short, heavy-gauge wires used for a transceiver's DC power connection?

To minimize voltage drop when transmitting
T4A04
How are the transceiver audio input and output connected in a station configured to operate using FT8?

To the audio input and output of a computer running WSJT-X software
T4A05
Where should an RF power meter be installed?

In the feed line, between the transmitter and antenna
T4A06
What signals are used in a computer-radio interface for digital mode operation?

Receive audio, transmit audio, and transmitter keying
T4A07
Which of the following connections is made between a computer and a transceiver to use computer software when operating digital modes?

Computer "line in" to transceiver speaker connector
T4A08
Which of the following conductors is preferred for bonding at RF?

Flat copper strap
T4A09
How can you determine the length of time that equipment can be powered from a battery?

Divide the battery ampere-hour rating by the average current draw of the equipment
T4A10
What function is performed with a transceiver and a digital mode hot spot?

Communication using digital voice or data systems via the internet
T4A11
Where should the negative power return of a mobile transceiver be connected in a vehicle?

At the 12 volt battery chassis ground
T4A12
What is an electronic keyer?

A device that assists in manual sending of Morse code