Ubee UBC1329AA00 Advanced Wi-Fi 6 Voice Gateway User Manual • February 2021
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9.2
Estimating Wireless Cable Modem to Wireless
Client Distances
The information in this section helps you to determine how far a wireless cable
modem or gateway can be placed from wireless client devices. Environmental
variances include the capabilities of wireless clients and the types of material
through which the wireless signal must pass. When the wireless cable modem
and wireless clients reach the distance threshold between each other, network
performance degrades.
To determine wireless gateway placement:
1.
Connect a wireless client to the wireless UBC1329AA00. Refer to
Connecting a Wireless Device on page 18
2.
Place the wireless client at around one meter (three feet) away from the
UBC1329AA00.
3.
Obtain the RSSI value for the connected client. This value is used in the
formula further below.
4.
Use the following table to determine what materials the wireless signal
must travel through to reach the desired wireless coverage distance.
5.
Use the following table to determine what materials the wireless signal
must travel through to reach the desired wireless coverage distance.
Attenuation Considerations
Material
Attenuation
2.4GHZ
5GHz
Free Space
0.24dB / foot
0.3dB / foot
Interior Drywall
3dB to 4dB
3dB to 5dB
Cubicle Wall
2dB to 5dB
4dB to 9dB
Wood Door (Hollow/Solid)
3dB to 4dB
6dB to 7dB
Brick, Concrete Wall (Note 1)
6dB to 18dB
10dB to 30dB
Glass Window (not tinted)
2dB to 3dB
6dB to 8dB
Double Pane Coated Glass
13dB
20dB
Bullet Proof Glass
10dB
20dB
Steel / Fire Exit Door
13dB to 19dB
25dB to 32dB