In radio frequency engineering, an overlap zone occurs where signals from two or more radio stations, transmitting at the same frequency, can be received with comparable intensity.[1] Interference occurs frequently in such a zone.[2]

In order to avoid this, a receiver with directional antenna is used, which can then be aligned in such a way that it will only receive the signal of one transmitter. Alternatively, the signals could be separated using a demodulator in single sideband mode.

With digital radio (Digital Radio Mondiale and Digital Audio Broadcasting being two common types), there is no interference in the overlap zone.[3]

References

  1. ↑ https://www.semanticscholar.org/topic/Overlap-zone/1341301
  2. ↑ "Overlap zone". www.semanticscholar.org. Retrieved 2023-04-02.
  3. ↑ "Why don't radio stations interfere with each others broadcasts?". Physics Forums | Science Articles, Homework Help, Discussion. Retrieved 2023-04-02.

1 - Multifunctional Ultrawideband Antennas Trends, Techniques and Applications By Chinmoy Saha, Jawad Y. Siddiqui, and Yahia M.M. Antar - 2019. P.3 - P.11 - P.46, 47 - P.65.

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