LoRa technology is described as having which combination of bandwidth and range?

• A. Low BW but long range (no limit by physics, limited by human)
• B. High BW but long range (no limit by physics, limited by human)
• C. Low BW but long range (no limit by physics and by human)
• D. High BW but long range (no limit by physics and by human)

Answer: (A)

LoRa builds its long-range capability by using a very narrow bandwidth and a spreading modulation that boosts receiver sensitivity. By chopping the signal into a small bandwidth, the same signal power stands out more clearly above noise, which increases the link budget and lets signals travel farther. The trade-off is that data rate drops as you push for more range, since the modulation and time-on-air increase.

Because of this, describing LoRa as low bandwidth with long range is the best fit. The idea that there is “no limit by physics” isn’t accurate—path loss and environmental factors always cap how far a signal can travel—but LoRa achieves impressive reach precisely by operating with a small bandwidth to maximize sensitivity, with practical limits typically coming from regulations, duty cycles, and hardware. The option suggesting high bandwidth would imply higher data rates but shorter reach, and the one claiming no physical limit isn’t correct.