Then again, maybe these settings are very specific to Realtek's or ALFA's implementation, so perhaps no one outside of Realtek or ALFA would know what they mean, since there doesn't seem to be any public documentation about them. Maybe someone with deep knowledge of how Bluetooth AFH works might know what these settings mean. The Adaptivity settings you're seeing don't seem to have any direct correlation to parts of the ETSI adaptivity test, so it's hard for me to say what it's all about. It probably has a stripped-down Bluetooth radio that simply tells other Bluetooth radios to stop using the frequencies that its Wi-Fi radio is using. Update drivers using the largest database. I note that ALFA says your adapter contains some kind of anti-Bluetooth-interference device, which is probably what this is all about. Get the latest official Realtek RTL8191SU Wireless LAN 802.11n USB 2.0 network adapter drivers for Windows 11, 10, 8.1, 8, or 7. "Adaptivity" seems to relate to ETSI's (European Technology Standards Institute's) adaptive frequency hopping requirements which are mostly for Bluetooth. It allows you to get greater better signal strength, and thus better throughput, at range. There are two ways to update the Realtek wireless LAN driver. ![]() Beamforming is a standard part of 802.11n and 802.11ac. Below we will explain manual and automatic ways to install the 802.11n WLAN driver. You want it on for both VHT and HT.īeamCap/BEAM is almost certainly beamforming. It allows your 802.11 transmissions to be more reliable and efficient. Standard: IEEE 802.11n,IEEE 802.11g, IEEE 802.11b Wireless Speed: 11n: Up to 150Mbps 11g: Up to 54Mbps 11b: Up to 11Mbps Complies with wireless 802. It's a standard part of 802.11n and 802.11ac. It allows your 802.11 transmissions to be more efficient. They should all help and should not hurt, and you want them enabled unless you suspect that your client or AP has a buggy implementation of that feature that is causing problems. The first three sections are about optional features of the IEEE 802.11n and 802.11ac standards. Turn it on for compatibility with older OS\USB controller. As a new Ubuntu/Linux user I want to know what driver is suitable for this USB device and how to install it. Bus 001 Device 004: ID 0bda:f179 Realtek Semiconductor Corp. If you are using Win10 with USB3 then I believe this is left at Disable. lsusb gives the following output for my newly purchased Realtek wifi adapter 802.11n. USB SF Mode: From what I can tell this is a USB "Safe Mode" which is a feature of legacy USB in earlier versions of Windows. ![]() NOTE: Actual device in question is ALFA AWUS036EAC and chipset is RTL8812AU ![]() In the driver properties for "Realtek 8812AU Wireless LAN 802.11ac USB NIC" there is an "Advanced" tab that appears to have some settings which are new to me that are specific to WiFi AC communication.ĭue to speed and connection issues I would like to tune these values but I cannot seem to find any reference that explains these options: **"LdpcCap"**
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