BasicB-008-004-006
What causes splatter interference?
B
Answer
Safety
Type
A
Keying a transmitter too fast
B
Overmodulating a transmitter
C
The transmitting antenna is non-resonant
D
Unwanted feedback in an amplifier stage
Answer Notes
Splatter interference occurs when a voice transmitter is overmodulated, meaning the audio signal drives the amplifier beyond its linear operating range. This clips the signal and creates unwanted sidebands that spread out, interfering with adjacent frequencies.
Other options cause different types of issues. Keying a transmitter too fast causes "key clicks" in CW (Morse code) operation, not voice splatter. A non-resonant antenna causes high SWR, and unwanted feedback in an amplifier typically causes continuous squealing or parasitic oscillations.
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If you are told your station was heard on 21.375 MHz but at the time you were operating on 7.125 MHz. What is one reason that could cause this to happen?
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A television tuned to channel 3 (60 MHz - 66 MHz) experiences interference when you are transmitting on the 15-metre band. Other channels are not affected. What is the most likely cause?