BasicB-001-025-002
Your neighbour's television receiver malfunctions when you are transmitting. What provision in Electromagnetic Compatibility Advisory Bulletin EMCAB-2 deems your transmission is the cause?
A
Answer
Regulations and administration
Type
A
The field strength of your emissions, on your neighbour's premises, is above Innovation, Science and Economic Development Canada's specified immunity criteria
B
The field strength of your emissions, on your neighbour's premises, is below Innovation, Science and Economic Development Canada's specified immunity criteria
C
The malfunction continues when you stop transmitting
D
You are transmitting at or below your maximum permitted power
Answer Notes
According to Electromagnetic Compatibility Advisory Bulletin EMCAB-2, a radio transmitter is deemed the cause of interference if the RF field strength measured at the affected premises exceeds ISED's specified immunity criteria. In this scenario, your signal is too strong for the location and overwhelms the device.
When the field strength is above the acceptable limit, the amateur operator is responsible for resolving the issue, usually by reducing power, changing antenna placement, or altering transmission habits. Simply transmitting below your maximum legally permitted power does not absolve you if the localized field strength at the neighbour's house is still too high.
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Your neighbour's stereo system malfunctions when you are transmitting. What provision in Electromagnetic Compatibility Advisory Bulletin EMCAB-2 deems the stereo system's lack of immunity is the cause?
Next · B-001-025-003
When determining the field strength criterion per Electromagnetic Compatibility Advisory Bulletin EMCAB-2, what type of equipment describes devices often used in home entertainment systems, but not strictly speaking radio apparatus?