How does spread spectrum technology mitigate the risk of signal jamming?

Spread spectrum technology mitigates the risk of signal jamming by transmitting over a wide frequency spectrum. This approach involves spreading the signal across a broad range of frequencies, rather than concentrating it on a single frequency channel.

The advantage of this method is that it makes the signal more robust against interference and jamming efforts. If a jammer targets a specific frequency, the spread spectrum transmission will still be able to communicate successfully on the other frequencies across which it is transmitted. This diversity helps ensure that even if parts of the signal are lost or degraded due to jamming, the overall communication can still be maintained.

Moreover, spread spectrum techniques also make it more difficult for unauthorized users to detect and interfere with the communication, as they cannot easily pinpoint where the transmission is occurring across the wide spectrum. The result is a more reliable and resilient means of communication, particularly in environments where electronic warfare or signal interference is a concern.

Other options like using longer cables or employing encryption techniques do not address the core issue of how to avoid or mitigate jamming, and transmitting over a narrow frequency spectrum actually increases vulnerability to such interference. Thus, the transmission over a wide frequency spectrum stands out as the correct method for combating jamming risks.