The Basic lessons · Station assembly, practice and safety · B-003-001

Building a Safe and Effective HF Station

This lesson explains how to arrange your radio equipment to prevent interference and protect your gear. You will learn the specific roles of filters, tuners, and meters to ensure your signal stays clean and your antenna system is safe.

This lesson is free to read; the rest are part of SignalPrep Pro. The subsection's 9 exam questions are free to practise: practise B-003-001.

What this subsection asks

• To be most effective, where should a low-pass filter be connected in an HF station without an external power amplifier?
• In an HF station that includes an external RF power amplifier, where should a low-pass filter be located?
• Why do modern HF transmitters have a built-in low-pass filter in their RF output circuits?
• Which component in an HF station is used to determine if the antenna system impedance is matched to the transmitter?
• What is the purpose of the antenna switch in an HF station?
• In an HF station, what device might allow the use of an antenna on a band it was not designed for?
• In an HF station, which component is designed to dissipate RF energy and prevent radiation?
• In an HF station, right after which component is the SWR meter inserted?
• When using an HF transmitter with a solid-state final amplifier, which station component may need to be adjusted when changing frequency?