In one of the wireless data acquisition installations, there is no data transfer during rain and mist. The wireless...
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
system works in 2.4 GHz frequency. What could be the cause of this?
Anything encountered between a wireless transmitter and receiver can reduce signal strength through attenuation. This not only includes solid objects like walls and doors, but "liquid objects" like rain and mist.
According to the CWNA Study Guide, 2.4 GHz signals may be attenuated by up to 0.05 dB/km by torrential rain or 0.02 dB/km by thick fog. 5 GHz signals may be attenuated by up to 0.5 dB/km by torrential rain or 0.07 dB/km by thick fog. Rain can also reduce signal strength through water accumulation on other objects (trees, leaves, absorbent walls) which serves to increase their attenuation.
Another (potentially much larger) impact of rain/fog is the adverse effect of moisture on cables and connectors not sufficiently protected against exposure.
Note that this answer assumes that you're talking about wireless transfer between outdoor devices, where the rain actually falls in between transmitter and receiver. Indoor signal strength may not be noticeably affected by rain outside.
Dig Deeper on Troubleshooting Wireless Networks
Related Q&A from Lisa Phifer
Whether you need a basic open source mobile device management tool for your company's Apple or Android devices, or something more customized, you ...continue reading
Advancements in 4G LTE networks improved the security of cellular data transmission, but it still varies wildly from network to network.continue reading
The enterprise mobility management market for wearable devices is in its infancy, but IT can still use existing EMM tools to manage wearables.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.