Ubee UBC1329AA00 Advanced Wi-Fi 6 Voice Gateway User Manual • February 2021 94
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 if needed.
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
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