BasicB-003-019-008

Where should the chassis ground terminals on all station equipment be connected?

A
Answer
Basic radio theory
Type
A
To the station's single-point ground
B
To separate ground electrodes
C
To the antenna system ground
D
To adjacent devices in a chain

Answer Notes

Connecting all chassis ground terminals to a single-point ground (often called a 'star ground') ensures that all equipment is at the exact same electrical potential. This is a crucial best practice in any amateur radio station. If you were to daisy-chain equipment or use separate ground electrodes, you risk creating 'ground loops.' Ground loops occur when there is a slight voltage difference between the grounds of different equipment, which can introduce severe audio hum, RF interference, and even stray RF shock hazards. A heavy copper bus bar mounted behind the operating desk is a common and effective way to establish this single-point ground.
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Your third-floor station has a ground wire running 10 metres down to a ground rod. You get an RF burn when you touch your HF transceiver while transmitting. What is the likely cause?
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