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T4A - Amateur radio practices and station set up

Technician Class

Station setup: connecting a microphone, a power source, a computer, digital equipment, an SWR meter; bonding; Mobile radio installation

12 questions | Updated: Feb 19, 2026

All T0A T0B T0C T1A T1B T1C T1D T1E T1F T2A T2B T2C T3A T3B T3C T4A T4B T5A T5B T5C T5D T6A T6B T6C T6D T7A T7B T7C T7D T8A T8B T8C T8D T9A T9B
T4A01

Which of the following is an appropriate power supply rating for a typical 50-watt output mobile FM transceiver?
T4A02

Which of the following should be considered when selecting an accessory SWR meter?
T4A03

Why are short, heavy-gauge wires used for a transceiver’s DC power connection?
T4A04

How are the audio input and output of a transceiver connected in a station configured to operate using FT8?
T4A05

Where should an RF power meter be installed?
T4A06

What signals are used in a computer-radio interface for digital mode operation?
T4A07

Which of the following is one of the connections required between a computer and a transceiver to operate digital modes?
T4A08

Which of the following conductors is preferred for bonding at RF?
T4A09

How can you determine the length of time that equipment can be powered from a battery?
T4A10

What function does a digital mode hotspot perform for nearby transceivers?
T4A11

Where should the negative power return of a mobile transceiver be connected in a vehicle?
T4A12

What is an electronic keyer?