راوتر موزع لاسلكي Ubiquiti AmpliFi Long Range HD Mesh Wi-Fi System
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Ubiquiti AmpliFi Long Range
HD Mesh Wi-Fi System
The AmpliFi HD (High Density) Mesh Wi-Fi System includes an AmpliFi Mesh Router and two wireless MeshPoints. It combines deployment flexibility and maximum Wi-Fi coverage for your home
MIMO
MIMO allows multiple streams of data to be sent in parallel. Unlike other home Wi-Fi mesh systems, all AmpliFi Routers and Mesh Points use 3-stream MIMO, allowing three streams of data to be sent to a supporting device.
Many argue that most client devices are either 1-stream SISO or 2-stream MIMO and that only higher-end devices like Apple’s MacBook Pro support this technology.
In this blog post, we look at how the AmpliFi system provides a performance boost for all devices: from single-stream smartphones to high-end 3-stream laptops.
Speed and Time
When driving from point A to B, we know that faster speeds translate to lesser time. Wireless networks work similarly: The same amount of data takes less time to transfer when using higher wireless speeds. 3-stream MIMO offers a 50% boost in transfer rates, compared to 2-stream MIMO (1.3 Gbps versus 866 Mbps). Hence, a 3-stream client will be able to transfer the same amount of data in 50% less time than a 2-stream client.
How does that help 2-stream and 1-stream clients?
The AmpliFi Wi-Fi system typically serves several devices, such as smartphones, laptops, cameras, thermostats, etc. Since a 3-stream device takes 50% less time, the savings can now be distributed to other devices, and more time for them means:
- They can transfer more data.
- More devices can be served.
Longer Range and Better Connectivity
With 3-stream MIMO, AmpliFi can use three antennas to transmit wireless data, regardless of the number of streams supported by the client device.
This provides 50% increased range (as compared to a 2-stream Wi-Fi system), due to:
- Multiple data copies are sent.
Wireless networks are prone to interference and information loss. Just like having a disk backup helps in recovering lost data, the AmpliFi system replicates the information across all three antennas when sending data to clients.
This technique is called Cyclic Delay Diversity (CDD) or Cyclic Shift Diversity (CSD).
Data received from multiple antennas.
When a client device such as a smartphone or tablet transmits information back to the AmpliFi system, AmpliFi takes the best bits of information from each of the three antennas and automatically combines them. The technical name for this process is Maximal Ratio Combining (MRC).
Home Wi-Fi Mesh Technology
AmpliFi’s multi-radio Wi-Fi system eliminates dead spots utilizing mesh point technology to provide premium, ubiquitous Wi-Fi coverage throughout your home.
| الشركة المصنعة | Ubiquiti Networks |
| Wireless standard | 802.11a/b/g/n/ac |
| نوع الأنتينا | (3) Dual-Band Antennas |
| Interface | Wi-Fi/Gigabit Ethernet (1) WAN, (4) LAN |
| Output power capacity | 7 W (max.)&11 W (max.) |
| Wireless Security | WPA2-PSK AES/TKIP |
| Frequency Bands | Dual-Band |
| Connectivity | Wi-Fi |
| مزود الطاقة | 9 V, 1.7 A USB adapter |