What effect does multi-path propagation have on data transmissions?
Transmission rates must be increased by a factor equal to the number of separate paths observed
Transmission rates must be decreased by a factor equal to the number of separate paths observed
No significant changes will occur if the signals are transmitted using FM
Error rates are likely to increase✓Правильный ответ
Объяснение
Multipath delivers delayed copies of the same transmission, so a symbol arriving late overlaps the next one and corrupts it. The result is a higher error rate, and simply changing the transmission rate or using FM does not remove the delayed copies.