300-360 · Question #183
You are using Ekahau to plan a wireless network. Which unit of measurement is used by RF obstacles to show RF loss?
The correct answer is A. db. In Ekahau Site Survey (ESS), RF obstacles (walls, floors, doors, etc.) are assigned an attenuation value measured in dB (decibels). dB is a relative unit expressing the ratio of signal loss caused by passing through a material - for example, a concrete wall might be assigned 15…
Question
You are using Ekahau to plan a wireless network. Which unit of measurement is used by RF obstacles to show RF loss?
Options
- Adb
- BSNR
- CdBm
- DRSSI
How the community answered
(22 responses)- A86% (19)
- B5% (1)
- C5% (1)
- D5% (1)
Explanation
In Ekahau Site Survey (ESS), RF obstacles (walls, floors, doors, etc.) are assigned an attenuation value measured in dB (decibels). dB is a relative unit expressing the ratio of signal loss caused by passing through a material - for example, a concrete wall might be assigned 15 dB of loss. This is distinct from dBm, which is an absolute power level relative to 1 milliwatt. SNR (Signal-to-Noise Ratio) and RSSI are measurement metrics for received signal quality, not material attenuation values. Ekahau uses dB for obstacle loss because it represents how much the material reduces signal power regardless of the transmit power.
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