Which of the following can indicate interference or jamming besides no response to transmissions?

Which of the following can indicate interference or jamming besides no response to transmissions?

• A. Traffic on the net
• B. Stable transmissions
• C. Low noise
• D. Strong encryption

Answer: (A)

Interference or jamming often reveals itself by visible activity on the channel, not just by a lack of reply. When you notice traffic on the net, you’re seeing other stations transmitting or unusual transmissions competing for the same frequency. That ongoing or chaotic activity can mask or disrupt your own messages, which is a hallmark of interference or deliberate jamming. The other options don’t point to interference. Stable transmissions suggest the signal is coming through cleanly. Low noise implies a quiet, clean channel. Strong encryption affects privacy, not channel occupancy or signal quality. So seeing traffic on the net is the clue that something is occupying the channel and could be interference or jamming.

Interference or jamming often reveals itself by visible activity on the channel, not just by a lack of reply. When you notice traffic on the net, you’re seeing other stations transmitting or unusual transmissions competing for the same frequency. That ongoing or chaotic activity can mask or disrupt your own messages, which is a hallmark of interference or deliberate jamming.

The other options don’t point to interference. Stable transmissions suggest the signal is coming through cleanly. Low noise implies a quiet, clean channel. Strong encryption affects privacy, not channel occupancy or signal quality. So seeing traffic on the net is the clue that something is occupying the channel and could be interference or jamming.